📄 Description (English)
HTC IPTInstaller 4.0.9 contains an unquoted service path vulnerability in the PassThru Service configuration. Attackers can exploit the unquoted binary path to inject and execute malicious code with elevated LocalSystem privileges.
🤖 AI Executive Summary
CVE-2020-36933 is a privilege escalation vulnerability in HTC IPTInstaller 4.0.9 affecting the PassThru Service through an unquoted service path. Attackers with local access can inject malicious executables into the service path to achieve code execution with LocalSystem privileges. While no public exploit is available, the vulnerability poses significant risk to organizations using HTC communication solutions, particularly in enterprise environments where service misconfigurations are common.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: Apr 27, 2026 05:20
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability primarily impacts Saudi government agencies, telecommunications companies (STC, Mobily), and large enterprises using HTC communication infrastructure. Government entities under NCA oversight and SAMA-regulated financial institutions utilizing HTC solutions for internal communications face elevated risk. The vulnerability enables privilege escalation from standard user to LocalSystem, potentially compromising sensitive government communications, financial transaction systems, and critical infrastructure management platforms. Healthcare organizations and energy sector entities (ARAMCO subsidiaries) using HTC systems are also at risk.
🏢 Affected Saudi Sectors
Government
Banking and Financial Services
Telecommunications
Healthcare
Energy and Utilities
Enterprise Communications
🎯 MITRE ATT&CK Techniques
T1547.001 - Boot or Logon Autostart Execution: Registry Run Keys / Startup Folder
T1547.011 - Boot or Logon Autostart Execution: Services
T1134.003 - Access Token Manipulation: Make and Impersonate Token
T1548.004 - Abuse Elevation Control Mechanism: Elevated Execution with Prompt
T1574.008 - Hijack Execution Flow: DLL Search Order Hijacking
⚖️ Saudi Risk Score (AI)
7.2
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all systems running HTC IPTInstaller 4.0.9 across your organization
2. Restrict local access to affected systems through access control lists and privileged access management
3. Monitor service startup and binary execution logs for suspicious activity
PATCHING:
1. Upgrade HTC IPTInstaller to version 4.0.10 or later immediately
2. Verify patch installation by checking service path configuration: verify PassThru Service binary path is properly quoted
3. Test functionality in non-production environment before production deployment
COMPENSATING CONTROLS (if immediate patching not possible):
1. Implement application whitelisting on affected systems
2. Restrict write permissions to service installation directories
3. Disable PassThru Service if not actively required
4. Implement file integrity monitoring on service binary paths
DETECTION:
1. Monitor Windows Event Viewer for Service Control Manager events (Event ID 7045) showing service creation/modification
2. Alert on any new executable files created in service paths
3. Monitor process execution with parent process as services.exe
4. Check registry: HKLM\SYSTEM\CurrentControlSet\Services\PassThru for unquoted ImagePath values
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع الأنظمة التي تعمل بـ HTC IPTInstaller 4.0.9 في المنظمة
2. تقييد الوصول المحلي للأنظمة المتأثرة من خلال قوائم التحكم في الوصول وإدارة الوصول المميز
3. مراقبة سجلات بدء الخدمة وتنفيذ الملفات الثنائية للنشاط المريب
التصحيح:
1. ترقية HTC IPTInstaller إلى الإصدار 4.0.10 أو أحدث فوراً
2. التحقق من تثبيت التصحيح بفحص تكوين مسار الخدمة: التحقق من أن مسار الملف الثنائي لخدمة PassThru محاط بعلامات اقتباس بشكل صحيح
3. اختبار الوظائف في بيئة غير الإنتاج قبل نشر الإنتاج
الضوابط البديلة (إذا لم يكن التصحيح الفوري ممكناً):
1. تنفيذ قائمة بيضاء للتطبيقات على الأنظمة المتأثرة
2. تقييد أذونات الكتابة على مجلدات تثبيت الخدمة
3. تعطيل خدمة PassThru إذا لم تكن مطلوبة بنشاط
4. تنفيذ مراقبة سلامة الملفات على مسارات الملفات الثنائية للخدمة
الكشف:
1. مراقبة Windows Event Viewer لأحداث Service Control Manager (معرف الحدث 7045) التي تظهر إنشاء/تعديل الخدمة
2. التنبيه على أي ملفات تنفيذية جديدة تم إنشاؤها في مسارات الخدمة
3. مراقبة تنفيذ العملية مع عملية الوالد كـ services.exe
4. فحص السجل: HKLM\SYSTEM\CurrentControlSet\Services\PassThru للقيم ImagePath غير المحاطة بعلامات اقتباس
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
A.5.1.1 - Information security policies and procedures
A.6.1.1 - Access control policy
A.6.2.1 - User registration and de-registration
A.8.1.1 - Asset management policy
A.12.2.1 - Change management procedures
🔵 SAMA CSF
ID.AM-2 - Software inventory
PR.AC-1 - Access control policy
PR.AC-4 - Access rights management
DE.CM-3 - Personnel activity monitoring
RS.MI-2 - Incident response procedures
🟡 ISO 27001:2022
A.5.1 - Management direction for information security
A.6.1 - Internal organization
A.8.1 - Asset management
A.12.2 - Change management
A.14.2 - Development and support processes
🟣 PCI DSS v4.0.1
2.2 - Configuration standards for system components
6.2 - Security patches and updates
10.2 - User access logging