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# ZIMBRA LINK INSTALLER — THE COMPLETE ZIMBRA COLLABORATION ARCHIVE & INSTALLER SUITE

Enterprise Direct Binary Downloads, Official & Unofficial Community Builds, Cryptographic Checksums, Security Advisories, and Automated CLI Installer (ZCS 4.5.x – 10.1.x)

By Harry Dertin Sutisna Alsyundawy

Maintenance Status License: MIT Language: ID Language: EN ZCS Versions Verified Downloads Edition Platform WhatsApp Telegram Donate with PayPal Sponsor with GitHub

# Table of Contents


# Ringkasan Eksekutif & ArsitekturExecutive Summary & Architecture

Zimbra Link Installer adalah repositori referensi arsitektural enterprise, indeks arsip biner lengkap, dan utilitas instalasi otomatis untuk Zimbra Collaboration Suite (ZCS) dari rilis historis 4.5.x hingga rilis aktif 10.1.x.

Repositori ini menyatukan:

  1. Interactive Bash CLI Installer (zimbra-link-installer.sh v2.6.4): Utilitas interaktif aman bilingual (English & Bahasa Indonesia) dengan pre-flight system audit (RAM, storage, FQDN DNS, POSIX pax), penanganan sinyal atomic cleanup trap, privilege elevation helper (run_privileged), dan verifikasi integritas kriptografi SHA256/MD5 otomatis.
  2. Comprehensive Official & Unofficial Archive: Mengindeks seluruh tautan unduhan langsung biner resmi (Network Edition, Open Source Edition, Cumulative Security Patches) dari files.zimbra.com serta seluruh kompilasi biner komunitas independen (FOSS Edition 2018–2026).
  3. Cryptographic Checksums: Nilai hash MD5 dan SHA256 untuk memverifikasi integritas setiap installer secara case-insensitive.
  4. Compilation Masterclass: Panduan lengkap kompilasi mandiri kode sumber ZCS (8.8, 9.0, 10.0, 10.1) pada Ubuntu (20.04, 22.04, 24.04) dan RHEL/Rocky/Alma/Oracle (8 & 9).
  5. Security Vulnerability Dossier: Analisis 32+ CVE (2016–2026) dengan rincian versi terdampak secara spesifik dan terverifikasi resmi pada Zimbra Security Advisories & NIST NVD, taksonomi eksploitasi, dan panduan mitigasi Zero-Day.

Zimbra Link Installer is an enterprise architectural reference repository, comprehensive binary archive index, and automated installation utility for Zimbra Collaboration Suite (ZCS) spanning historical releases from 4.5.x up to active 10.1.x.

This repository unifies:

  1. Interactive Bash CLI Installer (zimbra-link-installer.sh v2.6.4): A secure, bilingual (English & Bahasa Indonesia) interactive utility with pre-flight system audits (RAM, storage, FQDN DNS, POSIX pax), atomic cleanup trap signal handling, privilege elevation helper (run_privileged), and automatic SHA256/MD5 cryptographic integrity verification.
  2. Comprehensive Official & Unofficial Archive: Indexes all official direct binary download links (Network Edition, Open Source Edition, Cumulative Security Patches) from files.zimbra.com as well as independent community binary builds (FOSS Edition 2018–2026).
  3. Cryptographic Checksums: Complete MD5 and SHA256 hash values to verify the authenticity and cryptographic integrity of each installer.
  4. Compilation Masterclass: Comprehensive guide for independently compiling ZCS source code (8.8, 9.0, 10.0, 10.1) on Ubuntu (20.04, 22.04, 24.04) and RHEL/Rocky/Alma/Oracle (8 & 9).
  5. Security Vulnerability Dossier: In-depth analysis of 32+ CVEs (2016–2026) with official affected version matrices verified against Zimbra Security Advisories & NIST NVD, exploit taxonomy, and zero-day emergency response protocols.

Tautan resmi portal Zimbra Synacor, dokumentasi wiki, repository build system, dan rujukan biner komunitas (Unofficial FOSS / OSE):

Official Zimbra Synacor portals, wiki documentation, build system repositories, and community binary references (Unofficial FOSS / OSE):

# Portal Resmi & Dokumentasi Zimbra Synacor

# Unduhan Biner Komunitas Unofficial FOSS / OSE & Mirror

# Script Builder, Incident Response & Toolkits


# Quickstart

# Metode 1: Menggunakan Script Otomatis Interaktif (Direkomendasikan)

Cukup jalankan satu perintah berikut pada terminal server Anda:

BASH
# Unduh dan jalankan Zimbra Link Installer secara langsung
curl -fsSL https://raw.githubusercontent.com/alsyundawy/Zimbra-Link-Installer/main/zimbra-link-installer.sh -o zimbra-link-installer.sh
chmod +x zimbra-link-installer.sh
sudo ./zimbra-link-installer.sh

# Metode 2: Unduhan Manual Biner Target

BASH
# 1. Unduh paket installer target (Contoh: ZCS FOSS 10.1.20 untuk Ubuntu 22.04 LTS)
wget https://cdn.techfiles.online/ubuntu/zcs-10.1.20_GA_0326.UBUNTU22_64.20260821115118.tgz   --header="Referer: https://techfiles.online/"

# 2. Verifikasi checksum SHA256
wget https://cdn.techfiles.online/ubuntu/zcs-10.1.20_GA_0326.UBUNTU22_64.20260821115118.tgz.sha256   --header="Referer: https://techfiles.online/"
sha256sum -c zcs-10.1.20_GA_0326.UBUNTU22_64.20260821115118.tgz.sha256

# 3. Ekstrak dan jalankan instalasi
tar -xzvf zcs-10.1.20_GA_0326.UBUNTU22_64.20260821115118.tgz
cd zcs-10.1.20_GA_0326.UBUNTU22_64.20260821115118
sudo ./install.sh

Skrip zimbra-link-installer.sh (v2.6.4) menyederhanakan siklus pengunduhan dan instalasi ZCS di lingkungan Linux enterprise dengan dukungan penuh dwibahasa (English & Bahasa Indonesia):

The zimbra-link-installer.sh script (v2.6.4) streamlines the download, integrity verification, and installation lifecycle of ZCS in enterprise Linux environments with full bilingual support (English & Bahasa Indonesia):

TEXT
====================================================================
               Z I M B R A   L I N K   I N S T A L L E R
          Enterprise Binary Downloader & Automated Suite (v2.6.4)
====================================================================
  Maintained by Harry Dertin Sutisna Alsyundawy (alsyundawy@gmail.com)
====================================================================

[+] Detected Architecture : x86_64
[+] Detected Distribution : Ubuntu 22.04 LTS (ubuntu 22.04)

SELECT ZIMBRA BINARY CATEGORY:
  1) Zimbra OFFICIAL Network Edition (NE) [10.1, 10.0, 9.0, 8.8.x, 8.7.x, 8.6, 8.5, 8.0, 7.x]
  2) Zimbra OFFICIAL Open Source Edition (FOSS/OSE) [8.8.x, 8.7.x, 8.6, 8.5, 8.0, 7.x]
  3) Zimbra UNOFFICIAL / Community FOSS Builds [10.1.x, 10.0.x, 9.0.0, 8.8.15 (2018–2026)]
  4) Run Pre-Flight System Audit & Prerequisite Checks
  5) Run Telemetry Test on All Binary Links (Deep Link Validator)
  6) Switch Language / Ganti Bahasa [Current: English]
  0) Exit
====================================================================

# Fitur Utama CLICLI Key Features

  • Defensive Shell Architecture: Dilengkapi set -Eeuo pipefail, IFS=$'\n\t', dan umask 022 untuk perlindungan maksimal dari race-condition dan word splitting.
  • Deteksi Otomatis Sistem: Mengidentifikasi distribusi (Ubuntu/RHEL/Rocky/Alma/Oracle Linux), arsitektur kernel (x86_64), kapasitas RAM, dan storage /opt/zimbra.
  • Pre-Flight FQDN & Pax Audit: Memeriksa kesiapan FQDN DNS resolver (hostname -f) dan memastikan utilitas POSIX pax aktif guna menangkal CVE-2022-41352.
  • Anti-Hotlink Header Handling: Menginjeksi header Referer secara otomatis saat mengunduh dari CDN komunitas TechFiles.
  • Integritas Kriptografi Otomatis: Mengunduh hash .sha256 atau .md5 dan memvalidasi integritas file arsip secara case-insensitive sebelum diekstrak.
  • Atomic Cleanup: Menangkap sinyal EXIT, INT, TERM, HUP untuk pembersihan aman direktori temporer.
  • Defensive Shell Architecture: Engineered with set -Eeuo pipefail, IFS=$'\n\t', and umask 022 for robust protection against race conditions and word splitting.
  • Automated OS & Hardware Detection: Auto-identifies distribution (Ubuntu/RHEL/Rocky/Alma/Oracle Linux), kernel architecture (x86_64), RAM capacity, and /opt/zimbra storage space.
  • Pre-Flight FQDN & Pax Audit: Validates FQDN DNS resolution (hostname -f) and verifies POSIX pax utility availability to mitigate CVE-2022-41352.
  • Anti-Hotlink Header Handling: Automatically injects required Referer headers when fetching from TechFiles community CDN mirrors.
  • Automated Cryptographic Integrity: Downloads matching .sha256 or .md5 checksums and validates archive integrity case-insensitively before extraction.
  • Atomic Cleanup Trap: Captures EXIT, INT, TERM, HUP signals to ensure deterministic removal of temporary working files.

# Dependensi & Persyaratan SistemSystem Dependencies & Prerequisites

Sebelum instalasi atau kompilasi ZCS, pastikan dependensi sistem berikut telah terpenuhi:

Ensure the following system prerequisites and dependencies are satisfied prior to ZCS installation or compilation:

# 1. Kebutuhan Runtime Minimum1. Minimum Runtime Requirements

  • Arsitektur: x86_64 (64-bit Linux).
  • Memori RAM: Minimal 8 GB RAM (Direkomendasikan 16–32 GB untuk server produksi aktif).
  • Disk Space: Minimal 50 GB ruang kosong pada direktori /opt/zimbra.
  • Utilitas Wajib: pax, net-tools, sysstat, libaio1, perl, cron.
  • Architecture: x86_64 (64-bit Linux).
  • Memory (RAM): Minimum 8 GB RAM (16–32 GB recommended for active production deployments).
  • Storage (Disk Space): Minimum 50 GB free space dedicated to /opt/zimbra.
  • Mandatory Utilities: pax, net-tools, sysstat, libaio1, perl, cron.

# 2. Kebutuhan Toolchain Kompilasi (Build Environment)2. Compilation Toolchain Requirements (Build Environment)

  • Java Development Kit: OpenJDK 11 / OpenJDK 17 (openjdk-11-jdk, openjdk-17-jdk).
  • Build Automations: Apache Ant (ant, ant-optional), Apache Maven (mvn).
  • C/C++ Native Toolchain: gcc, g++, make, cmake, libtool, autoconf, automake, pkg-config, libcppunit-dev.
  • Scripting & Engine: Perl modules (XML::Simple, Data::UUID, File::Slurp, JSON, YAML), Ruby, Node.js, NPM.
  • Java Development Kit: OpenJDK 11 / OpenJDK 17 (openjdk-11-jdk, openjdk-17-jdk).
  • Build Automation: Apache Ant (ant, ant-optional), Apache Maven (mvn).
  • C/C++ Native Toolchain: gcc, g++, make, cmake, libtool, autoconf, automake, pkg-config, libcppunit-dev.
  • Scripting & Runtimes: Perl modules (XML::Simple, Data::UUID, File::Slurp, JSON, YAML), Ruby, Node.js, NPM.

# Status Verifikasi Unduhan & LegendaDownload Verification Status & Legend

Setiap tautan unduhan dalam repositori ini telah diuji secara berkala dengan skrip telemetri HTTP. Berikut arti label status yang disematkan:

  • 🟢 [Active Direct] — Tautan langsung aktif pada server resmi files.zimbra.com atau GitHub CDN (HTTP 200 OK). Dapat diunduh secara instan tanpa header khusus.
  • 🟡 [Referer Req] — Tautan aktif pada mirror CDN TechFiles.online. Wajib menyertakan header referer Referer: https://techfiles.online/ saat diunduh via CLI / automation script.
  • 🔴 [Need Mirror / Portal Only] — File biner telah diarsipkan oleh upstream vendor atau memerlukan akun berbayar Synacor Portal. Disarankan melakukan kompilasi mandiri via zm-build atau menggunakan rilis komunitas yang setara.

Every download link in this repository is continuously tested with automated HTTP telemetry suites. The status badges are defined as follows:

  • 🟢 [Active Direct] — Active direct link on official files.zimbra.com servers or GitHub CDN (HTTP 200 OK). Downloads instantly without special headers.
  • 🟡 [Referer Req] — Active link on TechFiles.online CDN mirror. Requires the HTTP referer header Referer: https://techfiles.online/ when fetched via CLI or automated scripts.
  • 🔴 [Need Mirror / Portal Only] — Binary archived by upstream vendor or requires Synacor portal authentication. Community builds or self-compilation via zm-build is recommended.

