📄 Description (English)
Acer Backup Manager 3.0.0.99 contains an unquoted service path vulnerability in the NTI IScheduleSvc service that allows local users to potentially execute arbitrary code. Attackers can exploit the unquoted path in C:\Program Files (x86)\NTI\Acer Backup Manager\ to inject malicious executables that would run with elevated LocalSystem privileges.
🤖 AI Executive Summary
CVE-2021-47826 is a local privilege escalation vulnerability in Acer Backup Manager 3.0.0.99 affecting the NTI IScheduleSvc service through an unquoted service path. Attackers with local access can inject malicious executables into the service path to execute arbitrary code with LocalSystem privileges. While no public exploit is available, the vulnerability poses significant risk to organizations using this backup solution, particularly in enterprise environments where multiple users have local system access.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: Apr 27, 2026 19:28
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability primarily impacts Saudi organizations in the banking, government, and healthcare sectors that deploy Acer Backup Manager for data protection. Saudi financial institutions regulated by SAMA, government agencies under NCA oversight, and healthcare providers managing sensitive patient data are at elevated risk. The vulnerability is particularly concerning for organizations with shared workstations or multi-user environments common in Saudi enterprises. Energy sector organizations (ARAMCO subsidiaries) and telecommunications providers (STC, Mobily) using this backup solution could face data exfiltration or system compromise risks.
🏢 Affected Saudi Sectors
Banking and Financial Services
Government and Public Administration
Healthcare and Medical Services
Energy and Utilities
Telecommunications
Enterprise IT Services
🎯 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
T1611 - Escape to Host
⚖️ Saudi Risk Score (AI)
7.2
/ 10.0
🔧 Remediation Steps (English)
Immediate Actions:
1. Identify all systems running Acer Backup Manager 3.0.0.99 across your organization
2. Restrict local user access to affected systems where possible
3. Implement file integrity monitoring on C:\Program Files (x86)\NTI\Acer Backup Manager\ directory
Patching Guidance:
1. Upgrade Acer Backup Manager to version 3.0.1.0 or later immediately
2. Verify the service path is properly quoted after upgrade
3. Restart the NTI IScheduleSvc service post-upgrade
Compensating Controls (if immediate patching not possible):
1. Implement NTFS permissions restricting write access to the service directory to Administrators only
2. Deploy AppLocker rules to prevent unauthorized executable execution in the service path
3. Enable Windows Defender Application Guard for vulnerable systems
4. Monitor service creation and modification events
Detection Rules:
1. Monitor Event ID 7045 (Service Installation) for NTI IScheduleSvc modifications
2. Alert on file creation/modification in C:\Program Files (x86)\NTI\Acer Backup Manager\ by non-admin users
3. Monitor process execution with parent process NTI IScheduleSvc
4. Track registry modifications to HKLM\SYSTEM\CurrentControlSet\Services\NTI IScheduleSvc
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع الأنظمة التي تقوم بتشغيل Acer Backup Manager 3.0.0.99 عبر مؤسستك
2. تقييد وصول المستخدمين المحليين إلى الأنظمة المتأثرة حيثما أمكن
3. تنفيذ مراقبة سلامة الملفات على دليل C:\Program Files (x86)\NTI\Acer Backup Manager\
إرشادات التصحيح:
1. ترقية Acer Backup Manager إلى الإصدار 3.0.1.0 أو أحدث فوراً
2. التحقق من أن مسار الخدمة مقتبس بشكل صحيح بعد الترقية
3. إعادة تشغيل خدمة NTI IScheduleSvc بعد الترقية
الضوابط البديلة (إذا لم يكن التصحيح الفوري ممكناً):
1. تنفيذ أذونات NTFS تقيد الوصول للكتابة إلى دليل الخدمة للمسؤولين فقط
2. نشر قواعد AppLocker لمنع تنفيذ الملفات التنفيذية غير المصرح بها في مسار الخدمة
3. تفعيل Windows Defender Application Guard للأنظمة الضعيفة
4. مراقبة أحداث إنشاء وتعديل الخدمة
قواعد الكشف:
1. مراقبة معرف الحدث 7045 (تثبيت الخدمة) لتعديلات NTI IScheduleSvc
2. التنبيه عند إنشاء/تعديل الملفات في C:\Program Files (x86)\NTI\Acer Backup Manager\ بواسطة مستخدمين غير إداريين
3. مراقبة تنفيذ العملية مع عملية الوالد NTI IScheduleSvc
4. تتبع تعديلات السجل إلى HKLM\SYSTEM\CurrentControlSet\Services\NTI IScheduleSvc
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
A.5.1.1 - Information security policies and procedures
A.5.2.1 - User access management
A.5.2.2 - Privileged access rights
A.5.2.3 - User access review
A.5.3.1 - Password management
A.8.1.1 - User endpoint devices
A.8.2.1 - Privileged access rights
A.8.2.2 - Sensitive system isolation
🔵 SAMA CSF
Governance - Policy and Risk Management
Governance - Compliance and Audit
Protection - Access Control
Protection - Data Protection
Detection - Monitoring and Logging
Response - Incident Management
🟡 ISO 27001:2022
5.3 - Segregation of duties
5.15 - Access control
5.16 - Access management
5.17 - Access rights review
5.18 - Allocation and de-allocation of access rights
8.1 - User endpoint devices
8.2 - Privileged access rights
8.3 - Information access restriction
8.22 - Monitoring activities
🟣 PCI DSS v4.0.1
Requirement 2.1 - Default security parameters
Requirement 2.2.4 - Configure system security parameters
Requirement 7 - Restrict access to data
Requirement 8 - Identify and authenticate access
Requirement 10 - Track and monitor access