CVE-2025-64645
📋 TL;DR
A local privilege escalation vulnerability exists in IBM Concert due to a race condition involving symbolic link handling. This allows authenticated local users to gain elevated privileges on affected systems. The vulnerability affects IBM Concert versions 1.0.0 through 2.1.0.
💻 Affected Systems
- IBM Concert
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Local attacker gains root/administrator privileges, enabling complete system compromise, data theft, and persistence establishment.
Likely Case
Local user escalates to higher privileges than intended, potentially accessing sensitive data or performing unauthorized administrative actions.
If Mitigated
With proper access controls and monitoring, impact is limited to unauthorized privilege escalation within the application context.
🎯 Exploit Status
Exploitation requires local access and knowledge of the race condition timing. No public exploit code is currently available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: IBM Concert 2.1.1 or later
Vendor Advisory: https://www.ibm.com/support/pages/node/7255549
Restart Required: Yes
Instructions:
1. Download IBM Concert version 2.1.1 or later from IBM support portal. 2. Backup current installation and data. 3. Stop IBM Concert services. 4. Install the updated version following IBM's installation guide. 5. Restart services and verify functionality.
🔧 Temporary Workarounds
Restrict local user access
allLimit local user accounts to only trusted administrators who require access to IBM Concert systems.
Implement strict file permissions
linuxSet restrictive permissions on IBM Concert directories to prevent unauthorized symbolic link creation.
chmod 750 /path/to/ibm-concert-directories
chown root:ibmconcert /path/to/ibm-concert-directories
🧯 If You Can't Patch
- Implement strict access controls to limit local user accounts on affected systems
- Monitor for privilege escalation attempts and unusual user activity
🔍 How to Verify
Check if Vulnerable:
Check IBM Concert version using the application's admin interface or by examining installation files. Versions 1.0.0 through 2.1.0 are vulnerable.Check Version:
Check the IBM Concert admin console or examine the version.txt file in the installation directory.Verify Fix Applied:
Verify installation of IBM Concert version 2.1.1 or later through the admin interface or version files.📡 Detection & Monitoring
Log Indicators:
- Multiple rapid file access attempts to IBM Concert directories
- Unexpected privilege changes for local users
- Failed or successful attempts to create symbolic links in protected directories
Network Indicators:
- Local system activity only - no network indicators for this local vulnerability
SIEM Query:
source="ibm-concert-logs" AND (event_type="file_access" OR event_type="privilege_change") AND rate > 10 per minute