📄 Description (English)
A vulnerability was found in UTT 进取 520W 1.7.7-180627. The impacted element is the function strcpy of the file /goform/formP2PLimitConfig. Performing a manipulation of the argument except results in buffer overflow. The attack is possible to be carried out remotely. The exploit has been made public and could 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 P2P limit configuration function. The vulnerability allows unauthenticated remote attackers to execute arbitrary code through a manipulated 'except' parameter. 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 14:34
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability primarily impacts Saudi telecommunications infrastructure (STC, Mobily, Zain) and government agencies using UTT 520W devices for network management and monitoring. Banking sector (SAMA-regulated institutions) utilizing these devices for secure communications faces significant risk. Energy sector (ARAMCO, SEC) and healthcare facilities employing UTT equipment for remote access and VPN services are also at elevated risk. The remote, unauthenticated nature of the exploit makes this particularly dangerous for critical infrastructure operators.
🏢 Affected Saudi Sectors
Telecommunications (STC, Mobily, Zain)
Banking and Financial Services (SAMA-regulated)
Government and Public Administration (NCA oversight)
Energy (ARAMCO, SEC)
Healthcare
Critical Infrastructure
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
9.2
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all UTT 520W devices running firmware 1.7.7-180627 across your organization using network scanning tools
2. Isolate affected devices from production networks or implement network segmentation if immediate patching is not possible
3. Disable remote access to the /goform/formP2PLimitConfig endpoint if functionality permits
4. Monitor for exploitation attempts using IDS/IPS signatures
PATCHING GUIDANCE:
1. Contact UTT vendor immediately for firmware updates beyond 1.7.7-180627
2. Test patches in isolated lab environment before production deployment
3. Implement staged rollout across network segments
4. Verify patch application by confirming firmware version post-update
COMPENSATING CONTROLS (if patch unavailable):
1. Implement strict network access controls limiting access to management interfaces
2. Deploy Web Application Firewall (WAF) rules blocking requests to /goform/formP2PLimitConfig
3. Enable authentication enforcement on all management interfaces
4. Implement rate limiting on configuration endpoints
DETECTION RULES:
1. Monitor for HTTP POST requests to /goform/formP2PLimitConfig with oversized 'except' parameters
2. Alert on any successful code execution attempts from network management interfaces
3. Track firmware version changes on UTT devices
4. Monitor for unusual process execution following P2P configuration changes
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع أجهزة UTT 520W التي تعمل بالإصدار 1.7.7-180627 عبر أدوات المسح الشبكي
2. عزل الأجهزة المتأثرة عن شبكات الإنتاج أو تطبيق تقسيم الشبكة إذا لم يكن التصحيح الفوري ممكنًا
3. تعطيل الوصول البعيد إلى نقطة النهاية /goform/formP2PLimitConfig إن أمكن
4. مراقبة محاولات الاستغلال باستخدام توقيعات IDS/IPS
إرشادات التصحيح:
1. الاتصال بفوري ببائع UTT للحصول على تحديثات البرنامج الثابت
2. اختبار التصحيحات في بيئة معملية معزولة قبل نشر الإنتاج
3. تطبيق النشر المرحلي عبر قطاعات الشبكة
4. التحقق من تطبيق التصحيح بتأكيد إصدار البرنامج الثابت بعد التحديث
الضوابط البديلة:
1. تطبيق ضوابط وصول شبكة صارمة تحد من الوصول إلى واجهات الإدارة
2. نشر قواعد جدار حماية تطبيقات الويب (WAF) لحظر الطلبات إلى /goform/formP2PLimitConfig
3. تفعيل فرض المصادقة على جميع واجهات الإدارة
4. تطبيق تحديد معدل على نقاط نهاية التكوين
قواعد الكشف:
1. مراقبة طلبات HTTP POST إلى /goform/formP2PLimitConfig بمعاملات 'except' كبيرة الحجم
2. التنبيه على أي محاولات تنفيذ كود ناجحة من واجهات إدارة الشبكة
3. تتبع تغييرات إصدار البرنامج الثابت على أجهزة UTT
4. مراقبة تنفيذ العمليات غير العادية بعد تغييرات تكوين P2P
📋 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.13.1.1 - Network security perimeter
🔵 SAMA CSF
SAMA CSF ID.RA-1 - Asset management and vulnerability identification
SAMA CSF PR.IP-12 - Security patch management
SAMA CSF DE.CM-1 - Detection and monitoring systems
SAMA CSF RS.MI-1 - Incident response procedures
🟡 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.12.2.1 - Monitoring of information systems
🟣 PCI DSS v4.0.1
PCI DSS 6.2 - Security patch management
PCI DSS 11.2 - Vulnerability scanning
PCI DSS 6.5.1 - Injection flaws prevention
🔗 References & Sources 4
🔗
https://github.com/cymiao1978/cve/blob/main/new/40.md
cna@vuldb.com
Exploit
Third Party Advisory
🔗
https://vuldb.com/?ctiid.344638
cna@vuldb.com
Permissions Required
VDB Entry
🔗
https://vuldb.com/?id.344638
cna@vuldb.com
Third Party Advisory
VDB Entry
🔗
https://vuldb.com/?submit.745265
cna@vuldb.com
Third Party Advisory
VDB Entry
📦 Affected Products / CPE 1 entries
utt:520w_firmware:1.7.7-180627