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Vulnerabilities

CVE-2016-11021

Critical 🇺🇸 CISA KEV ⚡ Exploit Available
D-Link DCS-930L Devices OS Command Injection Vulnerability — setSystemCommand on D-Link DCS-930L devices allows a remote attacker to execute code via an OS command.
Published: Mar 25, 2022  ·  Source: CISA_KEV
CVSS v3
9.0
🔗 NVD Official
📄 Description (English)

D-Link DCS-930L Devices OS Command Injection Vulnerability — setSystemCommand on D-Link DCS-930L devices allows a remote attacker to execute code via an OS command.

🤖 AI Executive Summary

CVE-2016-11021 is a critical OS command injection vulnerability in D-Link DCS-930L IP cameras that allows remote authenticated attackers to execute arbitrary operating system commands via the setSystemCommand function. With a CVSS score of 9.0 and publicly available exploits, this vulnerability poses an immediate risk to any organization using these devices. The D-Link DCS-930L is a widely deployed consumer and small business IP camera that may be present in surveillance systems across various sectors. Exploitation can lead to full device compromise, lateral movement, and use of the camera as a pivot point for further attacks.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: Apr 5, 2026 06:17
🇸🇦 Saudi Arabia Impact Assessment
كاميرات D-Link DCS-930L قد تكون منتشرة في المنشآت الصغيرة والمتوسطة والمباني الحكومية ومرافق البنية التحتية في المملكة العربية السعودية. القطاعات الأكثر عرضة للخطر تشمل: القطاع الحكومي (أنظمة المراقبة في المباني الحكومية)، قطاع التجزئة والمنشآت الصغيرة، قطاع الطاقة (مراقبة المواقع البعيدة)، والقطاع التعليمي. يمكن استخدام الأجهزة المخترقة كنقاط دخول للشبكات الداخلية أو كجزء من شبكات البوت نت مثل Mirai التي استهدفت أجهزة IoT مماثلة.
🏢 Affected Saudi Sectors
Government Energy Retail Education Healthcare Small and Medium Enterprises
⚖️ Saudi Risk Score (AI)
7.8
/ 10.0
🔧 Remediation Steps (English)
1. IMMEDIATE ACTIONS:
- Identify all D-Link DCS-930L devices on your network using asset discovery tools
- Isolate these devices on a separate VLAN with restricted network access
- Block external access to these devices immediately; do not expose them to the internet
- Change default credentials on all D-Link cameras

2. PATCHING GUIDANCE:
- Apply the latest firmware update from D-Link if available for DCS-930L
- Note: D-Link DCS-930L has reached end-of-life; consider replacing with supported models
- If no patch is available, plan for device replacement with modern, supported IP cameras

3. COMPENSATING CONTROLS:
- Place cameras behind a VPN for remote access
- Implement network segmentation to isolate IoT/surveillance devices
- Deploy IDS/IPS rules to detect OS command injection attempts targeting setSystemCommand
- Monitor for unusual outbound traffic from camera devices

4. DETECTION RULES:
- Monitor HTTP requests to the camera's web interface containing 'setSystemCommand'
- Alert on any command injection patterns (;, |, &&, backticks) in requests to camera endpoints
- Monitor for unexpected outbound connections from camera IP addresses
🔧 خطوات المعالجة (العربية)
1. إجراءات فورية:
- تحديد جميع أجهزة D-Link DCS-930L على شبكتك باستخدام أدوات اكتشاف الأصول
- عزل هذه الأجهزة على شبكة VLAN منفصلة مع تقييد الوصول
- حظر الوصول الخارجي لهذه الأجهزة فوراً وعدم تعريضها للإنترنت
- تغيير بيانات الاعتماد الافتراضية على جميع كاميرات D-Link

2. إرشادات التحديث:
- تطبيق آخر تحديث للبرنامج الثابت من D-Link إن توفر
- ملاحظة: DCS-930L وصلت لنهاية دورة حياتها؛ يُنصح باستبدالها بطرازات مدعومة
- إذا لم يتوفر تحديث، خطط لاستبدال الأجهزة بكاميرات IP حديثة ومدعومة

3. ضوابط تعويضية:
- وضع الكاميرات خلف VPN للوصول عن بُعد
- تنفيذ تجزئة الشبكة لعزل أجهزة IoT والمراقبة
- نشر قواعد IDS/IPS للكشف عن محاولات حقن الأوامر
- مراقبة حركة المرور غير العادية الصادرة من أجهزة الكاميرات

4. قواعد الكشف:
- مراقبة طلبات HTTP التي تحتوي على setSystemCommand
- التنبيه على أنماط حقن الأوامر في الطلبات
- مراقبة الاتصالات الصادرة غير المتوقعة من عناوين IP الكاميرات
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
2-3-1 (Asset Management) 2-5-1 (Network Security) 2-9-1 (Vulnerability Management) 2-13-1 (IoT Security)
🔵 SAMA CSF
3.3.3 (Network Security Management) 3.3.5 (Vulnerability Management) 3.3.7 (Access Control) 3.1.3 (Asset Management)
🟡 ISO 27001:2022
A.8.1 (User Endpoint Devices) A.8.9 (Configuration Management) A.8.20 (Networks Security) A.8.8 (Management of Technical Vulnerabilities)
🟣 PCI DSS v4.0
6.3.3 (Patching Security Vulnerabilities) 2.2.1 (System Configuration Standards) 11.3 (Vulnerability Scanning)
🔗 References & Sources 0
No references.
📦 Affected Products / CPE 1 entries
D-Link:DCS-930L Devices
📊 CVSS Score
9.0
/ 10.0 — Critical
📋 Quick Facts
Severity Critical
CVSS Score9.0
EPSS91.25%
Exploit ✓ Yes
Patch ✓ Yes
CISA KEV🇺🇸 Yes
KEV Due Date2022-04-15
Published 2022-03-25
Source Feed cisa_kev
Views 1
🇸🇦 Saudi Risk Score
7.8
/ 10.0 — Saudi Risk
🏷️ Tags
kev actively-exploited
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