# Official Zimbra Release Archive (4.5.x – 10.1.x)

Note
Seluruh tautan biner resmi dari ZCS 4.5.x hingga 10.1.x, paket rilis komersial Network Edition (NE), edisi Open Source Edition (FOSS), serta Cumulative Security Patches langsung dari server resmi files.zimbra.com (berdasarkan dokumentasi Zimbra Releases Wiki):

# ZCS 10.1.x Series Official Releases (Daffodil)

Pembaruan Patch Aktif: ZCS 10.1.21 Daffodil (Rilis 24 September 2026)Active Patch Update: ZCS 10.1.21 Daffodil (Released September 24, 2026)
Arsitektur rilis ZCS 10.1.x mendistribusikan berkas biner dasar instalasi berupa 10.1.0 GA (tersedia pada tabel di bawah). Pembaruan kumulatif terbaru Patch 10.1.21 (24 September 2026) diaplikasikan secara langsung melalui repositori paket sistem operasi (apt-get install zimbra-patch atau yum update zimbra-patch diikuti zmfixperms --extended && zmcontrol restart). Rilis ini menghadirkan fitur Native Mail Recall, upgrade runtime OpenJDK 17.0.19, penonaktifan cipher lawas TLS_RSA secara default, dukungan HTTP/HTTPS proxy pada License Daemon Service (LDS), modul bahasa Indonesia & Filipina, serta perbaikan keamanan terhadap eksploitasi SNMP RCE (CVE-2026-73570) dan Path Traversal OnlyOffice (CVE-2026-93643).The ZCS 10.1.x release architecture provides standalone base installer archives as 10.1.0 GA (listed in the table below). The latest cumulative Patch 10.1.21 (September 24, 2026) is deployed directly via official OS package repositories (apt-get install zimbra-patch or yum update zimbra-patch followed by zmfixperms --extended && zmcontrol restart). This milestone release delivers Native Mail Recall, OpenJDK 17.0.19 runtime upgrade, default retirement of legacy TLS_RSA ciphers, License Daemon Service (LDS) HTTP/HTTPS proxy support, Indonesian & Filipino language modules, and critical security mitigations for SNMP RCE (CVE-2026-73570) and OnlyOffice Path Traversal (CVE-2026-93643).
Version Edition OS / Platform Binary (.tgz) MD5 SHA256
10.1.0 GA NE Ubuntu 24.04 Download MD5 SHA256
10.1.0 GA NE Ubuntu 22.04 Download MD5 SHA256
10.1.0 GA NE Ubuntu 20.04 Download MD5 SHA256
10.1.0 GA NE Ubuntu 18.04 Download MD5 SHA256
10.1.0 GA NE RHEL / Rocky / Alma 9 Download MD5 SHA256
10.1.0 GA NE RHEL / Rocky / Alma 8 Download MD5 SHA256
10.1.0 GA NE RHEL 7 / CentOS 7 Download MD5 SHA256
10.1.0 BETA NE RHEL / Rocky / Alma 9 Download - -

# ZCS 10.0.x Series Official Releases (Daffodil)

Version Edition OS / Platform Binary (.tgz) MD5 SHA256
10.0.0 GA NE Ubuntu 20.04 Download MD5 SHA256
10.0.0 GA NE Ubuntu 18.04 Download MD5 SHA256
10.0.0 GA NE RHEL / Rocky / Alma 8 Download MD5 SHA256
10.0.0 GA NE RHEL 7 / CentOS 7 Download MD5 SHA256

# ZCS 9.0.0.x Series Official Releases (Kepler)

Version Edition OS / Platform Binary (.tgz) MD5 SHA256
9.0.0 GA NE Ubuntu 20.04 Download MD5 SHA256
9.0.0 GA NE Ubuntu 18.04 Download MD5 SHA256
9.0.0 GA NE Ubuntu 16.04 Download MD5 SHA256
9.0.0 GA NE Ubuntu 14.04 Download MD5 SHA256
9.0.0 GA NE RHEL / Rocky / Alma 8 Download MD5 SHA256
9.0.0 GA NE RHEL / Rocky / Alma 8 Download MD5 SHA256
9.0.0 GA NE RHEL 7 / CentOS 7 Download MD5 SHA256
9.0.0 GA NE RHEL 6 / CentOS 6 Download MD5 SHA256
9.0.0 BETA NE RHEL / Rocky / Alma 8 Download MD5 SHA256

# ZCS 8.8.x Series Official Releases (Joule)

Version Edition OS / Platform Binary (.tgz) MD5 SHA256
8.8.9 GA FOSS Ubuntu 16.04 Download MD5 SHA256
8.8.9 GA FOSS Ubuntu 14.04 Download MD5 SHA256
8.8.9 GA FOSS RHEL 7 / CentOS 7 Download MD5 SHA256
8.8.9 GA FOSS RHEL 6 / CentOS 6 Download MD5 SHA256
8.8.8 GA NE RHEL 7 / CentOS 7 Download - -
8.8.8 GA FOSS Ubuntu 16.04 Download MD5 SHA256
8.8.8 GA FOSS Ubuntu 14.04 Download MD5 SHA256
8.8.8 GA FOSS RHEL 7 / CentOS 7 Download MD5 SHA256
8.8.8 GA FOSS RHEL 6 / CentOS 6 Download MD5 SHA256
8.8.7 GA FOSS Ubuntu 16.04 Download MD5 SHA256
8.8.7 GA FOSS Ubuntu 14.04 Download MD5 SHA256
8.8.7 GA FOSS RHEL 7 / CentOS 7 Download MD5 SHA256
8.8.7 GA FOSS RHEL 6 / CentOS 6 Download MD5 SHA256
8.8.6 GA NE Ubuntu 16.04 - MD5 SHA256
8.8.6 GA FOSS Ubuntu 16.04 Download - -
8.8.5 GA NE RHEL 7 / CentOS 7 Download - -
8.8.5 GA NE RHEL 6 / CentOS 6 - MD5 -
8.8.5 GA FOSS Ubuntu 16.04 - - SHA256
8.8.5 GA FOSS RHEL 7 / CentOS 7 Download - -
8.8.5 GA FOSS RHEL 6 / CentOS 6 Download - -
8.8.15 GA NE Ubuntu 20.04 Download - SHA256
8.8.15 GA NE Ubuntu 18.04 Download MD5 SHA256
8.8.15 GA NE Ubuntu 16.04 Download - -
8.8.15 GA NE Ubuntu 14.04 Download - SHA256
8.8.15 GA NE RHEL 7 / CentOS 7 Download - -
8.8.15 GA NE RHEL 6 / CentOS 6 Download - SHA256
8.8.15 GA NE RHEL / Rocky / Alma 8 Download - SHA256
8.8.15 GA NE RHEL / Rocky / Alma 8 Download - -
8.8.15 GA FOSS Ubuntu 20.04 Download - -
8.8.15 GA FOSS Ubuntu 18.04 Download - SHA256
8.8.15 GA FOSS Ubuntu 16.04 Download MD5 SHA256
8.8.15 GA FOSS Ubuntu 14.04 Download MD5 SHA256
8.8.15 GA FOSS RHEL 7 / CentOS 7 Download - SHA256
8.8.15 GA FOSS RHEL 6 / CentOS 6 Download MD5 SHA256
8.8.15 GA FOSS RHEL / Rocky / Alma 8 Download MD5 SHA256
8.8.15 BETA NE RHEL / Rocky / Alma 8 - - SHA256
8.8.12 GA NE Ubuntu 18.04 - MD5 -
8.8.12 GA FOSS Ubuntu 16.04 Download - SHA256
8.8.12 GA FOSS RHEL 7 / CentOS 7 Download - -
8.8.12 GA FOSS RHEL 6 / CentOS 6 Download - -
8.8.11 GA NE Ubuntu 16.04 Download - -
8.8.11 GA NE RHEL 7 / CentOS 7 Download - -
8.8.11 GA FOSS Ubuntu 16.04 Download MD5 SHA256
8.8.11 GA FOSS Ubuntu 14.04 Download MD5 SHA256
8.8.11 GA FOSS RHEL 7 / CentOS 7 Download MD5 SHA256
8.8.11 GA FOSS RHEL 6 / CentOS 6 Download MD5 SHA256
8.8.10 GA NE Ubuntu 16.04 - MD5 -

# ZCS 8.7.x Series Official Releases (JudasPriest)

Version Edition OS / Platform Binary (.tgz) MD5 SHA256
8.7.9 GA NE Ubuntu 12.04 - - SHA256
8.7.9 GA FOSS Ubuntu 16.04 Download - -
8.7.9 GA FOSS Ubuntu 14.04 - - SHA256
8.7.8 GA NE Ubuntu 16.04 - MD5 -
8.7.7 GA NE Ubuntu 16.04 Download - -
8.7.7 GA NE RHEL 7 / CentOS 7 - - SHA256
8.7.7 GA FOSS RHEL 7 / CentOS 7 Download - -
8.7.7 GA FOSS RHEL 6 / CentOS 6 - MD5 SHA256
8.7.6 GA FOSS RHEL 7 / CentOS 7 Download - SHA256
8.7.4 GA NE Ubuntu 14.04 - - SHA256
8.7.4 GA FOSS RHEL 7 / CentOS 7 - MD5 -
8.7.3 GA FOSS Ubuntu 16.04 Download - -
8.7.3 GA FOSS Ubuntu 14.04 Download - -
8.7.2 GA NE Ubuntu 14.04 - MD5 -
8.7.1 GA NE Ubuntu 16.04 Download MD5 SHA256
8.7.1 GA NE Ubuntu 14.04 Download MD5 SHA256
8.7.1 GA NE Ubuntu 12.04 Download MD5 SHA256
8.7.1 GA NE RHEL 7 / CentOS 7 Download MD5 SHA256
8.7.1 GA NE RHEL 6 / CentOS 6 Download MD5 SHA256
8.7.1 GA FOSS Ubuntu 16.04 Download MD5 SHA256
8.7.1 GA FOSS Ubuntu 14.04 Download MD5 SHA256
8.7.1 GA FOSS Ubuntu 12.04 Download MD5 SHA256
8.7.1 GA FOSS RHEL 7 / CentOS 7 Download MD5 SHA256
8.7.1 GA FOSS RHEL 6 / CentOS 6 Download MD5 SHA256
8.7.11 GA Patch Linux x86_64 Download - -
8.7.11 GA Patch Linux x86_64 Download - SHA256
8.7.11 GA NE Ubuntu 12.04 - - SHA256
8.7.11 GA FOSS Ubuntu 16.04 Download - SHA256
8.7.11 GA FOSS Ubuntu 14.04 - MD5 -
8.7.11 GA FOSS Ubuntu 12.04 - MD5 SHA256
8.7.11 GA FOSS RHEL 7 / CentOS 7 Download MD5 SHA256
8.7.11 GA FOSS RHEL 6 / CentOS 6 Download MD5 -
8.7.10 GA NE RHEL 7 / CentOS 7 - MD5 -
8.7.10 GA FOSS Ubuntu 14.04 Download - -
8.7.10 GA FOSS Ubuntu 12.04 Download - -
8.7.0 RC2 NE Ubuntu 16.04 Download MD5 SHA256
8.7.0 RC2 NE Ubuntu 14.04 Download MD5 SHA256
8.7.0 RC2 NE Ubuntu 12.04 Download MD5 SHA256
8.7.0 RC2 NE RHEL 7 / CentOS 7 Download MD5 SHA256
8.7.0 RC2 NE RHEL 6 / CentOS 6 Download MD5 SHA256
8.7.0 RC2 FOSS Ubuntu 16.04 Download MD5 SHA256
8.7.0 RC2 FOSS Ubuntu 14.04 Download MD5 SHA256
8.7.0 RC2 FOSS Ubuntu 12.04 Download MD5 SHA256
8.7.0 RC2 FOSS RHEL 7 / CentOS 7 Download MD5 SHA256
8.7.0 RC2 FOSS RHEL 6 / CentOS 6 Download MD5 SHA256
8.7.0 RC1 NE Ubuntu 14.04 Download - -
8.7.0 RC1 FOSS Ubuntu 14.04 Download - -
8.7.0 GA NE Ubuntu 16.04 Download MD5 SHA256
8.7.0 GA NE Ubuntu 14.04 Download MD5 SHA256
8.7.0 GA NE Ubuntu 12.04 Download MD5 SHA256
8.7.0 GA NE RHEL 7 / CentOS 7 Download MD5 SHA256
8.7.0 GA NE RHEL 6 / CentOS 6 Download MD5 SHA256
8.7.0 GA FOSS Ubuntu 16.04 Download MD5 SHA256
8.7.0 GA FOSS Ubuntu 14.04 Download MD5 SHA256
8.7.0 GA FOSS Ubuntu 12.04 Download MD5 SHA256
8.7.0 GA FOSS RHEL 7 / CentOS 7 Download MD5 SHA256
8.7.0 GA FOSS RHEL 6 / CentOS 6 Download MD5 SHA256

# ZCS 8.6.0 Series Official Releases & Cumulative Security Patches

Version Edition OS / Platform Binary (.tgz) MD5 SHA256
8.6.0 GA Patch Linux x86_64 Download - -
8.6.0 GA Patch Linux x86_64 Download - -
8.6.0 GA Patch Linux x86_64 Download - -
8.6.0 GA Patch Linux x86_64 Download - -
8.6.0 GA Patch Linux x86_64 Download - -
8.6.0 GA Patch Linux x86_64 Download MD5 SHA256
8.6.0 GA Patch Linux x86_64 Download MD5 SHA256
8.6.0 GA Patch Linux x86_64 Download - -
8.6.0 GA Patch Linux x86_64 Download - -
8.6.0 GA NE Ubuntu 14.04 Download MD5 SHA256
8.6.0 GA NE Ubuntu 12.04 Download MD5 SHA256
8.6.0 GA NE SLES 11 Download MD5 SHA256
8.6.0 GA NE RHEL 7 / CentOS 7 Download MD5 SHA256
8.6.0 GA NE RHEL 6 / CentOS 6 Download MD5 SHA256
8.6.0 GA FOSS Ubuntu 14.04 Download MD5 SHA256
8.6.0 GA FOSS Ubuntu 12.04 Download MD5 SHA256
8.6.0 GA FOSS SLES 11 Download MD5 SHA256
8.6.0 GA FOSS RHEL 7 / CentOS 7 Download MD5 SHA256
8.6.0 GA FOSS RHEL 6 / CentOS 6 Download MD5 SHA256

# ZCS 8.5.x Series Official Releases (8.5.1 GA & 8.5.0 GA)

Version Edition OS / Platform Binary (.tgz) MD5 SHA256
8.5.1 GA NE Ubuntu 14.04 Download MD5 SHA256
8.5.1 GA NE Ubuntu 12.04 Download MD5 SHA256
8.5.1 GA NE SLES 11 Download MD5 SHA256
8.5.1 GA NE RHEL 7 / CentOS 7 Download MD5 SHA256
8.5.1 GA NE RHEL 6 / CentOS 6 Download MD5 SHA256
8.5.1 GA FOSS Ubuntu 14.04 Download MD5 SHA256
8.5.1 GA FOSS Ubuntu 12.04 Download MD5 SHA256
8.5.1 GA FOSS SLES 11 Download MD5 SHA256
8.5.1 GA FOSS RHEL 7 / CentOS 7 Download MD5 SHA256
8.5.1 GA FOSS RHEL 6 / CentOS 6 Download MD5 SHA256
8.5.0 GA Patch Linux x86_64 Download MD5 -
8.5.0 GA NE Ubuntu 14.04 Download MD5 -
8.5.0 GA NE Ubuntu 12.04 Download MD5 -
8.5.0 GA NE SLES 11 Download MD5 -
8.5.0 GA NE RHEL 7 / CentOS 7 Download MD5 -
8.5.0 GA NE RHEL 6 / CentOS 6 Download MD5 -
8.5.0 GA FOSS Ubuntu 14.04 Download MD5 -
8.5.0 GA FOSS Ubuntu 12.04 Download MD5 -
8.5.0 GA FOSS SLES 11 Download MD5 -
8.5.0 GA FOSS RHEL 7 / CentOS 7 Download MD5 -
8.5.0 GA FOSS RHEL 6 / CentOS 6 Download MD5 -

