CVE-2025-52603
📋 TL;DR
HCL Connections has an information disclosure vulnerability where, in specific user navigation scenarios, limited internal metadata can be exposed in the browser. This affects organizations using vulnerable versions of HCL Connections, potentially exposing internal system information to authenticated users.
💻 Affected Systems
- HCL Connections
📦 What is this software?
Connections by Hcltech
Connections by Hcltech
Connections by Hcltech
Connections by Hcltech
Connections by Hcltech
Connections by Hcltech
Connections by Hcltech
Connections by Hcltech
Connections by Hcltech
Connections by Hcltech
Connections by Hcltech
Connections by Hcltech
⚠️ Risk & Real-World Impact
Worst Case
An authenticated attacker could obtain internal metadata that reveals system architecture details, potentially aiding further attacks.
Likely Case
Limited internal metadata exposure that may reveal non-sensitive system information but doesn't directly compromise user data.
If Mitigated
With proper access controls and network segmentation, impact is minimal as only authenticated users can trigger the vulnerability.
🎯 Exploit Status
Requires specific navigation scenario and authenticated access; not trivial to exploit
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Consult vendor advisory KB0124242 for specific fixed versions
Vendor Advisory: https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0124242
Restart Required: Yes
Instructions:
1. Review vendor advisory KB0124242 2. Apply recommended patches 3. Restart HCL Connections services 4. Verify fix
🔧 Temporary Workarounds
Access Control Restriction
allLimit user access to only necessary functions and implement strict access controls
🧯 If You Can't Patch
- Implement strict access controls and least privilege principles
- Monitor for unusual user navigation patterns and access attempts
🔍 How to Verify
Check if Vulnerable:
Check HCL Connections version against vendor advisory KB0124242Check Version:
Check HCL Connections administration console or deployment documentationVerify Fix Applied:
Verify patch installation and test specific navigation scenarios mentioned in advisory📡 Detection & Monitoring
Log Indicators:
- Unusual user navigation patterns
- Access to metadata endpoints
Network Indicators:
- Requests to internal metadata endpoints from user sessions
SIEM Query:
source="hcl-connections" AND (event_type="metadata_access" OR uri CONTAINS "metadata")