📄 Description (English)
Roundcube Webmail File Disclosure Vulnerability — Roundcube Webmail contains a file disclosure vulnerability caused by insufficient input validation in conjunction with file-based attachment plugins, which are used by default.
🤖 AI Executive Summary
CVE-2017-16651 is a critical file disclosure vulnerability in Roundcube Webmail caused by insufficient input validation in file-based attachment plugins that are enabled by default. With a CVSS score of 9.0 and known exploits available, attackers can read arbitrary files from the server, potentially exposing sensitive configuration files, credentials, and other confidential data. This vulnerability affects all Roundcube installations using default attachment plugin configurations. Organizations using Roundcube for webmail services should patch immediately as exploitation is actively possible.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: Apr 8, 2026 05:01
🇸🇦 Saudi Arabia Impact Assessment
Roundcube Webmail is widely used across Saudi government agencies, educational institutions, and small-to-medium enterprises as an open-source webmail solution. Government entities regulated by NCA, universities, and organizations that deploy self-hosted email infrastructure are most at risk. Banking sector organizations under SAMA regulation that may use Roundcube for internal or secondary email systems could face credential exposure. Energy sector companies and telecom providers (STC, Mobily) hosting webmail services for employees or subsidiaries could have sensitive server files disclosed, including database credentials and configuration files that could lead to further compromise.
🏢 Affected Saudi Sectors
Government
Education
Banking
Energy
Telecom
Healthcare
Small and Medium Enterprises
⚖️ Saudi Risk Score (AI)
8.2
/ 10.0
🔧 Remediation Steps (English)
Immediate Actions:
1. Update Roundcube Webmail to version 1.3.3, 1.2.8, or 1.1.10 or later immediately
2. If immediate patching is not possible, disable file-based attachment plugins (filesystem_attachments, redundant_attachments) and switch to database-based attachment storage
Patching Guidance:
- Download the latest stable release from https://roundcube.net/download/
- Apply the security patch and restart the web server
- Verify the update by checking the Roundcube version in the admin panel
Compensating Controls:
- Restrict access to Roundcube to internal networks or VPN only
- Implement WAF rules to detect path traversal patterns in attachment-related requests
- Monitor web server logs for suspicious file access patterns (e.g., attempts to read /etc/passwd, configuration files)
- Review server file permissions to minimize readable files by the web server user
Detection Rules:
- Monitor for HTTP requests containing path traversal sequences (../) targeting attachment endpoints
- Alert on access to sensitive system files from the web server process
- Implement file integrity monitoring on Roundcube configuration files
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديث Roundcube Webmail إلى الإصدار 1.3.3 أو 1.2.8 أو 1.1.10 أو أحدث فوراً
2. في حال عدم إمكانية التحديث الفوري، قم بتعطيل إضافات المرفقات المعتمدة على الملفات (filesystem_attachments, redundant_attachments) والتحول إلى تخزين المرفقات في قاعدة البيانات
إرشادات التصحيح:
- تنزيل أحدث إصدار مستقر من https://roundcube.net/download/
- تطبيق التصحيح الأمني وإعادة تشغيل خادم الويب
- التحقق من التحديث عبر فحص إصدار Roundcube في لوحة الإدارة
الضوابط التعويضية:
- تقييد الوصول إلى Roundcube على الشبكات الداخلية أو عبر VPN فقط
- تطبيق قواعد جدار حماية تطبيقات الويب لاكتشاف أنماط اجتياز المسار في طلبات المرفقات
- مراقبة سجلات خادم الويب للكشف عن أنماط وصول مشبوهة للملفات
- مراجعة أذونات ملفات الخادم لتقليل الملفات القابلة للقراءة بواسطة مستخدم خادم الويب
قواعد الكشف:
- مراقبة طلبات HTTP التي تحتوي على تسلسلات اجتياز المسار (../) التي تستهدف نقاط نهاية المرفقات
- التنبيه عند الوصول إلى ملفات النظام الحساسة من عملية خادم الويب
- تطبيق مراقبة سلامة الملفات على ملفات تكوين Roundcube
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
2-3-1 (Patch Management)
2-5-1 (Web Application Security)
2-2-1 (Asset Management)
2-6-1 (Vulnerability Management)
🔵 SAMA CSF
3.3.3 (Patch Management)
3.3.4 (Vulnerability Management)
3.1.1 (Information Asset Management)
3.3.7 (Web Application Security)
🟡 ISO 27001:2022
A.8.8 (Management of Technical Vulnerabilities)
A.8.9 (Configuration Management)
A.8.23 (Web Filtering)
A.5.7 (Threat Intelligence)
🟣 PCI DSS v4.0
6.3.3 (Patching Security Vulnerabilities)
6.4 (Public-Facing Web Applications)
11.3 (Vulnerability Scanning)
🔗 References & Sources 0
No references.
📦 Affected Products / CPE 1 entries
Roundcube:Roundcube Webmail