📄 Description (English)
D-Link DNS-320 Device Command Injection Vulnerability — D-Link DNS-320 device contains a command injection vulnerability in the sytem_mgr.cgi component that may allow for remote code execution.
🤖 AI Executive Summary
D-Link DNS-320 NAS devices contain a critical command injection vulnerability in the sytem_mgr.cgi component allowing unauthenticated remote code execution with a CVSS score of 9.0. This vulnerability poses severe risk to organizations using these devices for data storage and backup, particularly in Saudi enterprises relying on network-attached storage for critical operations. Immediate patching is essential as exploits are publicly available.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: Apr 19, 2026 04:36
🇸🇦 Saudi Arabia Impact Assessment
High impact on Saudi banking sector (backup infrastructure), government agencies (NCA, CITC), healthcare institutions (MNGHA), and energy sector (ARAMCO subsidiary operations). Small and medium enterprises across all sectors using DNS-320 for NAS storage are particularly vulnerable. Potential for data exfiltration, ransomware deployment, and lateral movement into critical networks. Risk is amplified if devices are internet-facing or accessible from untrusted networks.
🏢 Affected Saudi Sectors
Banking and Financial Services
Government and Public Administration
Healthcare
Energy and Utilities
Telecommunications
Manufacturing
Retail
Education
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
9.2
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all D-Link DNS-320 devices in your network using network scanning tools
2. Isolate affected devices from internet access immediately
3. Restrict access to sytem_mgr.cgi to trusted IP addresses only via firewall rules
4. Disable remote management features if not required
PATCHING:
1. Apply latest firmware patches from D-Link immediately
2. Verify firmware version post-update (should be latest available for DNS-320)
3. Test patches in non-production environment first
COMPENSATING CONTROLS (if patching delayed):
1. Implement network segmentation - place NAS devices on isolated VLAN
2. Deploy WAF rules to block requests to sytem_mgr.cgi with suspicious parameters
3. Enable authentication and change default credentials
4. Monitor for command injection patterns in logs
DETECTION:
1. Monitor for HTTP requests to /cgi-bin/sytem_mgr.cgi with special characters (;|&`$)
2. Alert on unexpected process execution from web server processes
3. Track failed authentication attempts to management interface
4. Monitor outbound connections from NAS devices to suspicious destinations
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع أجهزة D-Link DNS-320 في الشبكة باستخدام أدوات المسح
2. عزل الأجهزة المتأثرة عن الإنترنت فوراً
3. تقييد الوصول إلى sytem_mgr.cgi للعناوين الموثوقة فقط عبر جدار الحماية
4. تعطيل ميزات الإدارة البعيدة إذا لم تكن مطلوبة
التصحيح:
1. تطبيق أحدث تحديثات البرامج الثابتة من D-Link فوراً
2. التحقق من إصدار البرنامج بعد التحديث
3. اختبار التصحيحات في بيئة غير الإنتاج أولاً
الضوابط البديلة (إذا تأخر التصحيح):
1. تطبيق تقسيم الشبكة - وضع أجهزة NAS على VLAN معزول
2. نشر قواعد WAF لحجب الطلبات إلى sytem_mgr.cgi بمعاملات مريبة
3. تفعيل المصادقة وتغيير بيانات الاعتماد الافتراضية
4. مراقبة أنماط حقن الأوامر في السجلات
الكشف:
1. مراقبة طلبات HTTP إلى /cgi-bin/sytem_mgr.cgi بأحرف خاصة
2. تنبيهات على تنفيذ العمليات غير المتوقعة
3. تتبع محاولات المصادقة الفاشلة
4. مراقبة الاتصالات الصادرة من أجهزة NAS
📋 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
🔵 SAMA CSF
ID.RA-1 - Asset management and vulnerability identification
PR.IP-12 - Security patch management
DE.CM-1 - Detection and monitoring
🟡 ISO 27001:2022
A.12.6.1 - Management of technical vulnerabilities
A.12.6.2 - Restrictions on software installation
A.14.2.1 - Secure development and change management
🟣 PCI DSS v4.0
6.2 - Security patches and updates
11.2 - Vulnerability scanning
🔗 References & Sources 0
No references.
📦 Affected Products / CPE 1 entries
D-Link:DNS-320 Device