CVE-2024-1147
📋 TL;DR
CVE-2024-1147 is an authentication bypass vulnerability in OpenText PVCS Version Manager that allows attackers to download files without proper authentication. This affects organizations using OpenText PVCS Version Manager with weak access controls. The vulnerability stems from improper authentication mechanisms (CWE-287).
💻 Affected Systems
- OpenText PVCS Version Manager
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Attackers could exfiltrate sensitive source code, configuration files, or proprietary intellectual property stored in the version control system, potentially leading to data breaches, intellectual property theft, and supply chain compromise.
Likely Case
Unauthorized access to repository files leading to source code disclosure, configuration exposure, and potential credential harvesting from configuration files.
If Mitigated
Limited impact with proper network segmentation, strong authentication controls, and monitoring in place to detect unauthorized access attempts.
🎯 Exploit Status
The vulnerability allows bypassing authentication, making exploitation straightforward once the attack vector is understood.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check vendor advisory for specific patched versions
Vendor Advisory: https://portal.microfocus.com/s/article/KM000026669
Restart Required: Yes
Instructions:
1. Review vendor advisory KM000026669. 2. Download and apply the latest security patch from OpenText. 3. Restart PVCS Version Manager services. 4. Verify authentication controls are functioning properly.
🔧 Temporary Workarounds
Network Segmentation
allRestrict network access to PVCS Version Manager to only trusted IP addresses and networks
Use firewall rules to limit access: iptables -A INPUT -p tcp --dport [PVCS_PORT] -s [TRUSTED_IP] -j ACCEPT
Windows Firewall: New-NetFirewallRule -DisplayName 'PVCS Access' -Direction Inbound -Protocol TCP -LocalPort [PVCS_PORT] -RemoteAddress [TRUSTED_IP] -Action Allow
Authentication Layer Enhancement
allImplement additional authentication layer (reverse proxy with authentication) in front of PVCS
Configure Apache/Nginx with basic auth: htpasswd -c /etc/nginx/.htpasswd username
nginx location block: auth_basic 'Restricted'; auth_basic_user_file /etc/nginx/.htpasswd;
🧯 If You Can't Patch
- Implement strict network access controls to limit PVCS access to only necessary users and systems
- Enable detailed logging and monitoring for all PVCS access attempts and file downloads
🔍 How to Verify
Check if Vulnerable:
Attempt to access PVCS Version Manager files without authentication using known vulnerable endpoints. Monitor for successful unauthorized access.Check Version:
Check PVCS Version Manager version through administrative interface or configuration filesVerify Fix Applied:
After patching, attempt authentication bypass techniques to confirm they no longer work. Verify proper authentication is required for all file access.📡 Detection & Monitoring
Log Indicators:
- Unauthenticated access attempts to PVCS endpoints
- File download requests without corresponding authentication logs
- Access from unexpected IP addresses
Network Indicators:
- Unusual file download patterns from PVCS server
- Traffic to PVCS from unauthorized networks
SIEM Query:
source='pvcs.log' AND (event_type='file_download' AND auth_status='failed' OR auth_status IS NULL)