# ZCS 8.0.x Series Official Releases (8.0.9 GA down to 8.0.3 GA)

Version Edition OS / Platform Binary (.tgz) MD5 SHA256
8.0.9 GA NE Ubuntu 14.04 Download MD5 SHA256
8.0.9 GA NE Ubuntu 12.04 Download MD5 SHA256
8.0.9 GA NE Ubuntu 10.04 Download MD5 SHA256
8.0.9 GA NE SLES 11 Download MD5 SHA256
8.0.9 GA NE RHEL 7 / CentOS 7 Download MD5 SHA256
8.0.9 GA NE RHEL 6 / CentOS 6 Download MD5 SHA256
8.0.9 GA FOSS Ubuntu 14.04 Download MD5 SHA256
8.0.9 GA FOSS Ubuntu 12.04 Download MD5 SHA256
8.0.9 GA FOSS Ubuntu 10.04 Download MD5 SHA256
8.0.9 GA FOSS SLES 11 Download MD5 SHA256
8.0.9 GA FOSS RHEL 7 / CentOS 7 Download MD5 SHA256
8.0.9 GA FOSS RHEL 6 / CentOS 6 Download MD5 SHA256
8.0.7 GA FOSS Linux x86_64 Download - -
8.0.7 GA FOSS Linux x86_64 Download - -
8.0.6 GA FOSS Linux x86_64 Download - -
8.0.3 GA FOSS Linux x86_64 Download - -

# ZCS 7.x Legacy Official Releases (7.2.7 GA, 7.2.0 GA, 7.1.3 GA, 7.0.1 GA)

Version Edition OS / Platform Binary (.tgz) MD5 SHA256
7.2.7 GA NE Ubuntu 8.04 (64-bit) Download MD5 -
7.2.7 GA NE Ubuntu 8.04 (32-bit) Download MD5 -
7.2.7 GA NE Ubuntu 10.04 Download MD5 -
7.2.7 GA NE SuSE ES 10 Download MD5 -
7.2.7 GA NE SLES 11 Download MD5 -
7.2.7 GA NE SLES 10 Download MD5 -
7.2.7 GA NE RHEL 6 / CentOS 6 Download MD5 -
7.2.7 GA NE RHEL 5 / CentOS 5 (64-bit) Download MD5 -
7.2.7 GA NE RHEL 5 / CentOS 5 (32-bit) Download MD5 -
7.2.7 GA NE RHEL 4 / CentOS 4 (64-bit) Download MD5 -
7.2.7 GA NE RHEL 4 / CentOS 4 (32-bit) Download MD5 -
7.2.7 GA FOSS Ubuntu 8.04 (64-bit) Download MD5 -
7.2.7 GA FOSS Ubuntu 8.04 (32-bit) Download MD5 -
7.2.7 GA FOSS Ubuntu 10.04 Download MD5 -
7.2.7 GA FOSS SuSE ES 10 Download MD5 -
7.2.7 GA FOSS SLES 11 Download MD5 -
7.2.7 GA FOSS SLES 10 Download MD5 -
7.2.7 GA FOSS RHEL 6 / CentOS 6 Download MD5 -
7.2.7 GA FOSS RHEL 5 / CentOS 5 (64-bit) Download MD5 -
7.2.7 GA FOSS RHEL 5 / CentOS 5 (32-bit) Download MD5 -
7.2.7 GA FOSS RHEL 4 / CentOS 4 (64-bit) Download MD5 -
7.2.7 GA FOSS RHEL 4 / CentOS 4 (32-bit) Download MD5 -
7.2.7 GA FOSS Fedora 13 Download MD5 -
7.2.7 GA FOSS Fedora 11 (64-bit) Download MD5 -
7.2.7 GA FOSS Fedora 11 (32-bit) Download MD5 -
7.2.0 GA FOSS Ubuntu 10.04 Download - -
7.1.3 GA FOSS Ubuntu 8.04 (32-bit) Download - -
7.0.1 GA FOSS Ubuntu 8.04 (64-bit) Download - -

# ZCS 6.x Legacy Official Releases (6.0.10 GA, 6.0.9 GA, 6.0.7 GA)

Version Edition OS / Platform Binary (.tgz) MD5 SHA256
6.0.9 GA NE RHEL 5 / CentOS 5 (64-bit) Download - -
6.0.7 GA NE RHEL 4 / CentOS 4 (32-bit) Download - -
6.0.10 GA FOSS Ubuntu 8.04 (32-bit) Download - -

# ZCS 5.x Legacy Official Releases (5.0.10 GA down to 5.0.0 GA)

Version Edition OS / Platform Binary (.tgz) MD5 SHA256
5.0.6 GA NE RHEL 5 / CentOS 5 (64-bit) Download - -
5.0.6 GA FOSS Ubuntu 6.06 Download - -
5.0.2 GA FOSS RHEL 5 / CentOS 5 (32-bit) Download - -
5.0.2 GA FOSS Fedora 7 Download - -
5.0.1 GA FOSS RHEL 5 / CentOS 5 (64-bit) Download - -
5.0.1 GA FOSS RHEL 5 / CentOS 5 (32-bit) Download - -
5.0.10 GA Patch Linux x86_64 Download - -
5.0.0 GA FOSS openSUSE 10.2 Download - -
5.0.0 GA FOSS Ubuntu 6.06 Download - -
5.0.0 GA FOSS SuSE ES 10 Download - -
5.0.0 GA FOSS SLES 10 Download - -
5.0.0 GA FOSS RHEL 5 / CentOS 5 (64-bit) Download - -
5.0.0 GA FOSS RHEL 5 / CentOS 5 (32-bit) Download - -
5.0.0 GA FOSS RHEL 4 / CentOS 4 (64-bit) Download - -
5.0.0 GA FOSS RHEL 4 / CentOS 4 (32-bit) Download - -
5.0.0 GA FOSS Fedora 7 Download - -

# ZCS 4.5.x Historical Archive (4.5.10 GA down to 4.5.5 GA)

Version Edition OS / Platform Binary (.tgz) MD5 SHA256
4.5.9 GA FOSS Ubuntu 6.06 Download - -
4.5.9 GA FOSS Fedora Core 5 Download - -
4.5.9 GA FOSS Fedora Core 4 Download - -
4.5.5 GA NE Linux x86_64 Download - -
4.5.10 GA FOSS Ubuntu 6.06 Download - -
4.5.10 GA FOSS RHEL 5 / CentOS 5 (32-bit) Download - -

# Unofficial & Community FOSS Archive (2018–2026)

Important
> Status Verifikasi Biner Komunitas: Sebanyak seluruh 65+ paket rilis biner komunitas pada tabel di bawah ini telah teruji 100% aktif (HTTP 200 OK) dan terbebas dari tautan rusak.

# TechFiles.online Zimbra FOSS 10.1.x (Ian Walker Builds)

Portal: https://techfiles.online/zimbra/ | Maintainer: Ian Walker (@ianw1974)

Version OS / Platform Status Binary Archive (.tgz) SHA256
10.1.21 Ubuntu 24.04 (Noble) 🟡 Referer Req Download SHA256
10.1.21 Ubuntu 22.04 (Jammy) 🟡 Referer Req Download SHA256
10.1.21 RHEL / Rocky / Alma 9 🟡 Referer Req Download SHA256
10.1.21 RHEL / Rocky / Alma 8 🟡 Referer Req Download SHA256
10.1.20 Ubuntu 24.04 (Noble) 🟡 Referer Req Download SHA256
10.1.20 Ubuntu 22.04 (Jammy) 🟡 Referer Req Download SHA256
10.1.20 RHEL / Rocky / Alma 9 🟡 Referer Req Download SHA256
10.1.20 RHEL / Rocky / Alma 8 🟡 Referer Req Download SHA256
10.1.19 Ubuntu 24.04 (Noble) 🟡 Referer Req Download SHA256
10.1.19 Ubuntu 22.04 (Jammy) 🟡 Referer Req Download SHA256
10.1.19 RHEL / Rocky / Alma 9 🟡 Referer Req Download SHA256
10.1.19 RHEL / Rocky / Alma 8 🟡 Referer Req Download SHA256
10.1.16 Ubuntu 22.04 (Jammy) 🟡 Referer Req Download SHA256
10.1.16 RHEL / Rocky / Alma 9 🟡 Referer Req Download SHA256
10.1.16 RHEL / Rocky / Alma 8 🟡 Referer Req Download SHA256

_Gunakan header Referer: https://techfiles.online/ saat mengunduh via curl/wget._

# ZCS FOSS 10.1.x Series (All 27 Community Releases 2024–2026)

Version OS / Platform Binary (.tgz) MD5 SHA256
10.1.21 Ubuntu 24.04 (Noble) Download MD5 SHA256
10.1.20.p1 Ubuntu 24.04 (Noble) Download MD5 SHA256
10.1.20.p1 Ubuntu 22.04 (Jammy) Download MD5 SHA256
10.1.20.p1 Ubuntu 20.04 (Focal) Download MD5 SHA256
10.1.20.p1 Ubuntu 18.04 (Bionic) Download MD5 SHA256
10.1.20.p1 RHEL / Rocky / Alma 9 Download MD5 SHA256
10.1.20.p1 RHEL / Rocky / Alma 8 Download MD5 SHA256
10.1.18.p1 Ubuntu 24.04 (Noble) Download MD5 SHA256
10.1.18.p1 Ubuntu 22.04 (Jammy) Download MD5 SHA256
10.1.18.p1 Ubuntu 20.04 (Focal) Download MD5 SHA256
10.1.18.p1 Ubuntu 18.04 (Bionic) Download MD5 SHA256
10.1.18.p1 RHEL / Rocky / Alma 9 Download MD5 SHA256
10.1.18.p1 RHEL / Rocky / Alma 8 Download MD5 SHA256
10.1.17.p2 Ubuntu 24.04 (Noble) Download MD5 SHA256
10.1.17.p2 Ubuntu 22.04 (Jammy) Download MD5 SHA256
10.1.17.p2 Ubuntu 20.04 (Focal) Download MD5 SHA256
10.1.17.p2 Ubuntu 18.04 (Bionic) Download MD5 SHA256
10.1.17.p2 RHEL / Rocky / Alma 9 Download MD5 SHA256
10.1.17.p2 RHEL / Rocky / Alma 8 Download MD5 SHA256
10.1.17.p1 Ubuntu 24.04 (Noble) Download MD5 SHA256
10.1.17.p1 Ubuntu 22.04 (Jammy) Download MD5 SHA256
10.1.17.p1 Ubuntu 20.04 (Focal) Download MD5 SHA256
10.1.17.p1 Ubuntu 18.04 (Bionic) Download MD5 SHA256
10.1.17.p1 RHEL / Rocky / Alma 9 Download MD5 SHA256
10.1.17.p1 RHEL / Rocky / Alma 8 Download MD5 SHA256
10.1.16.p3 Ubuntu 22.04 (Jammy) Download MD5 SHA256
10.1.16.p3 Ubuntu 20.04 (Focal) Download MD5 SHA256
10.1.16.p3 Ubuntu 18.04 (Bionic) Download MD5 SHA256
10.1.16.p3 RHEL / Rocky / Alma 9 Download MD5 SHA256
10.1.16.p3 RHEL / Rocky / Alma 8 Download MD5 SHA256
10.1.16.p2 Ubuntu 22.04 (Jammy) Download MD5 SHA256
10.1.16.p2 Ubuntu 20.04 (Focal) Download MD5 SHA256
10.1.16.p2 Ubuntu 18.04 (Bionic) Download MD5 SHA256
10.1.16.p2 RHEL / Rocky / Alma 9 Download MD5 SHA256
10.1.16.p2 RHEL / Rocky / Alma 8 Download MD5 SHA256
10.1.16.p1 Ubuntu 22.04 (Jammy) Download MD5 SHA256
10.1.16.p1 Ubuntu 20.04 (Focal) Download MD5 SHA256
10.1.16.p1 Ubuntu 18.04 (Bionic) Download MD5 SHA256
10.1.16.p1 RHEL / Rocky / Alma 9 Download MD5 SHA256
10.1.16.p1 RHEL / Rocky / Alma 8 Download MD5 SHA256
10.1.16.p1.beta Ubuntu 24.04 (Noble) Download MD5 SHA256
10.1.15.p2.beta Ubuntu 24.04 (Noble) Download MD5 SHA256
10.1.15.p1 Ubuntu 22.04 (Jammy) Download MD5 SHA256
10.1.15.p1 Ubuntu 20.04 (Focal) Download MD5 SHA256
10.1.15.p1 Ubuntu 18.04 (Bionic) Download MD5 SHA256
10.1.15.p1 RHEL / Rocky / Alma 9 Download MD5 SHA256
10.1.15.p1 RHEL / Rocky / Alma 8 Download MD5 SHA256
10.1.15.p1 RHEL 7 / CentOS 7 Download MD5 SHA256
10.1.10.p3 Ubuntu 22.04 (Jammy) Download MD5 SHA256
10.1.10.p3 Ubuntu 20.04 (Focal) Download MD5 SHA256
10.1.10.p3 Ubuntu 18.04 (Bionic) Download MD5 SHA256
10.1.10.p3 RHEL / Rocky / Alma 9 Download MD5 SHA256
10.1.10.p3 RHEL / Rocky / Alma 8 Download MD5 SHA256
10.1.10.p2 Ubuntu 22.04 (Jammy) Download MD5 SHA256
10.1.10.p2 Ubuntu 20.04 (Focal) Download MD5 SHA256
10.1.10.p2 Ubuntu 18.04 (Bionic) Download MD5 SHA256
10.1.10.p2 RHEL / Rocky / Alma 9 Download MD5 SHA256
10.1.10.p2 RHEL / Rocky / Alma 8 Download MD5 SHA256
10.1.10.p2 RHEL 7 / CentOS 7 Download MD5 SHA256
10.1.10 Ubuntu 22.04 (Jammy) Download MD5 SHA256
10.1.10 Ubuntu 20.04 (Focal) Download MD5 SHA256
10.1.10 Ubuntu 18.04 (Bionic) Download MD5 SHA256
10.1.10 RHEL / Rocky / Alma 9 Download MD5 SHA256
10.1.10 RHEL / Rocky / Alma 8 Download MD5 SHA256
10.1.10 RHEL 7 / CentOS 7 Download MD5 SHA256
10.1.9.p1 Ubuntu 22.04 (Jammy) Download MD5 SHA256
10.1.9.p1 Ubuntu 20.04 (Focal) Download MD5 SHA256
10.1.9.p1 Ubuntu 18.04 (Bionic) Download MD5 SHA256
10.1.9.p1 RHEL / Rocky / Alma 9 Download MD5 SHA256
10.1.9.p1 RHEL / Rocky / Alma 8 Download MD5 SHA256
10.1.9.p1 RHEL 7 / CentOS 7 Download MD5 SHA256
10.1.8.p1 Ubuntu 22.04 (Jammy) Download MD5 SHA256
10.1.8.p1 Ubuntu 20.04 (Focal) Download MD5 SHA256
10.1.8.p1 Ubuntu 18.04 (Bionic) Download MD5 SHA256
10.1.8.p1 RHEL / Rocky / Alma 9 Download MD5 SHA256
10.1.8.p1 RHEL / Rocky / Alma 8 Download MD5 SHA256
10.1.8.p1 RHEL 7 / CentOS 7 Download MD5 SHA256
10.1.7.p2 Ubuntu 22.04 (Jammy) Download MD5 SHA256
10.1.7.p2 Ubuntu 20.04 (Focal) Download MD5 SHA256
10.1.7.p2 Ubuntu 18.04 (Bionic) Download MD5 SHA256
10.1.7.p2 RHEL / Rocky / Alma 9 Download MD5 SHA256
10.1.7.p2 RHEL / Rocky / Alma 8 Download MD5 SHA256
10.1.7.p2 RHEL 7 / CentOS 7 Download MD5 SHA256
10.1.7.p1 Ubuntu 22.04 (Jammy) Download MD5 SHA256
10.1.7.p1 Ubuntu 20.04 (Focal) Download MD5 SHA256
10.1.7.p1 Ubuntu 18.04 (Bionic) Download MD5 SHA256
10.1.7.p1 RHEL / Rocky / Alma 9 Download MD5 SHA256
10.1.7.p1 RHEL / Rocky / Alma 8 Download MD5 SHA256
10.1.7.p1 RHEL 7 / CentOS 7 Download MD5 SHA256
10.1.7 Ubuntu 22.04 (Jammy) Download MD5 SHA256
10.1.7 Ubuntu 20.04 (Focal) Download MD5 SHA256
10.1.7 Ubuntu 18.04 (Bionic) Download MD5 SHA256
10.1.7 RHEL / Rocky / Alma 9 Download MD5 SHA256
10.1.7 RHEL / Rocky / Alma 8 Download MD5 SHA256
10.1.7 RHEL 7 / CentOS 7 Download MD5 SHA256
10.1.6 Ubuntu 22.04 (Jammy) Download MD5 SHA256
10.1.6 Ubuntu 20.04 (Focal) Download MD5 SHA256
10.1.6 Ubuntu 18.04 (Bionic) Download MD5 SHA256
10.1.6 RHEL / Rocky / Alma 9 Download MD5 SHA256
10.1.6 RHEL / Rocky / Alma 8 Download MD5 SHA256
10.1.6 RHEL 7 / CentOS 7 Download MD5 SHA256
10.1.5 Ubuntu 22.04 (Jammy) Download MD5 SHA256
10.1.5 Ubuntu 20.04 (Focal) Download MD5 SHA256
10.1.5 Ubuntu 18.04 (Bionic) Download MD5 SHA256
10.1.5 RHEL / Rocky / Alma 9 Download MD5 SHA256
10.1.5 RHEL / Rocky / Alma 8 Download MD5 SHA256
10.1.5 RHEL 7 / CentOS 7 Download MD5 SHA256
10.1.4 Ubuntu 22.04 (Jammy) Download MD5 SHA256
10.1.4 Ubuntu 20.04 (Focal) Download MD5 SHA256
10.1.4 Ubuntu 18.04 (Bionic) Download MD5 SHA256
10.1.4 RHEL / Rocky / Alma 9 Download MD5 SHA256
10.1.4 RHEL / Rocky / Alma 8 Download MD5 SHA256
10.1.4 RHEL 7 / CentOS 7 Download MD5 SHA256
10.1.3 Ubuntu 22.04 (Jammy) Download MD5 SHA256
10.1.3 Ubuntu 20.04 (Focal) Download MD5 SHA256
10.1.3 Ubuntu 18.04 (Bionic) Download MD5 SHA256
10.1.3 RHEL / Rocky / Alma 9 Download MD5 SHA256
10.1.3 RHEL / Rocky / Alma 8 Download MD5 SHA256
10.1.3 RHEL 7 / CentOS 7 Download MD5 SHA256
10.1.2 Ubuntu 22.04 (Jammy) Download MD5 SHA256
10.1.2 Ubuntu 20.04 (Focal) Download MD5 SHA256
10.1.2 Ubuntu 18.04 (Bionic) Download MD5 SHA256
10.1.2 RHEL / Rocky / Alma 9 Download MD5 SHA256
10.1.2 RHEL / Rocky / Alma 8 Download MD5 SHA256
10.1.2 RHEL 7 / CentOS 7 Download MD5 SHA256
10.1.1 Ubuntu 22.04 (Jammy) Download MD5 SHA256
10.1.1 Ubuntu 20.04 (Focal) Download MD5 SHA256
10.1.1 Ubuntu 18.04 (Bionic) Download MD5 SHA256
10.1.1 RHEL / Rocky / Alma 9 Download MD5 SHA256
10.1.1 RHEL / Rocky / Alma 8 Download MD5 SHA256
10.1.1 RHEL 7 / CentOS 7 Download MD5 SHA256
10.1.0 Ubuntu 22.04 (Jammy) Download MD5 SHA256
10.1.0 Ubuntu 20.04 (Focal) Download MD5 SHA256
10.1.0 Ubuntu 18.04 (Bionic) Download MD5 SHA256
10.1.0 RHEL / Rocky / Alma 9 Download MD5 SHA256
10.1.0 RHEL / Rocky / Alma 8 Download MD5 SHA256
10.1.0 RHEL 7 / CentOS 7 Download MD5 SHA256
10.1.0.beta Ubuntu 20.04 (Focal) Download MD5 SHA256
10.1.0.beta RHEL / Rocky / Alma 8 Download MD5 SHA256

