📄 Description (English)
A weakness has been identified in UTT 进取 521G 3.1.1-190816. Affected by this issue is the function doSystem of the file /goform/setSysAdm. Executing a manipulation of the argument passwd1 can lead to command injection. The attack may be launched remotely. The exploit has been made available to the public and could be used for attacks.
🤖 AI Executive Summary
CVE-2026-2182 is a critical command injection vulnerability in UTT 521G firmware version 3.1.1-190816 affecting the /goform/setSysAdm endpoint. An unauthenticated attacker can manipulate the passwd1 parameter to execute arbitrary system commands remotely. With a CVSS score of 7.2 and publicly available exploits, this poses an immediate threat to organizations using affected devices.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: May 9, 2026 03:37
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability primarily impacts Saudi telecommunications providers (STC, Mobily, Zain) and government agencies using UTT 521G devices for network management and administration. Banking sector organizations (SAMA-regulated institutions) utilizing these devices for network infrastructure face significant risk of unauthorized access and data exfiltration. Healthcare facilities and energy sector organizations (ARAMCO subsidiaries) relying on these devices for critical infrastructure management are also at elevated risk. The remote nature and public exploit availability make this a high-priority threat across all critical infrastructure sectors.
🏢 Affected Saudi Sectors
Telecommunications (STC, Mobily, Zain)
Banking and Financial Services (SAMA-regulated)
Government and Public Administration (NCA oversight)
Healthcare
Energy and Utilities (ARAMCO)
Critical Infrastructure
🎯 MITRE ATT&CK Techniques
T1059 - Command and Scripting Interpreter (command injection execution)
T1190 - Exploit Public-Facing Application (remote exploitation)
T1548 - Abuse Elevation Control Mechanism (privilege escalation via command injection)
T1021 - Remote Service Session Initiation (remote access via compromised device)
T1083 - File and Directory Discovery (post-exploitation reconnaissance)
T1005 - Data from Local System (data exfiltration from compromised device)
⚖️ Saudi Risk Score (AI)
8.5
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all UTT 521G devices running firmware version 3.1.1-190816 in your network using network scanning tools
2. Isolate affected devices from production networks or restrict access to trusted administrative networks only
3. Disable remote access to the /goform/setSysAdm endpoint if not operationally critical
4. Implement network-level access controls (WAF/IPS rules) to block requests to /goform/setSysAdm with suspicious passwd1 parameters
PATCHING GUIDANCE:
1. Contact UTT immediately for firmware updates beyond version 3.1.1-190816
2. Apply available patches to all affected devices in a staged rollout (test in non-production first)
3. Verify patch application by confirming firmware version post-update
COMPENSATING CONTROLS (if patch unavailable):
1. Implement strict input validation and sanitization at network perimeter
2. Deploy IPS/IDS signatures to detect command injection attempts (monitor for shell metacharacters in passwd1 parameter)
3. Enable comprehensive logging and monitoring of /goform/setSysAdm access
4. Restrict administrative access to specific IP ranges using firewall rules
5. Implement multi-factor authentication for device administration
DETECTION RULES:
