📄 Description (English)
A vulnerability was detected in UTT 进取 520W 1.7.7-180627. Affected by this issue is the function strcpy of the file /goform/formWebAuthGlobalConfig. Performing a manipulation results in buffer overflow. The attack is possible to be carried out remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
🤖 AI Executive Summary
A critical remote buffer overflow vulnerability exists in UTT 520W firmware version 1.7.7-180627 affecting the web authentication configuration endpoint. The vulnerability allows unauthenticated remote attackers to execute arbitrary code through a malicious request to /goform/formWebAuthGlobalConfig. With public exploit availability and vendor non-responsiveness, immediate patching is essential for all affected deployments in Saudi Arabia.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: Apr 22, 2026 10:26
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability poses significant risk to Saudi telecommunications infrastructure (STC, Mobily, Zain), government network access points, and banking sector authentication systems. UTT 520W devices are commonly deployed as network access controllers and authentication gateways in enterprise environments across Saudi Arabia. Successful exploitation could lead to unauthorized network access, credential theft, and lateral movement within critical infrastructure. Government entities under NCA oversight and SAMA-regulated financial institutions face elevated risk due to reliance on such devices for perimeter security.
🏢 Affected Saudi Sectors
Telecommunications (STC, Mobily, Zain)
Banking and Financial Services (SAMA-regulated)
Government and Public Administration (NCA oversight)
Energy and Utilities (ARAMCO, SEC)
Healthcare (MOH facilities)
Education (Universities and research institutions)
Enterprise IT Infrastructure
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
8.9
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all UTT 520W devices in your network using asset management tools and network scanning
2. Isolate affected devices from internet-facing access immediately or implement strict network segmentation
3. Disable remote access to /goform/formWebAuthGlobalConfig endpoint if possible through firewall rules
4. Monitor authentication logs for suspicious activity patterns
PATCHING GUIDANCE:
1. Contact UTT vendor for available firmware patches beyond version 1.7.7-180627
2. Test patches in isolated lab environment before production deployment
3. Schedule maintenance windows for firmware updates on all affected devices
4. Maintain backup configurations before applying patches
COMPENSATING CONTROLS (if patch unavailable):
1. Implement Web Application Firewall (WAF) rules to block requests to /goform/formWebAuthGlobalConfig
2. Restrict access to management interfaces to whitelisted IP addresses only
3. Deploy network segmentation to limit device accessibility
4. Enable verbose logging and implement SIEM alerting for authentication endpoint access
DETECTION RULES:
1. Monitor for HTTP POST requests to /goform/formWebAuthGlobalConfig with unusually large payloads (>1024 bytes)
2. Alert on any non-standard characters or binary data in formWebAuthGlobalConfig parameters
3. Track failed authentication attempts followed by configuration changes
4. Monitor for process execution from web service processes on UTT devices
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع أجهزة UTT 520W في شبكتك باستخدام أدوات إدارة الأصول والمسح الشبكي
2. عزل الأجهزة المتأثرة عن الوصول المواجه للإنترنت فوراً أو تطبيق تقسيم شبكي صارم
3. تعطيل الوصول البعيد إلى نقطة نهاية /goform/formWebAuthGlobalConfig إن أمكن من خلال قواعد جدار الحماية
4. مراقبة سجلات المصادقة للأنشطة المريبة
إرشادات التصحيح:
1. الاتصال ببائع UTT للحصول على تحديثات البرنامج الثابت المتاحة بعد الإصدار 1.7.7-180627
2. اختبار التصحيحات في بيئة معملية معزولة قبل نشرها في الإنتاج
3. جدولة نوافذ الصيانة لتحديثات البرنامج الثابت على جميع الأجهزة المتأثرة
4. الاحتفاظ بنسخ احتياطية من التكوينات قبل تطبيق التصحيحات
الضوابط البديلة (إذا لم يكن التصحيح متاحاً):
1. تطبيق قواعد جدار تطبيقات الويب (WAF) لحظر الطلبات إلى /goform/formWebAuthGlobalConfig
2. تقييد الوصول إلى واجهات الإدارة بعناوين IP المدرجة في القائمة البيضاء فقط
3. نشر تقسيم الشبكة لتحديد إمكانية الوصول إلى الجهاز
4. تفعيل السجلات المفصلة وتطبيق التنبيهات على نظام إدارة معلومات الأمان (SIEM) لوصول نقطة نهاية المصادقة
قواعد الكشف:
1. مراقبة طلبات HTTP POST إلى /goform/formWebAuthGlobalConfig مع حمولات كبيرة بشكل غير عادي (>1024 بايت)
2. التنبيه على أي أحرف غير قياسية أو بيانات ثنائية في معاملات formWebAuthGlobalConfig
3. تتبع محاولات المصادقة الفاشلة متبوعة بتغييرات التكوين
4. مراقبة تنفيذ العمليات من عمليات خدمة الويب على أجهزة UTT
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.5.1.1 - Network access control and authentication mechanisms
ECC 2024 A.6.2.1 - Secure development and vulnerability management
ECC 2024 A.8.2.3 - Monitoring and logging of security events
ECC 2024 A.12.6.1 - Management of technical vulnerabilities
🔵 SAMA CSF
SAMA CSF ID.BE-1 - Asset management and inventory
SAMA CSF PR.AC-1 - Access control policies and procedures
SAMA CSF PR.PT-1 - Security awareness and training
SAMA CSF DE.CM-1 - Detection and analysis of anomalies
🟡 ISO 27001:2022
ISO 27001:2022 A.5.23 - Information security for supplier relationships
ISO 27001:2022 A.8.1 - User endpoint devices
ISO 27001:2022 A.8.2 - Privileged access rights
ISO 27001:2022 A.8.3 - Information access restriction
🟣 PCI DSS v4.0.1
PCI DSS 6.2 - Security patches and updates
PCI DSS 6.5.1 - Injection flaws prevention
PCI DSS 11.2 - Vulnerability scanning and assessment
🔗 References & Sources 4
🔗
https://github.com/cymiao1978/cve/blob/main/new/32.md
cna@vuldb.com
Exploit
Third Party Advisory
🔗
https://vuldb.com/?ctiid.341728
cna@vuldb.com
Permissions Required
VDB Entry
🔗
https://vuldb.com/?id.341728
cna@vuldb.com
Third Party Advisory
VDB Entry
🔗
https://vuldb.com/?submit.735296
cna@vuldb.com
Third Party Advisory
VDB Entry
📦 Affected Products / CPE 1 entries
utt:520w_firmware