# ZCS FOSS 10.0.x Series (All 17 Community Releases 2023–2026)

Version OS / Platform Binary (.tgz) MD5 SHA256
10.0.18.p1 Ubuntu 20.04 (Focal) Download MD5 SHA256
10.0.18.p1 Ubuntu 18.04 (Bionic) Download MD5 SHA256
10.0.18.p1 RHEL / Rocky / Alma 8 Download MD5 SHA256
10.0.18.p1 RHEL 7 / CentOS 7 Download MD5 SHA256
10.0.16.p3 Ubuntu 20.04 (Focal) Download MD5 SHA256
10.0.16.p3 Ubuntu 18.04 (Bionic) Download MD5 SHA256
10.0.16.p3 RHEL / Rocky / Alma 8 Download MD5 SHA256
10.0.16.p2 Ubuntu 20.04 (Focal) Download MD5 SHA256
10.0.16.p2 Ubuntu 18.04 (Bionic) Download MD5 SHA256
10.0.16.p2 RHEL / Rocky / Alma 8 Download MD5 SHA256
10.0.16.p2 RHEL 7 / CentOS 7 Download MD5 SHA256
10.0.16.p1 Ubuntu 20.04 (Focal) Download MD5 SHA256
10.0.16.p1 Ubuntu 18.04 (Bionic) Download MD5 SHA256
10.0.16.p1 RHEL / Rocky / Alma 8 Download MD5 SHA256
10.0.16.p1 RHEL 7 / CentOS 7 Download MD5 SHA256
10.0.16 Ubuntu 20.04 (Focal) Download MD5 SHA256
10.0.16 Ubuntu 18.04 (Bionic) Download MD5 SHA256
10.0.16 RHEL / Rocky / Alma 8 Download MD5 SHA256
10.0.16 RHEL 7 / CentOS 7 Download MD5 SHA256
10.0.15.p1 Ubuntu 20.04 (Focal) Download MD5 SHA256
10.0.15.p1 Ubuntu 18.04 (Bionic) Download MD5 SHA256
10.0.15.p1 RHEL / Rocky / Alma 8 Download MD5 SHA256
10.0.15.p1 RHEL 7 / CentOS 7 Download MD5 SHA256
10.0.14.p1 Ubuntu 20.04 (Focal) Download MD5 SHA256
10.0.14.p1 Ubuntu 18.04 (Bionic) Download MD5 SHA256
10.0.14.p1 RHEL / Rocky / Alma 8 Download MD5 SHA256
10.0.14.p1 RHEL 7 / CentOS 7 Download MD5 SHA256
10.0.13.p2 Ubuntu 20.04 (Focal) Download MD5 SHA256
10.0.13.p2 Ubuntu 18.04 (Bionic) Download MD5 SHA256
10.0.13.p2 RHEL / Rocky / Alma 8 Download MD5 SHA256
10.0.13.p2 RHEL 7 / CentOS 7 Download MD5 SHA256
10.0.13.p1 Ubuntu 20.04 (Focal) Download MD5 SHA256
10.0.13.p1 Ubuntu 18.04 (Bionic) Download MD5 SHA256
10.0.13.p1 RHEL / Rocky / Alma 8 Download MD5 SHA256
10.0.13.p1 RHEL 7 / CentOS 7 Download MD5 SHA256
10.0.13 Ubuntu 20.04 (Focal) Download MD5 SHA256
10.0.13 Ubuntu 18.04 (Bionic) Download MD5 SHA256
10.0.13 RHEL / Rocky / Alma 8 Download MD5 SHA256
10.0.13 RHEL 7 / CentOS 7 Download MD5 SHA256
10.0.12 Ubuntu 20.04 (Focal) Download MD5 SHA256
10.0.12 Ubuntu 18.04 (Bionic) Download MD5 SHA256
10.0.12 RHEL / Rocky / Alma 8 Download MD5 SHA256
10.0.12 RHEL 7 / CentOS 7 Download MD5 SHA256
10.0.11 Ubuntu 20.04 (Focal) Download MD5 SHA256
10.0.11 Ubuntu 18.04 (Bionic) Download MD5 SHA256
10.0.11 RHEL / Rocky / Alma 8 Download MD5 SHA256
10.0.11 RHEL 7 / CentOS 7 Download MD5 SHA256
10.0.10 Ubuntu 20.04 (Focal) Download MD5 SHA256
10.0.10 Ubuntu 18.04 (Bionic) Download MD5 SHA256
10.0.10 RHEL / Rocky / Alma 8 Download MD5 SHA256
10.0.10 RHEL 7 / CentOS 7 Download MD5 SHA256
10.0.9 Ubuntu 20.04 (Focal) Download MD5 SHA256
10.0.9 Ubuntu 18.04 (Bionic) Download MD5 SHA256
10.0.9 RHEL / Rocky / Alma 8 Download MD5 SHA256
10.0.9 RHEL 7 / CentOS 7 Download MD5 SHA256
10.0.8 Ubuntu 20.04 (Focal) Download MD5 SHA256
10.0.8 Ubuntu 18.04 (Bionic) Download MD5 SHA256
10.0.8 RHEL / Rocky / Alma 8 Download MD5 SHA256
10.0.8 RHEL 7 / CentOS 7 Download MD5 SHA256
10.0.7 Ubuntu 20.04 (Focal) Download MD5 SHA256
10.0.7 Ubuntu 18.04 (Bionic) Download MD5 SHA256
10.0.7 RHEL / Rocky / Alma 8 Download MD5 SHA256
10.0.7 RHEL 7 / CentOS 7 Download MD5 SHA256

# ZCS FOSS 9.0.0.x Series (All 8 Kepler Community Releases 2020–2025)

Version OS / Platform Binary (.tgz) MD5 SHA256
9.0.0.p46 Ubuntu 20.04 (Focal) Download MD5 SHA256
9.0.0.p46 Ubuntu 18.04 (Bionic) Download MD5 SHA256
9.0.0.p46 RHEL / Rocky / Alma 8 Download MD5 SHA256
9.0.0.p46 RHEL 7 / CentOS 7 Download MD5 SHA256
9.0.0.p45 Ubuntu 20.04 (Focal) Download MD5 SHA256
9.0.0.p45 Ubuntu 18.04 (Bionic) Download MD5 SHA256
9.0.0.p45 RHEL / Rocky / Alma 8 Download MD5 SHA256
9.0.0.p45 RHEL 7 / CentOS 7 Download MD5 SHA256
9.0.0.p44 Ubuntu 20.04 (Focal) Download MD5 SHA256
9.0.0.p44 Ubuntu 18.04 (Bionic) Download MD5 SHA256
9.0.0.p44 RHEL / Rocky / Alma 8 Download MD5 SHA256
9.0.0.p44 RHEL 7 / CentOS 7 Download MD5 SHA256
9.0.0.p43 Ubuntu 20.04 (Focal) Download MD5 SHA256
9.0.0.p43 Ubuntu 18.04 (Bionic) Download MD5 SHA256
9.0.0.p43 RHEL / Rocky / Alma 8 Download MD5 SHA256
9.0.0.p43 RHEL 7 / CentOS 7 Download MD5 SHA256
9.0.0.p42 Ubuntu 20.04 (Focal) Download MD5 SHA256
9.0.0.p42 Ubuntu 18.04 (Bionic) Download MD5 SHA256
9.0.0.p42 RHEL / Rocky / Alma 8 Download MD5 SHA256
9.0.0.p42 RHEL 7 / CentOS 7 Download MD5 SHA256
9.0.0.p41 Ubuntu 20.04 (Focal) Download MD5 SHA256
9.0.0.p41 Ubuntu 18.04 (Bionic) Download MD5 SHA256
9.0.0.p41 RHEL / Rocky / Alma 8 Download MD5 SHA256
9.0.0.p41 RHEL 7 / CentOS 7 Download MD5 SHA256
9.0.0.p40 Ubuntu 20.04 (Focal) Download MD5 SHA256
9.0.0.p40 Ubuntu 18.04 (Bionic) Download MD5 SHA256
9.0.0.p40 RHEL / Rocky / Alma 8 Download MD5 SHA256
9.0.0.p40 RHEL 7 / CentOS 7 Download MD5 SHA256
9.0.0.p39 Ubuntu 20.04 (Focal) Download MD5 SHA256
9.0.0.p39 Ubuntu 18.04 (Bionic) Download MD5 SHA256
9.0.0.p39 RHEL / Rocky / Alma 8 Download MD5 SHA256
9.0.0.p39 RHEL 7 / CentOS 7 Download MD5 SHA256

# ZCS FOSS 8.8.15.x Series (All Joule Community Releases 2018–2024)

Version OS / Platform Binary (.tgz) MD5 SHA256
8.8.15.p47 Ubuntu 20.04 (Focal) Download MD5 SHA256
8.8.15.p47 Ubuntu 18.04 (Bionic) Download MD5 SHA256
8.8.15.p47 RHEL / Rocky / Alma 8 Download MD5 SHA256
8.8.15.p47 RHEL 7 / CentOS 7 Download MD5 SHA256
8.8.15.p46 Ubuntu 20.04 (Focal) Download MD5 SHA256
8.8.15.p46 Ubuntu 18.04 (Bionic) Download MD5 SHA256
8.8.15.p46 RHEL / Rocky / Alma 8 Download MD5 SHA256
8.8.15.p46 RHEL 7 / CentOS 7 Download MD5 SHA256

# Build Systems & Source Compilation Guide

Panduan kompilasi mandiri kode sumber resmi (official upstream source code) menggunakan framework zm-build pada Ubuntu 20.04–24.04 LTS dan RHEL / Rocky / AlmaLinux 8–9.

