CVE-2024-7248
📋 TL;DR
This vulnerability in Comodo Internet Security Pro allows local attackers to escalate privileges from low-privileged user accounts to SYSTEM level by exploiting a directory traversal flaw in the update mechanism. Attackers must first gain execution capability on the target system. Only users running Comodo Internet Security Pro are affected.
💻 Affected Systems
- Comodo Internet Security Pro
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full SYSTEM compromise allowing complete control of the system, installation of persistent malware, credential theft, and lateral movement across the network.
Likely Case
Local privilege escalation from standard user to SYSTEM, enabling installation of additional malware, disabling security controls, and persistence mechanisms.
If Mitigated
Limited impact if proper endpoint protection, least privilege principles, and application control are implemented, though the vulnerability still exists.
🎯 Exploit Status
Exploitation requires local access and ability to execute code. The directory traversal flaw suggests straightforward exploitation once initial access is achieved.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified in references; check Comodo advisory for exact version
Vendor Advisory: Not provided in references; check Comodo security advisories
Restart Required: Yes
Instructions:
1. Open Comodo Internet Security Pro. 2. Navigate to Settings/Update. 3. Check for and apply available updates. 4. Restart the system to ensure patch is fully applied.
🔧 Temporary Workarounds
Restrict local user privileges
windowsImplement least privilege principles to limit initial attack surface
Disable unnecessary Comodo services
windowsTemporarily disable Comodo update service if not critically needed
sc stop "Comodo Update Service"
sc config "Comodo Update Service" start= disabled
🧯 If You Can't Patch
- Remove Comodo Internet Security Pro and replace with alternative security solution
- Implement application control policies to block execution of suspicious processes
🔍 How to Verify
Check if Vulnerable:
Check Comodo Internet Security Pro version and compare against patched versions in vendor advisoryCheck Version:
Open Comodo Internet Security Pro → Help → AboutVerify Fix Applied:
Verify Comodo is updated to latest version and attempt to reproduce directory traversal (not recommended in production)📡 Detection & Monitoring
Log Indicators:
- Unusual file operations in Comodo update directories
- Process creation with SYSTEM privileges from user accounts
- Directory traversal patterns in file paths
Network Indicators:
- Unusual outbound connections from Comodo update processes
SIEM Query:
Process creation where parent_process contains 'comodo' and user changes from standard user to SYSTEM