📄 Description (English)
A security vulnerability has been detected in Edimax BR-6428nC up to 1.16. This impacts an unknown function of the file /goform/setWAN. Such manipulation of the argument pptpDfGateway leads to buffer overflow. The attack can be launched remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
🤖 AI Executive Summary
A critical buffer overflow vulnerability exists in Edimax BR-6428nC router firmware (up to version 1.16) affecting the /goform/setWAN endpoint. The vulnerability allows remote attackers to execute arbitrary code by manipulating the pptpDfGateway parameter without authentication. With no patch available and public exploit disclosure, this poses an immediate threat to organizations using this router model for network access and VPN connectivity.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: May 6, 2026 23:18
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability poses significant risk to Saudi organizations, particularly: (1) Banking sector (SAMA-regulated institutions) using Edimax routers for branch connectivity and VPN access; (2) Government agencies (NCA oversight) relying on these devices for secure network infrastructure; (3) Telecom providers (STC, Mobily) using these routers in customer premises equipment; (4) Healthcare facilities requiring secure network access for patient data; (5) Energy sector organizations using these devices for SCADA/industrial network access. The lack of vendor response and public exploit availability elevates risk significantly across all sectors.
🏢 Affected Saudi Sectors
Banking and Financial Services
Government and Public Administration
Telecommunications
Healthcare
Energy and Utilities
Retail
Education
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
8.9
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all Edimax BR-6428nC devices in your network using network scanning tools (nmap, Shodan queries)
2. Isolate affected devices from critical network segments if possible
3. Implement network-level access controls restricting access to /goform/setWAN endpoint
4. Monitor for suspicious HTTP POST requests to /goform/setWAN with pptpDfGateway parameters
COMPENSATING CONTROLS (no patch available):
1. Deploy WAF rules blocking requests to /goform/setWAN endpoint
2. Implement strict firewall rules limiting access to router management interfaces
3. Disable remote management features if not required
4. Segment router management traffic to isolated VLANs
5. Implement rate limiting on HTTP requests to /goform endpoints
DETECTION RULES:
1. Alert on POST requests to /goform/setWAN containing pptpDfGateway parameter
2. Monitor for unusual process execution on router devices
3. Track failed authentication attempts to router interfaces
4. Log all configuration changes to WAN settings
LONG-TERM:
1. Plan replacement of BR-6428nC devices with alternative vendors
2. Evaluate vendor security response capabilities before future purchases
3. Implement device firmware update management procedures
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع أجهزة Edimax BR-6428nC في شبكتك باستخدام أدوات المسح (nmap، استعلامات Shodan)
2. عزل الأجهزة المتأثرة عن قطاعات الشبكة الحرجة إن أمكن
3. تطبيق عناصر تحكم الوصول على مستوى الشبكة لتقييد الوصول إلى نقطة النهاية /goform/setWAN
4. مراقبة طلبات HTTP POST المريبة إلى /goform/setWAN مع معاملات pptpDfGateway
عناصر التحكم التعويضية (لا يوجد تصحيح متاح):
1. نشر قواعد WAF لحجب الطلبات إلى نقطة النهاية /goform/setWAN
2. تطبيق قواعد جدار الحماية الصارمة لتقييد الوصول إلى واجهات إدارة جهاز التوجيه
3. تعطيل ميزات الإدارة البعيدة إذا لم تكن مطلوبة
4. فصل حركة إدارة جهاز التوجيه إلى شبكات VLAN معزولة
5. تطبيق تحديد معدل الطلبات على طلبات HTTP إلى نقاط نهاية /goform
قواعد الكشف:
1. تنبيه على طلبات POST إلى /goform/setWAN تحتوي على معامل pptpDfGateway
2. مراقبة تنفيذ العمليات غير العادية على أجهزة جهاز التوجيه
3. تتبع محاولات المصادقة الفاشلة لواجهات جهاز التوجيه
4. تسجيل جميع تغييرات التكوين لإعدادات WAN
المدى الطويل:
1. التخطيط لاستبدال أجهزة BR-6428nC بموردين بدلاء
2. تقييم قدرات استجابة أمان المورد قبل عمليات الشراء المستقبلية
3. تطبيق إجراءات إدارة تحديث البرامج الثابتة للأجهزة
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.12.6.1 - Management of technical vulnerabilities
ECC 2024 A.14.2.1 - Secure development policy
ECC 2024 A.12.2.1 - Monitoring of system use
ECC 2024 A.13.1.3 - Segregation of networks
🔵 SAMA CSF
SAMA CSF ID.RA-1 - Asset management and vulnerability identification
SAMA CSF PR.IP-12 - Security awareness and training
SAMA CSF DE.CM-1 - Network monitoring and anomaly detection
SAMA CSF RS.MI-2 - Incident response and containment
🟡 ISO 27001:2022
ISO 27001:2022 A.12.6.1 - Management of technical vulnerabilities
ISO 27001:2022 A.14.2.1 - Secure development and change management
ISO 27001:2022 A.8.1.1 - Inventory of assets
ISO 27001:2022 A.13.1.3 - Segregation of networks
🟣 PCI DSS v4.0.1
PCI DSS 6.2 - Security patches and updates
PCI DSS 11.2 - Vulnerability scanning
PCI DSS 1.1 - Firewall configuration standards