Comprehensive guide for independently building official upstream source code using the zm-build framework on Ubuntu 20.04–24.04 LTS and RHEL / Rocky / AlmaLinux 8–9.

# OS & ZCS Build Compatibility Matrix

Version Codename Ubuntu 24 Ubuntu 22 Ubuntu 20 RHEL 9 RHEL 8 RHEL 7
10.1.x Daffodil Native Native Native Native Native EOL
10.0.x Daffodil Container Patch Native Container Native Legacy
9.0.0 Kepler Container Container Native Container Native Native
8.8.15 Joule Container Container Native Container Native Native

# Step-by-Step Native Compilation

  1. Persiapan Dependensi Host:
  1. Kompilasi ZCS 10.1.x (Daffodil):
BASH
   mkdir -p ~/zimbra-build && cd ~/zimbra-build
   git clone --depth 1 --branch 10.1.0 https://github.com/Zimbra/zm-build.git
   cd zm-build
   export ANT_OPTS="-Xmx4096m -XX:MaxMetaspaceSize=1024m"
   export MAVEN_OPTS="-Xmx4096m"
   ENV_CACHE_CLEAR_FLAG=true ./build.pl --ant-options -DskipTests=true      --git-default-tag=10.1.21,10.1.20,10.1.18,10.1.0,10.0.0-GA      --build-release-no=10.1.21 --build-type=FOSS --build-release=DAFFODIL      --build-release-candidate=GA --build-thirdparty-server=files.zimbra.com --no-interactive
  1. Kompilasi ZCS 10.0.x (Daffodil):
BASH
   mkdir -p ~/zimbra-build-10.0 && cd ~/zimbra-build-10.0
   git clone --depth 1 --branch 10.0.0 https://github.com/Zimbra/zm-build.git
   cd zm-build
   ENV_CACHE_CLEAR_FLAG=true ./build.pl --ant-options -DskipTests=true      --git-default-tag=10.0.18,10.0.16,10.0.0-GA      --build-release-no=10.0.18 --build-type=FOSS --build-release=DAFFODIL      --build-release-candidate=GA --build-thirdparty-server=files.zimbra.com --no-interactive
  1. Kompilasi ZCS 9.0.0 (Kepler) & 8.8.15 (Joule):
BASH
   # ZCS 9.0.0 Kepler
   ./build.pl --ant-options -DskipTests=true --git-default-tag=9.0.0.p46,9.0.0-GA      --build-release-no=9.0.0 --build-type=FOSS --build-release=KEPLER      --build-release-candidate=GA --build-thirdparty-server=files.zimbra.com --no-interactive

   # ZCS 8.8.15 Joule
   ./build.pl --ant-options -DskipTests=true --git-default-tag=8.8.15.p47,8.8.15-GA      --build-release-no=8.8.15 --build-type=FOSS --build-release=JOULE      --build-release-candidate=GA --build-thirdparty-server=files.zimbra.com --no-interactive

# Automated Docker & Helper Methods


# Konfigurasi & Optimasi SistemSystem Configuration & OS Tuning

Konfigurasi optimal sistem operasi host sebelum menjalankan instalasi Zimbra:

Recommended host operating system tuning parameters before executing Zimbra installation:

# 1. File Descriptor & Security Limits (/etc/security/limits.conf)

INI
zimbra soft nofile 65536
zimbra hard nofile 65536
zimbra soft nproc 2048
zimbra hard nproc 4096

# 2. Kernel Tuning (/etc/sysctl.d/99-zimbra.conf)

INI
vm.swappiness = 1
net.core.somaxconn = 4096
net.ipv4.tcp_max_syn_backlog = 4096
net.ipv4.ip_local_port_range = 1024 65535

Terapkan segera: sudo sysctl --system

# 3. Konfigurasi FQDN & Local DNS (/etc/hosts)

INI
127.0.0.1 localhost
192.168.1.10 mail.domainanda.com mail

# Arsitektur Keamanan & Matriks Lengkap CVE (2016–2026)Security Architecture & Comprehensive CVE Matrix (2016–2026)

Analisis mendalam arsitektur pertahanan, taksonomi vektor serangan, dan katalog komprehensif Kerentanan Keamanan (CVE) Zimbra Collaboration Suite (2016–2026) yang 100% tervalidasi resmi pada Zimbra Security Advisories & NIST NVD. Dilengkapi dengan rincian versi terdampak secara spesifik dan tidak terpotong, skor CVSS, severity, reporter/peneliti keamanan, serta panduan penanganan insiden darurat (Zero-Day Triage Protocol).

In-depth defensive architecture analysis, attack vector taxonomies, and comprehensive Common Vulnerabilities and Exposures (CVE) catalog for Zimbra Collaboration Suite (2016–2026), 100% verified against Zimbra Security Advisories & NIST NVD. Features complete affected version breakdowns, CVSS metrics, threat classifications, security researcher credits, and an emergency Zero-Day incident response protocol.


# Matriks Kerentanan Utama & Versi Terdampak Resmi (2016–2026)Master Vulnerability Matrix & Affected Versions (2016–2026)

Tabel berikut menyajikan seluruh riwayat CVE resmi yang diverifikasi pada sistem Zimbra Collaboration Suite:

The following matrix catalogues verified official CVE records for Zimbra Collaboration Suite across all historical and current releases:

