CVE-2024-7252
📋 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 symbolic link handling flaw in the cmdagent executable. Attackers must first gain execution capability on the target system. Only users of Comodo Internet Security Pro are affected.
💻 Affected Systems
- Comodo Internet Security Pro
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with SYSTEM privileges, enabling installation of persistent malware, credential theft, and full control over the affected system.
Likely Case
Local privilege escalation allowing attackers to bypass security controls, install additional malware, and maintain persistence on compromised systems.
If Mitigated
Limited impact if proper endpoint protection, least privilege principles, and application whitelisting are enforced.
🎯 Exploit Status
Exploitation requires local access and ability to create symbolic links. The vulnerability is in ZDI's disclosure program, suggesting professional exploit development.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified in provided references, but ZDI advisories typically indicate vendor has released fixes.
Vendor Advisory: https://www.zerodayinitiative.com/advisories/ZDI-24-957/
Restart Required: Yes
Instructions:
1. Open Comodo Internet Security Pro. 2. Check for updates in the application interface. 3. Install all available updates. 4. Restart the system to ensure proper patch application.
🔧 Temporary Workarounds
Disable cmdagent service
windowsTemporarily disable the vulnerable cmdagent service to prevent exploitation.
sc stop cmdagent
sc config cmdagent start= disabled
Restrict symbolic link creation
windowsConfigure Windows security policy to restrict who can create symbolic links.
secedit /export /cfg secpol.cfg
Edit secpol.cfg to set 'Create symbolic links' to Administrators only
secedit /configure /db secpol.sdb /cfg secpol.cfg
🧯 If You Can't Patch
- Implement strict least privilege principles to limit initial access vectors.
- Deploy application control/whitelisting to prevent unauthorized process execution.
🔍 How to Verify
Check if Vulnerable:
Check Comodo Internet Security Pro version and compare against latest patched version from vendor.Check Version:
Check Comodo application interface for version information or examine installed programs in Control Panel.Verify Fix Applied:
Verify Comodo Internet Security Pro is updated to latest version and test symbolic link creation attempts against cmdagent.📡 Detection & Monitoring
Log Indicators:
- Unusual cmdagent process activity
- Multiple failed symbolic link creation attempts
- Unexpected file deletion events in system logs
Network Indicators:
- None - this is a local privilege escalation vulnerability
SIEM Query:
Process creation where parent process is cmdagent AND command line contains symbolic link manipulation patterns