📄 Description (English)
PDF Complete 3.5.310.2002 contains an unquoted service path vulnerability in its pdfsvc.exe service configuration. Attackers can exploit the unquoted path to inject and execute malicious code with elevated LocalSystem privileges.
🤖 AI Executive Summary
PDF Complete 3.5.310.2002 contains a critical unquoted service path vulnerability in pdfsvc.exe that allows local attackers to execute arbitrary code with LocalSystem privileges. This vulnerability poses a significant risk to organizations using this PDF software, particularly in environments where user access controls are not strictly enforced. Immediate patching is strongly recommended to prevent privilege escalation attacks.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: Apr 27, 2026 10:33
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability primarily impacts Saudi organizations in the following sectors: (1) Banking and Financial Services (SAMA-regulated entities) - where PDF processing is critical for document management and compliance; (2) Government agencies and ministries using PDF Complete for official documentation; (3) Healthcare institutions (MOH) processing sensitive patient records in PDF format; (4) Energy sector (ARAMCO and related entities) managing technical documentation; (5) Telecommunications (STC, Mobily) for billing and customer documentation. The LocalSystem privilege escalation is particularly dangerous in multi-user environments common in Saudi enterprises, potentially allowing attackers to compromise entire systems and access sensitive data.
🏢 Affected Saudi Sectors
Banking and Financial Services
Government and Public Administration
Healthcare
Energy and Utilities
Telecommunications
Insurance
Legal Services
Education
🎯 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
T1036.003 - Masquerading: Rename System Utilities
T1053.005 - Scheduled Task/Job: Scheduled Task
T1569.002 - System Services: Service Execution
⚖️ Saudi Risk Score (AI)
7.8
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all systems running PDF Complete 3.5.310.2002 using asset inventory tools and network scanning
2. Restrict local user access to affected systems where possible
3. Implement application whitelisting to prevent unauthorized executable execution
PATCHING GUIDANCE:
1. Upgrade PDF Complete to version 3.5.310.2003 or later immediately
2. Test patches in non-production environments before enterprise deployment
3. Prioritize patching for systems with multiple user accounts or remote access capabilities
COMPENSATING CONTROLS (if immediate patching not possible):
1. Disable pdfsvc.exe service if not actively required
2. Implement strict file system permissions on service directories
3. Use Windows AppLocker or similar tools to restrict process execution
4. Monitor service startup and execution logs for suspicious activity
DETECTION RULES:
1. Monitor for pdfsvc.exe service path modifications in Windows Registry (HKLM\SYSTEM\CurrentControlSet\Services\pdfsvc)
2. Alert on any executable files created in PDF Complete installation directories
3. Track LocalSystem privilege escalation attempts from low-privilege processes
4. Monitor Windows Event Viewer for Service Control Manager (Event ID 7045) entries related to pdfsvc
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع الأنظمة التي تقوم بتشغيل PDF Complete 3.5.310.2002 باستخدام أدوات جرد الأصول والمسح الشبكي
2. تقييد وصول المستخدمين المحليين إلى الأنظمة المتأثرة حيثما أمكن
3. تنفيذ قائمة بيضاء للتطبيقات لمنع تنفيذ الملفات التنفيذية غير المصرح بها
إرشادات التصحيح:
1. ترقية PDF Complete إلى الإصدار 3.5.310.2003 أو أحدث على الفور
2. اختبار التصحيحات في بيئات غير الإنتاج قبل النشر على مستوى المؤسسة
3. إعطاء الأولوية لتصحيح الأنظمة التي تحتوي على حسابات مستخدمين متعددة أو إمكانيات الوصول عن بعد
الضوابط البديلة (إذا لم يكن التصحيح الفوري ممكناً):
1. تعطيل خدمة pdfsvc.exe إذا لم تكن مطلوبة بنشاط
2. تنفيذ أذونات نظام الملفات الصارمة على دلائل الخدمة
3. استخدام Windows AppLocker أو أدوات مماثلة لتقييد تنفيذ العملية
4. مراقبة سجلات بدء التشغيل والتنفيذ للنشاط المريب
قواعد الكشف:
1. مراقبة تعديلات مسار خدمة pdfsvc.exe في سجل Windows (HKLM\SYSTEM\CurrentControlSet\Services\pdfsvc)
2. تنبيه على أي ملفات قابلة للتنفيذ تم إنشاؤها في دلائل تثبيت PDF Complete
3. تتبع محاولات تصعيد امتيازات LocalSystem من العمليات منخفضة الامتياز
4. مراقبة Windows Event Viewer لإدخالات Service Control Manager (معرف الحدث 7045) المتعلقة بـ pdfsvc
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
A.5.1.1 - Information security policies and procedures
A.5.2.1 - User access management and authorization
A.5.2.2 - Privileged access rights management
A.5.2.3 - User access review
A.5.3.1 - Password management
A.5.4.1 - Access control to information and other related assets
A.5.4.5 - Access control for information systems and applications
A.6.2.1 - Event logging
A.6.2.2 - Protection of log information
A.6.2.3 - Administrator and operator logs
A.6.2.4 - Clock synchronization
A.7.1.1 - Secure development policy
A.7.2.1 - Secure development environment
A.7.2.2 - Change management
A.7.2.3 - Technical review of applications after platform changes
🔵 SAMA CSF
Governance & Risk Management - System and Information Integrity
Information & Cybersecurity - Access Control and Authentication
Information & Cybersecurity - Audit and Accountability
Operational Resilience - Vulnerability Management
Operational Resilience - Patch Management
🟡 ISO 27001:2022
5.1 - Policies for information security
5.2 - Information security roles and responsibilities
5.3 - Segregation of duties
6.1 - Screening
6.2 - Terms and conditions of employment
6.5 - Access control
6.6 - Information security in supplier relationships
8.1 - Information security in ICT
8.2 - Security of development, test and acceptance environments
8.3 - Data protection
8.4 - Information security monitoring
8.5 - Management of technical vulnerabilities
8.6 - Restrictions on software installation
🟣 PCI DSS v4.0.1
Requirement 1 - Install and maintain a firewall configuration
Requirement 2 - Do not use vendor-supplied defaults
Requirement 6 - Develop and maintain secure systems and applications
Requirement 6.2 - Ensure that all system components and software are protected from known vulnerabilities
Requirement 8 - Identify and authenticate access to system components
Requirement 10 - Track and monitor all access to network resources and cardholder data