CVE-2025-0278
📋 TL;DR
HCL Traveler for Windows exposes internal file paths in error messages or debug logs, potentially revealing sensitive directory structures. This affects Windows installations of HCL Traveler where detailed error reporting is enabled. Attackers could use this information to map the application's internal architecture.
💻 Affected Systems
- HCL Traveler
📦 What is this software?
Traveler by Hcltech
⚠️ Risk & Real-World Impact
Worst Case
Attackers combine path disclosure with other vulnerabilities to target specific files or directories, potentially leading to data exfiltration or privilege escalation.
Likely Case
Information leakage that reveals internal application structure, which could aid in further reconnaissance attacks.
If Mitigated
Minimal impact with proper error handling and logging controls that sanitize sensitive information.
🎯 Exploit Status
Exploitation requires triggering error conditions or accessing debug information that reveals paths.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check HCL advisory for specific fixed versions
Vendor Advisory: https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0120335
Restart Required: Yes
Instructions:
1. Review HCL advisory KB0120335
2. Download and apply the latest HCL Traveler patch
3. Restart the HCL Traveler service
4. Verify error messages no longer contain internal paths
🔧 Temporary Workarounds
Disable Detailed Error Reporting
windowsConfigure HCL Traveler to suppress detailed error messages containing internal paths
Configure via HCL Traveler administration console: Disable detailed error logging
Implement Error Sanitization
windowsAdd application-level filtering to remove path information from error responses
Implement custom error handlers in application configuration
🧯 If You Can't Patch
- Implement network segmentation to limit access to HCL Traveler servers
- Configure web application firewall to filter error responses containing path information
🔍 How to Verify
Check if Vulnerable:
Trigger error conditions in HCL Traveler and check if responses contain internal Windows file pathsCheck Version:
Check HCL Traveler version via administration console or application logsVerify Fix Applied:
After patching, trigger same error conditions and confirm no internal paths appear in responses📡 Detection & Monitoring
Log Indicators:
- Error logs containing Windows directory paths like C:\Program Files\HCL\Traveler\
- Debug logs with full file paths
Network Indicators:
- HTTP responses containing internal file paths in error messages
SIEM Query:
search 'C:\Program Files\HCL\Traveler' OR 'internal path' in application logs