CVE-2025-24457
📋 TL;DR
JetBrains YouTrack versions before 2024.3.55417 expose permanent authentication tokens in application logs. This vulnerability allows attackers with access to log files to steal tokens and impersonate users. All YouTrack instances running vulnerable versions are affected.
💻 Affected Systems
- JetBrains YouTrack
📦 What is this software?
Youtrack by Jetbrains
⚠️ Risk & Real-World Impact
Worst Case
Attackers gain administrative access to YouTrack, potentially compromising all project data, user accounts, and using the system as a foothold for further attacks.
Likely Case
Unauthorized users access sensitive project data, modify issues, or impersonate legitimate users for privilege escalation.
If Mitigated
Limited exposure of non-critical user data if logs are properly secured and monitored.
🎯 Exploit Status
Exploitation depends on log file accessibility. No authentication bypass needed if logs are accessible.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2024.3.55417
Vendor Advisory: https://www.jetbrains.com/privacy-security/issues-fixed/
Restart Required: Yes
Instructions:
1. Backup your YouTrack instance. 2. Download YouTrack 2024.3.55417 or later from JetBrains website. 3. Stop the YouTrack service. 4. Install the updated version. 5. Restart the YouTrack service. 6. Verify the update completed successfully.
🔧 Temporary Workarounds
Restrict Log File Access
linuxSet strict file permissions on YouTrack log directories to prevent unauthorized access.
chmod 640 /path/to/youtrack/logs/*
chown youtrack:youtrack /path/to/youtrack/logs/*
Rotate Permanent Tokens
allRevoke and regenerate all permanent tokens to invalidate any potentially exposed tokens.
🧯 If You Can't Patch
- Implement strict access controls on log directories (read-only for essential services only)
- Enable log monitoring and alerting for suspicious access patterns to log files
🔍 How to Verify
Check if Vulnerable:
Check YouTrack version in Administration → System → About. If version is below 2024.3.55417, you are vulnerable.Check Version:
Check web interface at /admin/about or examine youtrack.log for version informationVerify Fix Applied:
Confirm version is 2024.3.55417 or higher in Administration → System → About. Check logs no longer contain permanent token strings.📡 Detection & Monitoring
Log Indicators:
- Unauthorized access to log files
- Patterns of token strings in unexpected log entries
- Multiple failed attempts to access log directories
Network Indicators:
- Unusual API requests using permanent tokens
- Authentication attempts from unexpected locations
SIEM Query:
source="youtrack.log" AND "permanent token" OR source="system.auth" AND event="token_usage" AND location!=expected