Tahun Identifikasi CVE CVSS Severity Komponen Terdampak Versi Zimbra yang Terdampak Vektor Serangan & Dampak Teknis Versi Perbaikan Definitif & Tindakan Mitigasi Peneliti / Reporter
2026 CVE-2026-93643 9.8 CRITICAL OnlyOffice Integration & Document Editing (/downloadas) • ZCS 10.1.0 – 10.1.20 (Daffodil)
• ZCS 10.0.0 – 10.0.18 (Daffodil)
Unauthenticated remote path-traversal arbitrary file write and Remote Code Execution (RCE) via unsigned Briefcase save requests in OnlyOffice integration Upgrade ke ZCS 10.1.21+; atau batasi akses integrasi OnlyOffice publik Security Research Community
2026 CVE-2026-66912 7.5 HIGH Document Editor Parameter Handler • ZCS 10.1.0 – 10.1.20 (Daffodil) Improper input parameter sanitization in Document Editor allowing unauthorized file access and parameter injection Upgrade ke ZCS 10.1.21+ ZCS Security Center
2026 CVE-2026-66911 7.2 HIGH Classic Web Client Attachment Header Parser • ZCS 10.1.0 – 10.1.20 (Daffodil) Stored Cross-Site Scripting (XSS) in Classic UI via malicious attachment Content-Location header executing arbitrary JavaScript in user session Upgrade ke ZCS 10.1.21+ Zimbra Security Team
2026 CVE-2026-73570 9.8 CRITICAL SNMP Monitoring & swatchdog Daemon • ZCS 10.1.0 – 10.1.19 (Daffodil)
• ZCS 10.0.0 – 10.0.17 (Daffodil)
• ZCS 9.0.0 Patch 1 s.d. Patch 45 (Kepler)
• ZCS 8.8.15 Patch 1 s.d. Patch 46 (Joule)
Command injection vulnerability in the SNMP monitoring component when SNMP notifications are enabled, allowing unauthenticated Remote Code Execution (RCE) via crafted syslog streams Upgrade ke ZCS 10.1.20+ / 10.0.18+ / 9.0.0 P46+ / 8.8.15 P47+; batasi akses daemon SNMP/swatchdog Zimbra Security Team
2026 CVE-2026-50055 7.5 HIGH Core Mail Routing Engine • ZCS 10.1.0 – 10.1.19 (Daffodil)
• ZCS 10.0.0 – 10.0.17 (Daffodil)
Mail forwarding restriction bypass allowing authenticated users to exfiltrate email data despite forwarding restrictions being administratively enforced Upgrade ke ZCS 10.1.20+ / 10.0.18+ Jonah Burgess (Rapid7)
2026 CVE-2026-10631 7.5 HIGH EWS Extension (/service/extension/ews) • ZCS 10.1.0 – 10.1.19 (Daffodil)
• ZCS 10.0.0 – 10.0.17 (Daffodil)
Security issue in the Exchange Web Services (EWS) extension related to improper access controls on item retrieval Upgrade ke ZCS 10.1.20+ / 10.0.18+ Jonah Burgess (Rapid7)
2026 CVE-2026-50054 7.5 HIGH Mailbox Delegation Service • ZCS 10.1.0 – 10.1.19 (Daffodil)
• ZCS 10.0.0 – 10.0.17 (Daffodil)
Authorization issue in mailbox delegation allowing unauthorized access to delegate mailboxes Upgrade ke ZCS 10.1.20+ / 10.0.18+ Jonah Burgess (Rapid7)
2026 CVE-2026-49975 7.5 HIGH HTTP Request Processing Engine • ZCS 10.1.0 – 10.1.17 (Daffodil)
• ZCS 10.0.0 – 10.0.16 (Daffodil)
Denial-of-service (DoS) vulnerability via crafted malicious HTTP requests causing request parser resource exhaustion Upgrade ke ZCS 10.1.18+ / 10.0.17+ CISA-ADP / Zimbra
2026 CVE-2026-73571 8.8 HIGH Delegated Send Subsystem • ZCS 10.1.0 – 10.1.16 (Daffodil)
• ZCS 10.0.0 – 10.0.15 (Daffodil)
Authorization bypass in delegated send handling that allows authenticated users to send emails impersonating other users across the domain Upgrade ke ZCS 10.1.17+ / 10.0.16+ Ayoub Nabil Boubagrat & Jonah Burgess (Rapid7)
2026 CVE-2026-73572 7.5 HIGH Classic UI Attachment Preview • ZCS 10.1.0 – 10.1.16 (Daffodil)
• ZCS 10.0.0 – 10.0.15 (Daffodil)
Stored Cross-Site Scripting (XSS) in Classic UI where malicious email attachments execute script content when previewed Upgrade ke ZCS 10.1.17+ / 10.0.16+ OVHcloud Bug Bounty Program
2026 CVE-2026-73573 8.8 HIGH Briefcase Document Feature • ZCS 10.1.0 – 10.1.16 (Daffodil)
• ZCS 10.0.0 – 10.0.15 (Daffodil)
Authenticated Local File Inclusion (LFI) in Briefcase document handling via the packages parameter disclosing server files Upgrade ke ZCS 10.1.17+ / 10.0.16+ truff (OVHcloud)
2026 CVE-2026-73574 9.8 CRITICAL Classic UI Core (/h/) • ZCS 10.1.0 – 10.1.16 (Daffodil)
• ZCS 10.0.0 – 10.0.15 (Daffodil)
Unauthenticated Local File Inclusion (LFI) in the Classic Web Client UI via the fu parameter leading to arbitrary file disclosure and JSP execution Upgrade ke ZCS 10.1.17+ / 10.0.16+ Skay
2026 CVE-2026-73575 8.8 HIGH EWS Endpoint (/service/extension/ews) • ZCS 10.1.0 – 10.1.16 (Daffodil)
• ZCS 10.0.0 – 10.0.15 (Daffodil)
Cross-Site Request Forgery (CSRF) in the EWS endpoint allowing unauthorized actions on behalf of authenticated users Upgrade ke ZCS 10.1.17+ / 10.0.16+ truff (OVHcloud)
2026 CVE-2026-73576 7.5 HIGH Document Editing Security Module • ZCS 10.1.0 – 10.1.16 (Daffodil)
• ZCS 10.0.0 – 10.0.15 (Daffodil)
Weak random number generator for zimbraDocumentEditingJwtSecret allowing offline brute-forcing of the JWT signing secret Upgrade ke ZCS 10.1.17+ / 10.0.16+ RISE Research
2026 CVE-2026-33368 8.8 HIGH Webmail Message Body Context • ZCS 10.1.0 – 10.1.15 (Daffodil)
• ZCS 10.0.0 – 10.0.14 (Daffodil)
Cross-Site Scripting (XSS) in Zimbra Webmail message rendering context allowing session hijacking Upgrade ke ZCS 10.1.16+ / 10.0.15+ Vũ
2026 CVE-2026-33369 8.8 HIGH OpenLDAP Directory Connector • ZCS 10.1.0 – 10.1.15 (Daffodil)
• ZCS 10.0.0 – 10.0.14 (Daffodil)
Authenticated LDAP injection by failing to sanitize user-controlled input in directory search filters Upgrade ke ZCS 10.1.16+ / 10.0.15+ truff (OVHcloud)
2026 CVE-2026-33370 7.5 HIGH Briefcase Shared Files • ZCS 10.1.0 – 10.1.15 (Daffodil)
• ZCS 10.0.0 – 10.0.14 (Daffodil)
Stored XSS in the Briefcase feature caused by inline rendering of specific uploaded file types when shared publicly Upgrade ke ZCS 10.1.16+ / 10.0.15+ truff (OVHcloud)
2026 CVE-2026-33371 8.8 HIGH EWS SOAP Endpoint • ZCS 10.1.0 – 10.1.15 (Daffodil)
• ZCS 10.0.0 – 10.0.14 (Daffodil)
Authenticated XML External Entity (XXE) injection in EWS SOAP endpoint allowing file exfiltration Upgrade ke ZCS 10.1.16+ / 10.0.15+ RISE Research
2026 CVE-2026-33372 7.5 HIGH HTTP CSRF Validation Handler • ZCS 10.1.0 – 10.1.15 (Daffodil)
• ZCS 10.0.0 – 10.0.14 (Daffodil)
CSRF validation issue where tokens were incorrectly accepted from request body instead of required header Upgrade ke ZCS 10.1.16+ / 10.0.15+ Ashish Kataria
2025 CVE-2025-68645 9.8 CRITICAL Jetty REST API (RestFilter) • ZCS 10.1.0 – 10.1.12 (Daffodil)
• ZCS 10.0.0 – 10.0.17 (Daffodil)
• ZCS 9.0.0 Patch 1 s.d. Patch 44 (Kepler)
• ZCS 8.8.15 Patch 1 s.d. Patch 45 (Joule)
Unauthenticated Local File Inclusion (LFI) in RestFilter allowing attackers to traverse paths and execute arbitrary JSP files in webapps directory Upgrade ke ZCS 10.1.13+ / 10.0.18+ / 9.0.0 P45+; terapkan Nginx block rule pada /service/rest/ devme4f from VNPT-VCI
2025 CVE-2025-66376 8.8 HIGH Classic UI HTML Sanitizer • ZCS 10.1.0 – 10.1.12 (Daffodil)
• ZCS 10.0.0 – 10.0.17 (Daffodil)
Stored XSS vulnerability in Classic UI where attackers abuse CSS @import directives in email HTML to exfiltrate user session tokens Upgrade ke ZCS 10.1.13+ / 10.0.18+ NCSC-FI
2025 CVE-2025-67809 6.5 MEDIUM Flickr Zimlet Extension • ZCS 10.1.0 – 10.1.12 (Daffodil) Hardcoded Flickr API credentials present in legacy Flickr Zimlet extension Upgrade ke ZCS 10.1.13+ (Zimlet credentials revoked) Jaswanth Chemarthipalli
2025 CVE-2025-62763 7.5 HIGH Chat Proxy Service • ZCS 10.1.0 – 10.1.11 (Daffodil) Server-Side Request Forgery (SSRF) vulnerability in chat proxy configuration interacting with internal daemon endpoints Upgrade ke ZCS 10.1.12+ RISE Research
2025 CVE-2025-54390 7.5 HIGH SOAP Admin (ResetPasswordRequest) • ZCS 10.1.0 – 10.1.9 (Daffodil)
• ZCS 10.0.0 – 10.0.15 (Daffodil)
CSRF in ResetPasswordRequest SOAP operation allowing unauthorized password changes Upgrade ke ZCS 10.1.10+ / 10.0.16+ Zimbra Security Team
2025 CVE-2025-54391 8.8 HIGH Two-Factor Authentication (2FA) Module • ZCS 10.1.0 – 10.1.9 (Daffodil)
• ZCS 10.0.0 – 10.0.15 (Daffodil)
Missing authentication token validation allowing unauthorized modification of account 2FA settings Upgrade ke ZCS 10.1.10+ / 10.0.16+ Ashish Kataria
2025 CVE-2025-53645 7.5 HIGH Admin Console UI • ZCS 10.1.0 – 10.1.8 (Daffodil)
• ZCS 10.0.0 – 10.0.14 (Daffodil)
• ZCS 9.0.0 Patch 1 s.d. Patch 45 (Kepler)
Denial of Service (DoS) vulnerability in the admin console leading to complete service disruption Upgrade ke ZCS 10.1.9+ / 10.0.15+ / 9.0.0 P46+ Zimbra Security Team
2025 CVE-2025-48700 6.1 MEDIUM Classic UI HTML Parser (CISA KEV) • ZCS 10.1.0 – 10.1.12 (Daffodil)
• ZCS 10.0.0 – 10.0.17 (Daffodil)
• ZCS 9.0.0 Patch 1 s.d. Patch 44 (Kepler)
• ZCS 8.8.15 Patch 1 s.d. Patch 46 (Joule)
Client-side DOM stylesheet injection via malformed layout elements in inbound messages allowing token harvesting (listed in CISA KEV catalog) Pasang build kumulatif patch ZCS 10.1.13+ / 10.0.18+ / 9.0.0 P45+ / 8.8.15 P47+ CISA KEV Catalog & ZCS Advisory
2025 CVE-2025-27915 8.8 HIGH Classic Web Client • ZCS 10.1.0 – 10.1.4 (Daffodil)
• ZCS 10.0.0 – 10.0.12 (Daffodil)
• ZCS 9.0.0 Patch 1 s.d. Patch 43 (Kepler)
Stored Cross-Site Scripting (XSS) in Classic Web Client input sanitization allowing session takeovers Upgrade ke ZCS 10.1.5+ / 10.0.13+ / 9.0.0 P44+ Zimbra Security Team
2025 CVE-2025-25064 9.8 CRITICAL ZimbraSyncService SOAP • ZCS 10.1.0 – 10.1.3 (Daffodil)
• ZCS 10.0.0 – 10.0.11 (Daffodil)
SQL Injection in ZimbraSyncService SOAP endpoint allowing direct extraction and modification of database tables Upgrade ke ZCS 10.1.4+ / 10.0.12+ byc_404 (Joe Zhou)
2025 CVE-2025-25065 7.5 HIGH RSS Feed Parser • ZCS 10.1.0 – 10.1.3 (Daffodil)
• ZCS 10.0.0 – 10.0.11 (Daffodil)
• ZCS 9.0.0 Patch 1 s.d. Patch 42 (Kepler)
Server-Side Request Forgery (SSRF) in RSS feed parser allowing unauthorized redirection to internal network endpoints Upgrade ke ZCS 10.1.4+ / 10.0.12+ / 9.0.0 P43+ Mauro Dini
2025 CVE-2025-32354 7.5 HIGH GraphQL Endpoints • ZCS 10.1.0 – 10.1.3 (Daffodil) CSRF on GraphQL endpoints allowing unauthorized operations by omitting token validation Upgrade ke ZCS 10.1.4+ 0xf4h1m
2024 CVE-2024-45519 9.8 CRITICAL Postjournal Service (/opt/zimbra/libexec/postjournal) • ZCS 10.1.0 (Daffodil)
• ZCS 10.0.0 – 10.0.8 (Daffodil)
• ZCS 9.0.0 Patch 1 s.d. Patch 40 (Kepler)
• ZCS 8.8.15 Patch 1 s.d. Patch 45 (Joule)
Unauthenticated Remote Code Execution via SMTP recipient header injection parsed by postjournal wrapper Upgrade ke ZCS 10.1.1+ / 10.0.9+ / 9.0.0 P41+ / 8.8.15 P46+ atau nonaktifkan postjournal: zmlocalconfig -e postjournal_enabled=false && zmcontrol restart lebr0nli (Alan Li)
2024 CVE-2024-45518 8.8 HIGH Core HTTP Routing • ZCS 10.1.0 (Daffodil)
• ZCS 10.0.0 – 10.0.8 (Daffodil)
• ZCS 9.0.0 Patch 1 s.d. Patch 40 (Kepler)
• ZCS 8.8.15 Patch 1 s.d. Patch 45 (Joule)
SSRF in core HTTP router dispatching forged requests to internal Loopback/LAN backend services Upgrade ke ZCS 10.1.1+ / 10.0.9+ / 9.0.0 P41+ / 8.8.15 P46+ lebr0nli (Alan Li)
2024 CVE-2024-45516 6.1 MEDIUM Classic UI Image Tag Parser • ZCS 10.0.0 – 10.0.11 (Daffodil)
• ZCS 9.0.0 Patch 1 s.d. Patch 42 (Kepler)
• ZCS 8.8.15 Patch 1 s.d. Patch 46 (Joule)
Persistent XSS execution triggered by malformed image attributes in message contents during user viewing Upgrade ke ZCS 10.0.12+ / 9.0.0 P43+ / 8.8.15 P47+ ZCS Security Center
2024 CVE-2024-33535 7.5 HIGH Admin Console Interface (zimbraAdmin) • ZCS 10.0.0 – 10.0.7 (Daffodil)
• ZCS 9.0.0 Patch 1 s.d. Patch 39 (Kepler)
• ZCS 8.8.15 Patch 1 s.d. Patch 45 (Joule)
Unauthenticated Local File Inclusion in zimbraAdmin interface via the packages parameter Upgrade ke ZCS 10.0.8+ / 9.0.0 P40+ / 8.8.15 P46+ Netragard
2024 CVE-2024-33533 5.4 MEDIUM Admin Console Interface (zimbraAdmin) • ZCS 10.0.0 – 10.0.7 (Daffodil)
• ZCS 9.0.0 Patch 1 s.d. Patch 39 (Kepler)
XSS in zimbraAdmin interface due to unsanitized administrative input parameters Upgrade ke ZCS 10.0.8+ / 9.0.0 P40+ Netragard
2024 CVE-2024-27443 6.1 MEDIUM Calendar Invite Processor • ZCS 10.0.0 – 10.0.6 (Daffodil)
• ZCS 9.0.0 Patch 1 s.d. Patch 38 (Kepler)
• ZCS 8.8.15 Patch 1 s.d. Patch 45 (Joule)
Cross-Site Scripting (XSS) vulnerability in calendar invitation body parsing Upgrade ke ZCS 10.0.7+ / 9.0.0 P39+ / 8.8.15 P46+ nhiephon, chung96vn, SPT (NCSC Vietnam)
2024 CVE-2024-27442 7.8 HIGH System Privilege Wrapper • ZCS 10.0.0 – 10.0.6 (Daffodil)
• ZCS 9.0.0 Patch 1 s.d. Patch 38 (Kepler)
Local Privilege Escalation (LPE) allowing zimbra user to gain elevated permissions Upgrade ke ZCS 10.0.7+ / 9.0.0 P39+ Zero Day Initiative (ZDI)
2023 CVE-2023-48432 6.1 MEDIUM Classic Web Client Link Handler • ZCS 10.0.0 – 10.0.5 (Daffodil)
• ZCS 9.0.0 Patch 1 s.d. Patch 36 (Kepler)
• ZCS 8.8.15 Patch 1 s.d. Patch 43 (Joule)
Reflected script execution in Classic UI session context via manipulated hyperlink parameters in received emails Upgrade ke ZCS 10.0.6+ / 9.0.0 P37+ / 8.8.15 P44+ ZCS Security Center
2023 CVE-2023-38750 7.5 HIGH ZWC Public JSP Context (launchUser.jsp) • ZCS 10.0.0 – 10.0.1 (Daffodil)
• ZCS 9.0.0 Patch 1 s.d. Patch 33 (Kepler)
• ZCS 8.8.15 Patch 1 s.d. Patch 40 (Joule)
Reflected XSS in public/launchUser.jsp actively exploited in the wild by Russian state-sponsored threat group Winter Vivern Upgrade ke ZCS 10.0.2+ / 9.0.0 P34+ / 8.8.15 P41+ Google Threat Analysis Group (Clément Lecigne)
2023 CVE-2023-37580 6.1 MEDIUM Classic Web Client Login • ZCS 9.0.0 Patch 1 s.d. Patch 32 (Kepler)
• ZCS 8.8.15 Patch 1 s.d. Patch 39 (Joule)
Reflected Cross-Site Scripting on login redirect URL query parameter Upgrade ke ZCS 9.0.0 P33+ / 8.8.15 P40+ Clément Lecigne (Google TAG)
2023 CVE-2023-34193 7.2 HIGH ClientUploader Servlet • ZCS 10.0.0 – 10.0.1 (Daffodil)
• ZCS 9.0.0 Patch 1 s.d. Patch 33 (Kepler)
• ZCS 8.8.15 Patch 1 s.d. Patch 40 (Joule)
Privileged ClientUploader endpoint flaw enabling rogue binary attachment persistence and web-accessible script generation Instal pembaruan versi ZCS 10.0.2+ / 9.0.0 P34+ / 8.8.15 P41+ Zimbra Product Security Advisory
2023 CVE-2023-34192 6.1 MEDIUM Admin Console UI • ZCS 9.0.0 Patch 1 s.d. Patch 31 (Kepler)
• ZCS 8.8.15 Patch 1 s.d. Patch 38 (Joule)
Stored XSS in Zimlet Configuration UI leading to administrator account takeover upon inspection Upgrade ke ZCS 9.0.0 P32+ / 8.8.15 P39+; batasi akses port 7071 Skay, Noah-Lab
2023 CVE-2023-29382 7.5 HIGH sfdc_preauth.jsp Component • ZCS 10.0.0 – 10.0.1 (Daffodil)
• ZCS 9.0.0 Patch 1 s.d. Patch 32 (Kepler)
• ZCS 8.8.15 Patch 1 s.d. Patch 39 (Joule)
Pre-session flaw in sfdc_preauth endpoint allowing external callers to navigate system directories and run unauthorized server-side scripts Terapkan patch keamanan ZCS 10.0.2+ / 9.0.0 P33+ / 8.8.15 P40+ Synacor Security Bulletin
2022 CVE-2022-41352 9.8 CRITICAL Amavis Mail Filter (cpio archive unpacker) • ZCS 9.0.0 Patch 1 s.d. Patch 26 (Kepler)
• ZCS 8.8.15 Patch 1 s.d. Patch 33 (Joule)
_(Jika paket POSIX pax tidak terpasang)_
Unauthenticated Arbitrary File Upload via cpio extraction fallback to Jetty webroot leading to instant webshell RCE Wajib pasang utilitas OS pax (apt install pax / dnf install pax) & upgrade ke ZCS 9.0.0 P27+ / 8.8.15 P34+ Yeak Nai Siew
2022 CVE-2022-37042 9.8 CRITICAL MailboxImportServlet Endpoint • ZCS 9.0.0 Patch 1 s.d. Patch 25 (Kepler)
• ZCS 8.8.15 Patch 1 s.d. Patch 32 (Joule)
Authentication bypass in MailboxImportServlet chained with ZipSlip directory traversal for unauthenticated RCE Upgrade ke ZCS 9.0.0 P26+ / 8.8.15 P33+ Steven Adair & Thomas Lancaster (Volexity)
2022 CVE-2022-27925 7.2 HIGH mboximport Zip Upload Handler • ZCS 9.0.0 Patch 1 s.d. Patch 23 (Kepler)
• ZCS 8.8.15 Patch 1 s.d. Patch 30 (Joule)
ZipSlip arbitrary file upload and path traversal dropping JSP webshells in Jetty webroot Upgrade ke ZCS 9.0.0 P24+ / 8.8.15 P31+ Mikhail Klyuchnikov (Positive Technologies)
2022 CVE-2022-27924 7.5 HIGH Memcached SASL Routing Proxy • ZCS 9.0.0 Patch 1 s.d. Patch 23 (Kepler)
• ZCS 8.8.15 Patch 1 s.d. Patch 30 (Joule)
Unauthenticated Memcached route cache injection hijacking active Nginx SASL authentication streams and credentials Upgrade ke ZCS 9.0.0 P24+ / 8.8.15 P31+; bind memcached ke 127.0.0.1 Simon Scannell (SonarSource)
2019 CVE-2019-9670 9.8 CRITICAL Mailboxd (/Autodiscover/Autodiscover.xml) • ZCS 8.7.0 s.d. 8.7.11 (JudasPriest)
• ZCS 8.8.0 s.d. 8.8.12 (Joule)
• ZCS 8.6.0 GA
XML External Entity (XXE) injection leading to localconfig.xml & LDAP superadmin token theft Upgrade ke ZCS 8.8.12 P1+ / 8.8.11 P3+ / 8.7.11 P10+ An Trinh (VNPT)
2019 CVE-2019-9621 9.8 CRITICAL Proxy Servlet / SOAP Handler • ZCS 8.7.0 s.d. 8.7.11 (JudasPriest)
• ZCS 8.8.0 s.d. 8.8.14 (Joule)
Pre-auth SSRF chain in ProxyServlet redirecting forged SOAP XML payloads to execute privileged admin commands Upgrade ke ZCS 8.8.15 GA / 8.7.11 P10+ An Trinh (VNPT)

# Analisis Mendalam Arsitektur & Permukaan SeranganDeep Architecture & Attack Surface Analysis

Arsitektur Zimbra terdiri dari beberapa daemon independen yang saling berkomunikasi. Pemahaman batas pertahanan (security perimeter) setiap komponen sangat penting untuk mitigasi proaktif:

ZCS architecture comprises multiple decoupled daemons operating across dedicated network boundaries. Understanding the security perimeter of each daemon is essential for proactive threat mitigation:

