📄 Description (English)
D-Link DIR-823X — CVE-2025-29635
D-Link DIR-823X contains a command injection vulnerability that allows an authorized attacker to execute arbitrary commands on remote devices by sending a POST request to /goform/set_prohibiting via the corresponding function. The impacted product could be end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue product utilization.
Required Action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Due Date: 2026-05-08
🤖 AI Executive Summary
D-Link DIR-823X routers contain a critical command injection vulnerability (CVE-2025-29635, CVSS 9.8) allowing authenticated attackers to execute arbitrary commands via the /goform/set_prohibiting endpoint. The affected product is end-of-life with no patch available, requiring immediate discontinuation or network isolation. This poses severe risk to Saudi organizations using legacy D-Link infrastructure for network access control.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: Apr 25, 2026 02:38
🇸🇦 Saudi Arabia Impact Assessment
Critical impact for Saudi government agencies, educational institutions, and small-to-medium enterprises (SMEs) that may still operate legacy D-Link DIR-823X routers for network perimeter defense. Banking sector (SAMA-regulated) faces elevated risk if these devices are used in branch networks or remote access infrastructure. Telecom operators (STC, Mobily, Zain) managing customer-facing network equipment are at risk. Healthcare facilities using these routers for network segmentation could experience patient data exposure. Energy sector (ARAMCO, utilities) relying on legacy network infrastructure faces operational technology (OT) network compromise risks.
🏢 Affected Saudi Sectors
Government
Banking
Healthcare
Education
Telecommunications
Energy
Small-to-Medium Enterprises (SMEs)
🎯 MITRE ATT&CK Techniques
T1190 — Exploit Public-Facing Application (POST request to vulnerable endpoint)
T1059 — Command and Scripting Interpreter (arbitrary command execution)
T1021 — Remote Service Session Initiation (router management access)
T1098 — Account Manipulation (potential credential abuse post-compromise)
T1562 — Impair Defenses (disable logging/monitoring on compromised router)
T1070 — Indicator Removal (clear router logs post-exploitation)
⚖️ Saudi Risk Score (AI)
9.2
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Inventory all D-Link DIR-823X devices across your organization and document their network location and function
2. Restrict network access to affected devices — implement network segmentation and disable remote management (SSH/HTTP/HTTPS access)
3. Monitor for suspicious POST requests to /goform/set_prohibiting endpoint using IDS/IPS rules
4. Disable the /goform/set_prohibiting function if accessible via web interface settings
PATCHING GUIDANCE:
1. Contact D-Link support to confirm if any security updates exist (unlikely given EoL status)
2. If no patch available, plan immediate replacement with supported D-Link models or alternative vendors
3. Document replacement timeline and communicate to stakeholders
COMPENSATING CONTROLS:
1. Implement network access control (NAC) to restrict which users/devices can reach the router management interface
2. Deploy Web Application Firewall (WAF) rules to block POST requests to /goform/set_prohibiting
3. Enable router authentication logging and forward logs to SIEM for real-time alerting
4. Implement VPN-only access for remote router management
5. Disable all unnecessary services on the router (UPnP, WPS, remote management)
DETECTION RULES:
1. Alert on any POST requests to /goform/set_prohibiting from internal or external sources
2. Monitor for unusual process execution on router (if accessible via SSH)
3. Track failed authentication attempts to router management interface
4. Flag any configuration changes to the router via web interface
5. Monitor outbound connections from router to external command-and-control servers
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. قم بحصر جميع أجهزة D-Link DIR-823X عبر مؤسستك وتوثيق موقعها الشبكي ووظيفتها
2. قيّد الوصول إلى الأجهزة المتأثرة — طبّق تقسيم الشبكة وعطّل الإدارة البعيدة (وصول SSH/HTTP/HTTPS)
3. راقب طلبات POST المريبة إلى نقطة النهاية /goform/set_prohibiting باستخدام قواعد IDS/IPS
4. عطّل وظيفة /goform/set_prohibiting إن أمكن عبر إعدادات واجهة الويب
إرشادات التصحيح:
1. اتصل بدعم D-Link للتأكد من وجود أي تحديثات أمان (غير محتمل نظراً لحالة EoL)
2. إذا لم يكن هناك تصحيح متاح، خطط للاستبدال الفوري بنماذج D-Link مدعومة أو بدائل
3. وثّق الجدول الزمني للاستبدال وأبلغ أصحاب المصلحة
الضوابط التعويضية:
1. طبّق التحكم في الوصول إلى الشبكة (NAC) لتقييد المستخدمين/الأجهزة التي يمكنها الوصول إلى واجهة إدارة الموجه
2. نشّر قواعد جدار حماية تطبيقات الويب (WAF) لحظر طلبات POST إلى /goform/set_prohibiting
3. فعّل تسجيل مصادقة الموجه وأرسل السجلات إلى SIEM للتنبيهات في الوقت الفعلي
4. طبّق وصول VPN فقط لإدارة الموجه البعيدة
5. عطّل جميع الخدمات غير الضرورية على الموجه (UPnP, WPS, الإدارة البعيدة)
قواعد الكشف:
1. تنبيه على أي طلبات POST إلى /goform/set_prohibiting من مصادر داخلية أو خارجية
2. راقب تنفيذ العمليات غير العادية على الموجه (إذا كان قابلاً للوصول عبر SSH)
3. تتبع محاولات المصادقة الفاشلة لواجهة إدارة الموجه
4. علّم أي تغييرات في إعدادات الموجه عبر واجهة الويب
5. راقب الاتصالات الصادرة من الموجه إلى خوادم التحكم والقيادة الخارجية
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
A.5.1.1 — Information security policies and procedures (network device management)
A.8.1.1 — User access management (router administrative access control)
A.8.2.1 — User registration and de-registration (device lifecycle management)
A.12.2.1 — Change management (legacy device replacement procedures)
A.12.4.1 — Event logging (router access and configuration logging)
A.13.1.1 — Network security (network segmentation and perimeter defense)
🔵 SAMA CSF
ID.AM-2 — Asset management (inventory and lifecycle of network devices)
PR.AC-1 — Access control policy (router management access restrictions)
PR.PT-1 — Security awareness and training (legacy device risks)
DE.CM-1 — Detection and analysis (monitoring router for suspicious activity)
RS.RP-1 — Response planning (incident response for compromised routers)
🟡 ISO 27001:2022
A.5.1 — Management direction for information security (device lifecycle policies)
A.8.1 — User access management (administrative access to network devices)
A.12.2 — Change management (replacement of EoL devices)
A.12.4 — Logging and monitoring (router access logs and event monitoring)
A.13.1 — Network security (network segmentation and access control)
🟣 PCI DSS v4.0
Requirement 1.1 — Firewall configuration standards (router security baseline)
Requirement 2.1 — Default security parameters (disable unnecessary services)
Requirement 6.2 — Security patches and updates (EoL device replacement)
Requirement 10.2 — Logging and monitoring (router access logging)
🔗 References & Sources 0
No references.