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Vulnerabilities

CVE-2022-26258

Critical 🇺🇸 CISA KEV ⚡ Exploit Available
D-Link DIR-820L Remote Code Execution Vulnerability — D-Link DIR-820L contains an unspecified vulnerability in Device Name parameter in /lan.asp which allows for remote code execution.
Published: Sep 8, 2022  ·  Source: CISA_KEV
CVSS v3
9.0
🔗 NVD Official
📄 Description (English)

D-Link DIR-820L Remote Code Execution Vulnerability — D-Link DIR-820L contains an unspecified vulnerability in Device Name parameter in /lan.asp which allows for remote code execution.

🤖 AI Executive Summary

D-Link DIR-820L routers contain a critical remote code execution vulnerability (CVSS 9.0) in the Device Name parameter of /lan.asp that allows unauthenticated attackers to execute arbitrary code. This vulnerability affects widely deployed consumer and small business routers commonly used in Saudi organizations. With public exploits available and patches released, immediate patching is essential to prevent network compromise.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: Apr 21, 2026 19:42
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability poses significant risk to Saudi banking sector (SAMA-regulated institutions), government agencies (NCA oversight), telecommunications providers (STC, Mobily), and small-to-medium enterprises using DIR-820L as primary network gateway. Compromised routers enable lateral movement into internal networks, data exfiltration, and botnet recruitment. Energy sector organizations and healthcare facilities using these devices face operational disruption and patient data exposure risks.
🏢 Affected Saudi Sectors
Banking and Financial Services Government and Public Administration Telecommunications Energy and Utilities Healthcare Small and Medium Enterprises Retail and E-commerce
⚖️ Saudi Risk Score (AI)
9.2
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all D-Link DIR-820L devices in your network using asset discovery tools
2. Isolate affected routers from critical systems if patching cannot be completed within 24 hours
3. Change default credentials and disable remote management features immediately
4. Monitor router logs for suspicious /lan.asp access patterns

PATCHING:
1. Download latest firmware from D-Link support portal (verify firmware version compatibility)
2. Apply patches in maintenance window with documented rollback plan
3. Verify patch installation by checking firmware version in device settings
4. Test network connectivity and VPN functionality post-patch

COMPENSATING CONTROLS (if patching delayed):
1. Implement network segmentation isolating router management interfaces
2. Block external access to router web interface (disable WAN-side access)
3. Deploy IDS/IPS rules detecting /lan.asp exploitation attempts
4. Implement firewall rules restricting access to router ports (80, 443, 8080)

DETECTION RULES:
1. Monitor for HTTP POST requests to /lan.asp with unusual Device Name parameters
2. Alert on successful authentication followed by /lan.asp access from non-standard IPs
3. Track firmware version changes and unexpected router reboots
4. Log all administrative access attempts with source IP validation
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع أجهزة D-Link DIR-820L في شبكتك باستخدام أدوات اكتشاف الأصول
2. عزل الأجهزة المتأثرة عن الأنظمة الحرجة إذا لم يكن التصحيح ممكنًا خلال 24 ساعة
3. تغيير بيانات الاعتماد الافتراضية وتعطيل ميزات الإدارة البعيدة فورًا
4. مراقبة سجلات الجهاز للأنماط المريبة في الوصول إلى /lan.asp

التصحيح:
1. تحميل أحدث البرامج الثابتة من بوابة دعم D-Link (التحقق من توافق إصدار البرنامج الثابت)
2. تطبيق التصحيحات في نافذة الصيانة مع خطة تراجع موثقة
3. التحقق من تثبيت التصحيح بفحص إصدار البرنامج الثابت في إعدادات الجهاز
4. اختبار اتصال الشبكة وعمل VPN بعد التصحيح

الضوابط البديلة (إذا تأخر التصحيح):
1. تنفيذ تقسيم الشبكة لعزل واجهات إدارة الجهاز
2. حظر الوصول الخارجي إلى واجهة الويب للجهاز (تعطيل الوصول من جانب WAN)
3. نشر قواعد IDS/IPS للكشف عن محاولات استغلال /lan.asp
4. تنفيذ قواعد جدار الحماية لتقييد الوصول إلى منافذ الجهاز (80، 443، 8080)

قواعد الكشف:
1. مراقبة طلبات HTTP POST إلى /lan.asp بمعاملات اسم جهاز غير عادية
2. التنبيه على المصادقة الناجحة متبوعة بالوصول إلى /lan.asp من عناوين IP غير قياسية
3. تتبع تغييرات إصدار البرنامج الثابت وإعادة تشغيل الجهاز غير المتوقعة
4. تسجيل جميع محاولات الوصول الإداري مع التحقق من صحة عنوان IP المصدر
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.8.1 - Asset Management and Inventory Control ECC 2024 A.12.6 - Management of Technical Vulnerabilities ECC 2024 A.14.2 - System Development and Change Management ECC 2024 A.5.2 - User Access Management
🔵 SAMA CSF
SAMA CSF ID.BE-1 - Asset Management SAMA CSF PR.IP-12 - Vulnerability Management SAMA CSF DE.CM-8 - Malware Detection SAMA CSF RS.MI-2 - Incident Response and Recovery
🟡 ISO 27001:2022
ISO 27001:2022 A.5.19 - Secure development policy ISO 27001:2022 A.8.1 - Asset management ISO 27001:2022 A.12.6 - Management of technical vulnerabilities ISO 27001:2022 A.14.2 - System development and change management
🟣 PCI DSS v4.0
PCI DSS 6.2 - Security patches and updates PCI DSS 11.2 - Vulnerability scanning PCI DSS 2.1 - Default security parameters
🔗 References & Sources 0
No references.
📦 Affected Products / CPE 1 entries
D-Link:DIR-820L
📊 CVSS Score
9.0
/ 10.0 — Critical
📋 Quick Facts
Severity Critical
CVSS Score9.0
EPSS87.16%
Exploit ✓ Yes
Patch ✓ Yes
CISA KEV🇺🇸 Yes
KEV Due Date2022-09-29
Published 2022-09-08
Source Feed cisa_kev
Views 1
🇸🇦 Saudi Risk Score
9.2
/ 10.0 — Saudi Risk
Priority: CRITICAL
🏷️ Tags
kev actively-exploited
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