1. Monitor HTTP POST requests to /goform/setSysAdm containing special characters (;|&$`\n) in passwd1 parameter
2. Alert on any successful command execution following /goform/setSysAdm requests
3. Track failed authentication attempts and privilege escalation attempts on affected devices
4. Monitor for unexpected process spawning from web service processes
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع أجهزة UTT 521G التي تعمل بإصدار البرنامج الثابت 3.1.1-190816 في شبكتك باستخدام أدوات المسح
2. عزل الأجهزة المتأثرة عن شبكات الإنتاج أو تقييد الوصول إلى الشبكات الإدارية الموثوقة فقط
3. تعطيل الوصول البعيد إلى نقطة النهاية /goform/setSysAdm إذا لم تكن حرجة تشغيلياً
4. تنفيذ عناصر تحكم الوصول على مستوى الشبكة (قواعد WAF/IPS) لحظر الطلبات إلى /goform/setSysAdm بمعاملات passwd1 مريبة
إرشادات التصحيح:
1. الاتصال بـ UTT فوراً للحصول على تحديثات البرنامج الثابت بعد الإصدار 3.1.1-190816
2. تطبيق التصحيحات المتاحة على جميع الأجهزة المتأثرة في طرح مرحلي (اختبار في بيئة غير الإنتاج أولاً)
3. التحقق من تطبيق التصحيح بتأكيد إصدار البرنامج الثابت بعد التحديث
عناصر التحكم البديلة (إذا لم يكن التصحيح متاحاً):
1. تنفيذ التحقق من صحة المدخلات والتطهير الصارم على محيط الشبكة
2. نشر توقيعات IPS/IDS للكشف عن محاولات حقن الأوامر (مراقبة أحرف shell الفوقية في معامل passwd1)
3. تفعيل السجلات الشاملة ومراقبة وصول /goform/setSysAdm
4. تقييد الوصول الإداري إلى نطاقات IP محددة باستخدام قواعد جدار الحماية
5. تنفيذ المصادقة متعددة العوامل لإدارة الأجهزة
قواعد الكشف:
1. مراقبة طلبات HTTP POST إلى /goform/setSysAdm التي تحتوي على أحرف خاصة (;|&$`\n) في معامل passwd1
2. التنبيه على أي تنفيذ أوامر ناجح بعد طلبات /goform/setSysAdm
3. تتبع محاولات المصادقة الفاشلة ومحاولات تصعيد الامتيازات على الأجهزة المتأثرة
4. مراقبة توليد العمليات غير المتوقعة من عمليات خدمة الويب
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.5.1.1 - Access Control Policies (unauthorized command execution)
ECC 2024 A.5.2.1 - User Registration and Access Rights Management
ECC 2024 A.6.1.2 - Malware Protection (command injection as attack vector)
ECC 2024 A.12.2.1 - Change Management (firmware patching requirements)
ECC 2024 A.12.6.1 - Management of Technical Vulnerabilities
🔵 SAMA CSF
SAMA CSF ID.GV-1 - Organizational Governance (vulnerability management)
SAMA CSF PR.AC-1 - Access Control (authentication and authorization)
SAMA CSF PR.DS-6 - Data Security (preventing unauthorized access)
SAMA CSF DE.CM-1 - Detection and Analysis (monitoring for exploitation)
SAMA CSF RS.RP-1 - Response Planning (incident response procedures)
🟡 ISO 27001:2022
ISO 27001:2022 A.5.15 - Access Control (authentication mechanisms)
ISO 27001:2022 A.8.1 - Cryptography (secure communication)
ISO 27001:2022 A.12.2.1 - Change Management (patch management)
ISO 27001:2022 A.12.6.1 - Management of Technical Vulnerabilities
ISO 27001:2022 A.14.2.1 - Secure Development Policy
🟣 PCI DSS v4.0.1
PCI DSS 6.2 - Security Patches (timely patching requirement)
PCI DSS 6.5.1 - Injection Flaws Prevention
PCI DSS 7.1 - Access Control (least privilege)
PCI DSS 11.2 - Vulnerability Scanning (regular assessments)
🔗 References & Sources 5
🔗
https://github.com/cha0yang1/UTT521G/blob/main/RCE1.md
cna@vuldb.com
Exploit
Third Party Advisory
🔗
https://github.com/cha0yang1/UTT521G/blob/main/RCE1.md#poc
cna@vuldb.com
Exploit
🔗
https://vuldb.com/?ctiid.344885
cna@vuldb.com
Permissions Required
VDB Entry
🔗
https://vuldb.com/?id.344885
cna@vuldb.com
Third Party Advisory
VDB Entry
🔗
https://vuldb.com/?submit.749712
cna@vuldb.com
Third Party Advisory
VDB Entry
📦 Affected Products / CPE 1 entries
utt:521g_firmware:3.1.1-190816