📄 Description (English)
Unraid Remote Code Execution Vulnerability — Unraid contains a vulnerability due to the insecure use of the extract PHP function that can be abused to execute remote code as root. This CVE is chainable with CVE-2020-5849 for initial access.
🤖 AI Executive Summary
CVE-2020-5847 is a critical remote code execution vulnerability in Unraid affecting versions prior to 6.8.3, allowing unauthenticated attackers to execute arbitrary code with root privileges through insecure use of PHP's extract() function. The vulnerability is chainable with CVE-2020-5849 for initial access and has publicly available exploits. This poses severe risk to organizations using Unraid for storage and virtualization infrastructure in Saudi Arabia.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: Apr 19, 2026 11:50
🇸🇦 Saudi Arabia Impact Assessment
Saudi organizations in data center operations, cloud infrastructure providers, and enterprise storage environments are at highest risk. Government agencies (NCA, CITC) using Unraid for backup and archival systems, banking sector (SAMA-regulated institutions) relying on Unraid for storage infrastructure, and healthcare organizations (MOH) utilizing Unraid for medical imaging storage face critical exposure. Telecommunications providers (STC, Mobily) and energy sector organizations may also be affected if Unraid is deployed in their infrastructure. Root-level code execution enables complete system compromise, data exfiltration, and lateral movement within networks.
🏢 Affected Saudi Sectors
Data Center Operations
Cloud Infrastructure Providers
Government (NCA, CITC)
Banking (SAMA-regulated institutions)
Healthcare (MOH)
Telecommunications (STC, Mobily)
Energy Sector
Enterprise Storage
🎯 MITRE ATT&CK Techniques
T1190 - Exploit Public-Facing Application
T1059.004 - Command and Scripting Interpreter: Unix Shell
T1548.004 - Abuse Elevation Control Mechanism: Elevated Execution with Prompt
T1543.003 - Create or Modify System Process: Windows Service
T1133 - External Remote Services
T1021.004 - Remote Services: SSH
⚖️ Saudi Risk Score (AI)
9.2
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all Unraid installations in your environment and document versions
2. Isolate affected Unraid systems from production networks if running versions prior to 6.8.3
3. Implement network segmentation to restrict access to Unraid management interfaces
4. Enable authentication and access controls on all Unraid web interfaces
PATCHING:
1. Upgrade all Unraid installations to version 6.8.3 or later immediately
2. Verify patch installation by checking version in Unraid web interface (Settings > System Information)
3. Test functionality in non-production environment before production deployment
COMPENSATING CONTROLS (if immediate patching not possible):
1. Implement Web Application Firewall (WAF) rules to block suspicious PHP extract() function calls
2. Restrict network access to Unraid web interface to authorized IP addresses only
3. Disable remote access to Unraid management interface; use VPN for administrative access
4. Monitor for exploitation attempts using IDS/IPS signatures
DETECTION RULES:
1. Monitor HTTP POST requests to Unraid web interface with suspicious parameters
2. Alert on any PHP execution with root privileges from web service processes
3. Track file modifications in Unraid system directories
4. Monitor for unexpected process spawning from PHP processes
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. حدد جميع تثبيتات Unraid في بيئتك وقثق الإصدارات
2. عزل أنظمة Unraid المتأثرة عن شبكات الإنتاج إذا كانت تعمل بإصدارات سابقة للإصدار 6.8.3
3. تطبيق تقسيم الشبكة لتقييد الوصول إلى واجهات إدارة Unraid
4. تفعيل المصادقة والتحكم في الوصول على جميع واجهات ويب Unraid
التصحيح:
1. ترقية جميع تثبيتات Unraid إلى الإصدار 6.8.3 أو أحدث على الفور
2. التحقق من تثبيت التصحيح بالتحقق من الإصدار في واجهة ويب Unraid (الإعدادات > معلومات النظام)
3. اختبار الوظائف في بيئة غير الإنتاج قبل نشر الإنتاج
الضوابط البديلة (إذا لم يكن التصحيح الفوري ممكناً):
1. تطبيق قواعد جدار حماية تطبيقات الويب (WAF) لحظر استدعاءات دالة extract() المريبة في PHP
2. تقييد الوصول إلى شبكة واجهة ويب Unraid إلى عناوين IP المصرح بها فقط
3. تعطيل الوصول البعيد إلى واجهة إدارة Unraid؛ استخدم VPN للوصول الإداري
4. مراقبة محاولات الاستغلال باستخدام توقيعات IDS/IPS
قواعد الكشف:
1. مراقبة طلبات HTTP POST إلى واجهة ويب Unraid مع معاملات مريبة
2. تنبيه على أي تنفيذ PHP بامتيازات الجذر من عمليات خدمة الويب
3. تتبع تعديلات الملفات في أدلة نظام Unraid
4. مراقبة توليد العمليات غير المتوقعة من عمليات PHP
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
A.12.6.1 - Management of technical vulnerabilities
A.14.2.1 - Secure development policy
A.12.3.1 - Event logging
A.12.4.1 - Event logging activation
🔵 SAMA CSF
ID.RA-1 - Asset management and criticality assessment
PR.IP-12 - Software, firmware, and information integrity mechanisms
DE.CM-1 - The network is monitored to detect potential cybersecurity events
RS.RP-1 - Response plan is executed during or after an incident
🟡 ISO 27001:2022
A.12.2.1 - Restrictions on software installation
A.12.6.1 - Management of technical vulnerabilities
A.14.2.1 - Secure development and change management
A.12.4.1 - Event logging
🟣 PCI DSS v4.0
6.2 - Ensure all system components and software are protected from known vulnerabilities
6.1 - Establish a process to identify and assign a risk rating to newly discovered security vulnerabilities
11.2 - Run automated vulnerability scanning tools regularly
🔗 References & Sources 0
No references.
📦 Affected Products / CPE 1 entries
Unraid:Unraid