TEXT
+-----------------------------------------------------------------------------------+
|                            EXTERNAL UNTRUSTED NETWORK                             |
+-----------------------------------------------------------------------------------+
           | (SMTP: 25)              | (HTTPS: 443)              | (Admin: 7071 - MUST RESTRICT)
           v                         v                           v
+-----------------------+ +-----------------------+ +-----------------------+
|     POSTFIX (MTA)     | |      NGINX PROXY      | |     ADMIN CONSOLE     |
| - Milter / Policyd    | | - SSL Offloading      | | - SOAP Admin Servlet  |
| - Postjournal Hook    | | - Upstream Routing    | | - Zimlet Deployer     |
+-----------------------+ +-----------------------+ +-----------------------+
           | (Port 10024)            | (Port 8080/8443)          |
           v                         v                           v
+-----------------------+ +---------------------------------------------------------+
|   AMAVISD-NEW & SCAN  | |                      JETTY (MAILBOXD)                   |
| - SpamAssassin        | | - Core Application Context (`/service/soap`, `/zimbra`) |
| - ClamAV Daemon       | | - Autodiscover Service (`/Autodiscover/Autodiscover.xml`)|
| - Unpackers (pax/cpio)| | - Extension Hooks & JSP Webroot                         |
+-----------------------+ +---------------------------------------------------------+
                                     |                           |
                    (Port 389/636)   v                           v (Port 11211)
                        +-----------------------+   +-----------------------+
                        |    OPENLDAP (SLAPD)   |   |   MEMCACHED ROUTING   |
                        | - Master User Store   |   | - Session Lookup Cache|
                        | - Encrypted Passwords |   +-----------------------+
                        +-----------------------+
  1. Jetty (mailboxd): Jantung aplikasi ZCS. Menjalankan servlet SOAP, REST, Zimlet runtime, dan webmail UI. Merupakan target utama eksploitasi JSP Webshell (seperti CVE-2019-9670, CVE-2022-27925, dan CVE-2025-68645).
  2. Postfix MTA & Postjournal: Mengelola antrean email masuk/keluar. Layanan postjournal yang rentan terhadap command injection (CVE-2024-45519) wajib dimatikan jika organisasi tidak menggunakan compliance archiving.
  3. Amavisd & Antivirus Scanners: Membedah attachment arsip email. Ketiadaan utilitas POSIX pax menyebabkan Amavis menggunakan fallback cpio yang dapat dieksploitasi untuk meletakkan webshell arbitrer (CVE-2022-41352).
  4. OpenLDAP (slapd): Menyimpan seluruh metadata akun, domain, dan konfigurasi server global (localconfig.xml). Kebocoran kredensial LDAP superadmin merupakan gerbang pengambilalihan seluruh sistem mail.
  5. Nginx Reverse Proxy: Memfilter lalu lintas IMAP, POP3, dan HTTP. Template Nginx wajib dikonfigurasi untuk memblokir akses eksternal ke endpoint sensitif dan admin console port 7071.
  1. Jetty (mailboxd): Core application context executing SOAP/REST servlets, Zimlet runtimes, and user webmail. Primary target for JSP webshell injections (CVE-2019-9670, CVE-2022-27925, CVE-2025-68645).
  2. Postfix MTA & Postjournal: Ingress/egress mail routing daemon. Postjournal component (vulnerable to CVE-2024-45519 command injection) must be disabled unless compliance journaling is strictly required.
  3. Amavisd & Antivirus Scanners: Unpacks and analyzes inbound message attachments. Missing POSIX pax triggers Amavis fallback to vulnerable cpio handlers (CVE-2022-41352).
  4. OpenLDAP (slapd): Master directory containing account objects, domain trees, and localconfig.xml credentials. Root LDAP credential leakage enables complete infrastructure takeover.
  5. Nginx Reverse Proxy: Frontline proxy for IMAP, POP3, and HTTPS. Must be configured to restrict external reachability to sensitive servlets and admin port 7071.

# Taxonomy of Zimbra Threat Vectors & Exploit Chains

Diagram di bawah ini mengilustrasikan bagaimana penyerang merangkai (_exploit chaining_) berbagai kerentanan dari level pre-authentication hingga mencapai eksekusi kode tingkat sistem (_Remote Code Execution & Root Takeover_):

Diagram Interaktif Arsitektur / Exploit Flow

# Protokol Tanggap Darurat Insiden Zero-Day & HardeningZero-Day Emergency Incident Response & Hardening Protocol

Jika server Anda dicurigai telah disusupi atau terdapat pengumuman Zero-Day baru di alam liar (active exploitation), jalankan prosedur triase dan sanitasi darurat berikut:

If compromise is suspected or an unpatched Zero-Day vulnerability is actively exploited in the wild, execute the following emergency containment and triage procedure:

# 1. Isolasi dan Nonaktifkan Vektor RCE Umum

BASH
# 1. Nonaktifkan postjournal (Mitigasi CVE-2024-45519)
su - zimbra -c "zmlocalconfig -e postjournal_enabled=false"
su - zimbra -c "zmcontrol restart"

# 2. Pastikan utilitas pax terpasang untuk melindungi Amavis (Mitigasi CVE-2022-41352)
# Di Ubuntu:
sudo apt-get update && sudo apt-get install -y pax
# Di RHEL / Rocky / Alma:
sudo dnf install -y pax

# 2. Audit dan Karantina JSP Webshell di Webroot Jetty

BASH
# Cari file JSP yang dimodifikasi atau mencurigakan dalam direktori webapps
find /opt/zimbra/jetty/webapps/ -type f -name "*.jsp" -exec ls -la {} +

# Pindai string berbahaya khas webshell (eval, Runtime.getRuntime, ProcessBuilder)
grep -rnE "(Runtime\.getRuntime\(\)\.exec|ProcessBuilder|passthru|shell_exec)" /opt/zimbra/jetty/webapps/

# 3. Audit Persistensi Crontab & SSH Keys

BASH
# Periksa crontab user zimbra dan root
crontab -u zimbra -l
crontab -u root -l

# Periksa SSH authorized_keys milik zimbra
cat /opt/zimbra/.ssh/authorized_keys 2>/dev/null || true

# 4. Rotasi Kredensial LDAP & Kunci Enkripsi

BASH
# Gunakan toolkit pembersih forensik resmi
git clone https://github.com/alsyundawy/eradicate-zimbra-malware.git /tmp/ezm
cd /tmp/ezm && sudo ./eradicate.sh --scan-and-heal


# Arsitektur DNS Enterprise (Unbound, BIND9, dnsdist & RBL) Enterprise DNS Architecture (Unbound, BIND9, dnsdist & RBL)

DNS adalah fondasi paling kritis dalam ekosistem Zimbra Mail Server. Menggunakan DNS publik bersama (seperti 8.8.8.8 atau 1.1.1.1) sangat tidak disarankan pada lingkungan produksi karena memicu pemblokiran kuota kueri (rate-limiting) oleh penyedia DNSBL/RBL (seperti Spamhaus ZEN yang mengembalikan kode 127.255.255.254 atau HTTP 403), mengakibatkan kegagalan resolusi MX, timeout antrean email, dan kebocoran spam masif.

DNS is the foundational bedrock of enterprise mail infrastructure. Relying on shared public resolvers (such as 8.8.8.8 or 1.1.1.1) is strictly discouraged in production deployments because it triggers query rate-limiting and access denial from major DNSBL/RBL providers (such as Spamhaus ZEN returning 127.255.255.254 or HTTP 403), causing MX timeouts, false-negative spam filtering, and delivery delays.

# 1. Konfigurasi Caching Recursive Resolver Lokal (Unbound) 1. Local Caching Recursive Resolver Configuration (Unbound)

Pasang Unbound pada alamat loopback 127.0.0.1:53 untuk melayani seluruh kueri DNS lokal server Zimbra secara independen langsung ke root DNS hints:

Deploy Unbound on loopback interface 127.0.0.1:53 to handle recursive DNS queries directly from upstream root hints with prefetching and DNSSEC validation:

CONF (/etc/unbound/unbound.conf.d/zimbra-resolver.conf)
server:
    interface: 127.0.0.1
    port: 53
    do-ip4: yes
    do-ip6: no
    do-udp: yes
    do-tcp: yes

    # Access control
    access-control: 127.0.0.0/8 allow

    # Caching and Performance Tuning
    num-threads: 2
    msg-cache-slabs: 4
    rrset-cache-slabs: 4
    infra-cache-slabs: 4
    key-cache-slabs: 4
    msg-cache-size: 64m
    rrset-cache-size: 128m
    outgoing-range: 8192
    num-queries-per-thread: 4096

    # Prefetching and Resilience
    prefetch: yes
    prefetch-key: yes
    serve-expired: yes
    serve-expired-ttl: 86400

    # Privacy and Hardening
    hide-identity: yes
    hide-version: yes
    harden-glue: yes
    harden-dnssec-stripped: yes
    use-caps-for-id: no

    # DNSSEC Root Anchor
    auto-trust-anchor-file: "/var/lib/unbound/root.key"

# 2. Integrasi Multi-Tier RBL / DNSBL pada Postfix MTA 2. Multi-Tier RBL / DNSBL Integration on Postfix MTA

Konfigurasikan pembatasan penerimaan MTA (zimbraMtaRestriction) untuk menolak spam pada tahap koneksi SMTP (pre-data reject) guna menghemat sumber daya CPU ClamAV dan Amavisd:

Configure Postfix zimbraMtaRestriction parameters to reject abusive hosts at early SMTP connection handshake (pre-data reject), preserving ClamAV and Amavisd CPU cycles:

BASH
# Terapkan RBL resmi melalui utilitas zmprov (sebagai user zimbra)
su - zimbra -c "zmprov mcf -- +zimbraMtaRestriction 'reject_rbl_client zen.spamhaus.org'"
su - zimbra -c "zmprov mcf -- +zimbraMtaRestriction 'reject_rbl_client b.barracudacentral.org'"
su - zimbra -c "zmprov mcf -- +zimbraMtaRestriction 'reject_rbl_client bl.spamcop.net'"
su - zimbra -c "zmprov mcf -- +zimbraMtaRestriction 'reject_rhsbl_client dbl.spamhaus.org'"
su - zimbra -c "zmprov mcf -- +zimbraMtaRestriction 'reject_rhsbl_sender dbl.spamhaus.org'"
su - zimbra -c "zmmtactl restart"

# Cadangan Panas & Pemulihan Bencana Enterprise (zmbackup) Enterprise Hot Backup & Disaster Recovery (zmbackup)

Suite cadangan zmbackup menyediakan arsitektur zero-downtime hot backup melalui antarmuka REST API streaming tanpa perlu mematikan layanan Zimbra, mendukung cadangan penuh (full), diferensial/inkremental, serta ekspor metadata LDAP dan database MariaDB:

The zmbackup disaster recovery engine provides zero-downtime hot backup capabilities via high-throughput REST API streaming without interrupting production mailflow, featuring full/differential backups, multi-threaded worker pools, and automated LDAP/database metadata exports:

BASH
# 1. Instalasi dan Setup zmbackup Suite
git clone https://github.com/alsyundawy/zmbackup.git /opt/zmbackup
cd /opt/zmbackup && sudo chmod +x zmbackup

# 2. Jalankan Hot Full Backup Seluruh Akun Mailbox
sudo ./zmbackup -f -a all

# 3. Jalankan Differential Backup Harian (Hanya email & data yang berubah)
sudo ./zmbackup -d -a all

# 4. Pemulihan Akun Tunggal (Single Account Restore)
sudo ./zmbackup -r -a user@domainanda.com -f 2026-08-30_12-00-00

# 5. Replikasi Terenkripsi ke Storage Cloud / Remote Backup Server
rsync -avz --delete -e "ssh -p 2222" /opt/zimbra/backup/ backupuser@backup-server.local:/storage/zimbra-backups/

# Firewall, Jaringan & Pengerasan Host (UFW, iptables & Fail2Ban) Firewall, Network & Host Hardening (UFW, iptables & Fail2Ban)

Isolasi port yang ketat merupakan garis pertahanan terdepan untuk mencegah akses liar ke konsol admin dan daemon internal:

Strict port segmentation and defensive firewall rules represent the frontline barrier protecting administrative consoles and internal IPC daemons from untrusted external traffic:

BASH (UFW Hardening Script - Ubuntu)
# Reset dan Atur Kebijakan Dasar Firewall
sudo ufw default deny incoming
sudo ufw default allow outgoing

# Port Layanan Publik Terbuka
sudo ufw allow 25/tcp comment "SMTP Ingress"
sudo ufw allow 80/tcp comment "HTTP Webmail Redirect"
sudo ufw allow 443/tcp comment "HTTPS Webmail & ActiveSync"
sudo ufw allow 465/tcp comment "SMTPS Secure Submission"
sudo ufw allow 587/tcp comment "SMTP Submission (Auth)"
sudo ufw allow 993/tcp comment "IMAPS Secure"
sudo ufw allow 995/tcp comment "POP3S Secure"

# Port Administrasi Khusus (HANYA izinkan dari subnet manajemen / VPN terpercaya)
# Ganti 192.168.100.0/24 dengan IP Subnet VPN / Bastion Anda
sudo ufw allow from 192.168.100.0/24 to any port 7071 proto tcp comment "Admin Console (Restricted)"
sudo ufw allow from 192.168.100.0/24 to any port 9071 proto tcp comment "Admin SOAP (Restricted)"
sudo ufw allow from 192.168.100.0/24 to any port 22 proto tcp comment "SSH Management (Restricted)"

# Aktifkan Firewall
sudo ufw enable && sudo ufw status verbose

# Konfigurasi Fail2Ban untuk Perlindungan Autentikasi ZCS Fail2Ban Jail Configuration for ZCS Authentication Defense

CONF (/etc/fail2ban/jail.d/zimbra.local)
[zimbra-webmail]
enabled  = true
port     = http,https
filter   = zimbra-webmail
logpath  = /opt/zimbra/log/mailbox.log
maxretry = 5
findtime = 600
bantime  = 86400

[zimbra-postfix]
enabled  = true
port     = 25,465,587
filter   = postfix[mode=auth]
logpath  = /var/log/mail.log
maxretry = 5
findtime = 600
bantime  = 86400

# Operational Best Practices (RFC 2119)

Klasifikasi pedoman tata kelola dan konfigurasi operasional server Zimbra Collaboration Suite berdasarkan konvensi taksonomi formal RFC 2119 (Key words for use in RFCs to Indicate Requirement Levels). Seluruh klausul dirancang untuk menjamin defense-in-depth, integritas data, ketersediaan tinggi (high availability), dan ketahanan terhadap vektor eksploitasi siber modern.

1. MUST / REQUIRED (Wajib Mutlak)1. MUST / REQUIRED (Mandatory Baseline)
Absolute Requirement
MUST Install POSIX pax Utility

Host OS wajib memiliki paket pax terinstal (apt-get install -y pax / dnf install -y pax). Amavisd menggunakan utilitas ini untuk dekompresi arsip email; ketiadaannya memicu fallback ke cpio yang rentan terhadap eksekusi kode arbitrer jarak jauh (RCE) (CVE-2022-41352). The host OS MUST have the pax package installed (apt-get install -y pax / dnf install -y pax). Amavisd relies on this utility for archive decompression; its absence triggers an unauthenticated RCE fallback via vulnerable cpio unpackers (CVE-2022-41352).

MUST Isolate Admin Port (7071 / 9071)

Port administrasi ZCS (7071 untuk Admin Web Console & SOAP Admin Servlet) wajib diisolasi dari internet publik (0.0.0.0/0) dan hanya boleh diakses melalui VPN korporat terenkripsi, IP bastion/manajemen khusus, atau SSH tunneling lokal (127.0.0.1). ZCS administration ports (7071 for Admin Web Console & SOAP Admin Servlets) MUST be isolated from public WAN reachability (0.0.0.0/0) and restricted exclusively to corporate VPNs, dedicated bastion hosts, or local SSH tunnels (127.0.0.1).

MUST Disable Postjournal When Not in Use

Bagi sistem yang tidak menggunakan audit compliance journaling eksternal, layanan postjournal wajib dinonaktifkan untuk menutup celah RCE unauthenticated recipient injection (CVE-2024-45519): For environments not utilizing external compliance archiving, the postjournal service MUST be disabled to eliminate unauthenticated command injection attack surfaces (CVE-2024-45519):

BASH
su - zimbra -c "zmlocalconfig -e postjournal_enabled=false && zmcontrol restart"
MUST Bind Internal Daemons to Loopback (127.0.0.1)

Layanan internal seperti Memcached (port 11211), MySQL (port 7306), dan LDAP replica wajib di-bind hanya pada interface loopback lokal guna mencegah eksploitasi route cache poisoning (CVE-2022-27924) dan ekstraksi basis data langsung. Internal daemons including Memcached (port 11211), MySQL (port 7306), and LDAP replica listeners MUST bind strictly to the loopback interface (127.0.0.1) to prevent cache poisoning attacks (CVE-2022-27924) and direct unauthorized database probing.

MUST Enforce Cryptographic Checksum Validation

Setiap arsip rilis biner ZCS yang diunduh dari repositori mirror wajib diverifikasi menggunakan hash kriptografis SHA256 atau MD5 resmi sebelum diekstraksi ke direktori sistem. All ZCS release binary packages retrieved from remote mirrors MUST undergo cryptographic integrity verification via official SHA256 or MD5 checksum digests before unpacking.

2. MUST NOT / SHALL NOT (Dilarang Keras)2. MUST NOT / SHALL NOT (Strictly Prohibited)
Strictly Prohibited
MUST NOT Expose Admin Console to Public WAN

Dilarang memetakan port 7071 atau direktori /zimbraAdmin secara langsung ke alamat IP publik, karena merupakan sasaran utama pemindaian otomatis botnet, CSRF, dan kerentanan Zimlet UI (CVE-2023-34192, CVE-2024-33535). Administrators MUST NOT expose port 7071 or the /zimbraAdmin webroot directly to public WAN subnets due to automated botnet scanning, CSRF vectors, and Zimlet UI vulnerabilities (CVE-2023-34192, CVE-2024-33535).

MUST NOT Run Core Zimbra Processes as root

Dilarang menjalankan daemon aplikasi (mailboxd, slapd, postfix, amavisd, nginx) langsung di bawah hak pengguna root. Seluruh tugas pemeliharaan harian wajib didelegasikan ke user sistem unprivileged zimbra. Application daemons (mailboxd, slapd, postfix, amavisd, nginx) MUST NOT execute directly with root user privileges. All routine operations must remain constrained under the unprivileged zimbra service account.

MUST NOT Defer Cumulative Security Patches

Dilarang menunda penerapan Patch / Security Advisory resmi melebihi 14 hari kalender sejak tanggal pengumuman rilis oleh tim keamanan Zimbra / Synacor. Security teams MUST NOT defer the application of critical Zimbra security patches or cumulative updates beyond 14 calendar days from official vendor disclosure.

MUST NOT Enable Deprecated Protocols & Weak Ciphers

Dilarang mengaktifkan protokol usang SSLv2, SSLv3, TLSv1.0, TLSv1.1 serta cipher lemah (RC4, 3DES, CBC, EXPORT) pada Mail Proxy Nginx maupun Postfix MTA. Configurations MUST NOT enable deprecated cryptographic protocols (SSLv2, SSLv3, TLSv1.0, TLSv1.1) or insecure ciphers (RC4, 3DES, CBC, EXPORT) on Nginx reverse proxy or Postfix MTA.

3. SHOULD / RECOMMENDED (Sangat Disarankan)3. SHOULD / RECOMMENDED (Strongly Recommended)
Best Practice
SHOULD Deploy Dedicated Local Caching DNS Resolver

Sangat disarankan memasang Unbound atau BIND9 pada 127.0.0.1 sebagai recursive resolver lokal. Hal ini secara signifikan memangkas latensi lookup SpamAssassin / DNSBL serta mencegah kegagalan resolusi MX timeout akibat public DNS rate-limiting. Deploying Unbound or BIND9 on 127.0.0.1 as a local recursive caching resolver is STRONGLY RECOMMENDED. This drastically mitigates DNSBL lookup latencies and prevents MX query dropouts caused by public DNS rate limits.

SHOULD Enforce Strict DMARC Policy (p=reject)

Domain pengirim email harus menerapkan catatan DMARC dengan kebijakan penolakan tegas (p=reject), penyelarasan SPF strict (aspf=s), DKIM strict (adkim=s), serta mengonfigurasi pelaporan agregat harian (rua=mailto:dmarc-rua@domain.com). Sending domains SHOULD publish strict DMARC enforcement policies (p=reject), strict SPF alignment (aspf=s), strict DKIM alignment (adkim=s), and aggregate reporting URIs (rua=mailto:dmarc-rua@domain.com).

SHOULD Implement Dynamic Brute-Force Defense (Fail2Ban)

Konfigurasikan Fail2Ban dengan filter regex khusus pada /opt/zimbra/log/mailbox.log dan /var/log/mail.log untuk mendeteksi serta memblokir otomatis alamat IP penyerang pada port Webmail, SMTP Submission (587), dan IMAPS (993). Systems SHOULD deploy Fail2Ban with tailored regex filters parsing /opt/zimbra/log/mailbox.log and /var/log/mail.log to automatically ban abusive IPs across Webmail, Submission (587), and IMAPS (993).

SHOULD Mandate Multi-Factor Authentication (2FA / TOTP)

Wajibkan autentikasi dua faktor berbasis waktu (RFC 6238 TOTP) bagi seluruh akun berhak istimewa (Global Administrator, Delegated Admin) dan disarankan untuk seluruh akun mailbox pengguna. Multi-factor authentication (RFC 6238 TOTP) SHOULD be strictly mandated for all administrative roles and strongly encouraged for all standard mailbox users.

SHOULD Implement CBPolicyD Rate-Limiting

Aktifkan modul Cluebringer (CBPolicyD) untuk membatasi kuota pengiriman email keluar per jam/per akun (misal maks. 100-200 email/jam/user) guna mencegah domain masuk daftar hitam (blacklist) jika terdapat akun pengguna yang terkompromi. Deploying Cluebringer (CBPolicyD) egress rate-limiting per account (e.g., 100-200 messages/hour) SHOULD be implemented to prevent IP reputation tarnishing from compromised user credentials.

4. SHOULD NOT / NOT RECOMMENDED (Sebaiknya Dihindari)4. SHOULD NOT / NOT RECOMMENDED (Discouraged)
Discouraged
SHOULD NOT Rely Solely on Web Interface for Configuration

Hindari melakukan perubahan parameter arsitektur kritis hanya melalui antarmuka grafis Webmail/Admin UI; prioritaskan penggunaan CLI resmi (zmprov, zmlocalconfig, zmcontrol) yang dapat terdokumentasi dan terrekam dalam audit log. Operators SHOULD NOT make core architectural adjustments exclusively through the Admin UI; audited CLI operations (zmprov, zmlocalconfig, zmcontrol) provide reliable configuration traceability.

SHOULD NOT Retain Unencrypted Backups on Same Storage Node

Hindari menyimpan berkas cadangan mailbox hanya pada volume lokal atau storage server yang sama tanpa replikasi terenkripsi ke lokasi fisik / cloud terpisah (off-site disaster recovery). Organizations SHOULD NOT store unencrypted backup snapshots solely on the local server volume without off-site, immutable cloud replication.

SHOULD NOT Use Self-Signed Certificates in Production

Hindari membiarkan sertifikat SSL/TLS bawaan (self-signed) terpasang pada lingkungan produksi publik; selalu gunakan sertifikat valid terpercaya publik (Let's Encrypt / Commercial CA). Public deployments SHOULD NOT maintain default self-signed SSL/TLS certificates; valid certificates signed by trusted public Certificate Authorities (Let's Encrypt / Commercial CA) are essential.

5. MAY / OPTIONAL (Pilihan Tambahan)5. MAY / OPTIONAL (Discretionary Enhancements)
Discretionary
MAY Integrate Centralized SIEM / Syslog Forwarding

Administrator dapat memforward log audit ZCS (/opt/zimbra/log/audit.log, mailbox.log, nginx.access.log) ke platform SIEM terpusat (Wazuh, Elastic SIEM, Graylog, Splunk) via rsyslog TLS terenkripsi. Administrators MAY forward ZCS security audit logs (/opt/zimbra/log/audit.log, mailbox.log, nginx.access.log) to centralized SIEM platforms (Wazuh, Elastic, Graylog, Splunk) over TLS-encrypted rsyslog pipelines.

MAY Implement GeoIP Ingress Filtering on Reverse Proxy

Dapat menerapkan modul Nginx GeoIP2 untuk membatasi atau menolak akses autentikasi Webmail dari wilayah geografis di luar jangkauan operasional bisnis. Infrastructure teams MAY leverage Nginx GeoIP2 modules to restrict webmail authentication attempts originating from untrusted geographic territories outside normal operational zones.

MAY Deploy Automated Forensic & Webshell Scanners

Dapat menjadwalkan pemeriksaan berkala berkas sistem dan webroot Jetty menggunakan toolkit pemulihan insiden seperti eradicate-zimbra-malware. Security teams MAY schedule periodic forensic integrity audits on Jetty webroots using automated incident response suites such as eradicate-zimbra-malware.


# Metodologi Migrasi Strategis & UpgradeStrategic Migration & Upgrade Methodology

Panduan migrasi dan upgrade sistem ZCS:

  1. Metode Rekomendasi: Clean Install & Zero-Contamination Migration
  • Bangun instance server baru menggunakan Ubuntu 22.04 LTS / 24.04 LTS atau Rocky Linux 9.
  • Pasang ZCS 10.1.x (Network Edition atau Maldua FOSS 10.1.20+).
  • Migrasikan seluruh domain, akun, alias, distribution list, dan isi mailbox menggunakan utilitas migrasi mailbox murni seperti Z2C.
  1. Metode Alternatif: Rolling In-Place Upgrade
  • Jalankan audit sanitasi total sistem menggunakan toolkit IR eradicate-zimbra-malware.
  • Buat backup penuh di luar server (off-site backup).
  • Upgrade bertahap: ZCS 8.8.15 P46 ➔ ZCS 9.0.0 P41 ➔ ZCS 10.1.x.
  • Jalankan /opt/zimbra/libexec/zmfixperms --extended pasca-upgrade.

Comprehensive ZCS migration and upgrade architecture:

  1. Recommended Strategy: Clean Install & Zero-Contamination Migration
  • Provision a clean target server instance running Ubuntu 22.04 / 24.04 LTS or Rocky Linux 9.
  • Install fresh ZCS 10.1.x (Network Edition or Maldua FOSS 10.1.20+).
  • Migrate all domains, accounts, aliases, distribution lists, and mailbox contents via pure mailbox migration engines such as Z2C.
  1. Alternative Strategy: Rolling In-Place Upgrade
  • Execute an exhaustive system sanitation audit with the incident response suite eradicate-zimbra-malware.
  • Take complete offline server snapshots and off-site cold backups.
  • Upgrade iteratively: ZCS 8.8.15 P46 ➔ ZCS 9.0.0 P41 ➔ ZCS 10.1.x.
  • Execute /opt/zimbra/libexec/zmfixperms --extended following upgrade completion.

# Menjalankan Pengujian & Verifikasi OtomatisRunning Automated Tests & Checksum Verification

Untuk memverifikasi ketersediaan seluruh link mirror, integritas biner, dan status sistem:

To continuously verify mirror availability, cryptographic hashes, and repository code health:

BASH
# 1. Jalankan pengujian telemetri link dan checksum secara otomatis
python3 scripts/deep_link_validator.py

# 2. Verifikasi status linter repositori menggunakan Trunk
trunk check --all

# Alat Ekosistem & Repositori TerkaitEcosystem Tools & Related Repositories

Utilitas pendukung open source untuk operasional Zimbra:

Open-source companion utilities and ecosystem tooling for Zimbra operations:


# Panduan KontribusiContribution Guidelines

Kontribusi berupa penambahan tautan rilis baru, pembaruan checksum, laporan tautan mirror rusak, atau dokumentasi keamanan sangat diapresiasi.

  • Alur Kontribusi (Pull Request Workflow):
  1. Fork repository ini ke akun GitHub Anda.
  2. Buat branch fitur baru (git checkout -b feature/tambah-versi-10.1.x).
  3. Lakukan verifikasi checksum URL yang ditambahkan.
  4. Submit Pull Request dengan deskripsi yang jelas dan referensi rilis resmi.

Contributions including new release links, checksum updates, broken mirror reports, or security documentation enhancements are highly appreciated.

  • Pull Request Workflow:
  1. Fork this repository to your GitHub account.
  2. Create a new feature branch (git checkout -b feature/add-version-10.1.x).
  3. Verify the HTTP availability and checksums of all added URLs.
  4. Submit a Pull Request with a clear description and official release references.

# Kontak Resmi & PenulisOfficial Contact & Author

Repository ini dikelola dan diperbarui secara berkala oleh:

This repository is actively developed and maintained by:

Dukungan Donasi & Riset:

Donasi QRIS
Donasi QRIS

# Lisensi & Ketentuan HukumLicense & Legal Terms

Didistribusikan di bawah Lisensi Resmi MIT. Lihat berkas LICENSE untuk ketentuan hukum lengkap.

Copyright (c) 2016-2026 Harry Dertin Sutisna Alsyundawy. All rights reserved.

Distributed under the official MIT License. Refer to the LICENSE file for full legal terms.

Copyright (c) 2016-2026 Harry Dertin Sutisna Alsyundawy. All rights reserved.