CVE-2025-31724
📋 TL;DR
The Jenkins Cadence vManager Plugin stores Verisium Manager vAPI keys unencrypted in job configuration files on the Jenkins controller. This allows users with Extended Read permission or filesystem access to view these sensitive credentials. Organizations using affected plugin versions are vulnerable to credential exposure.
💻 Affected Systems
- Jenkins Cadence vManager Plugin
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers gain access to Verisium Manager vAPI keys, enabling unauthorized access to Cadence verification systems, potential data exfiltration, or manipulation of verification results.
Likely Case
Internal users with Extended Read permission inadvertently or intentionally access API keys, leading to unauthorized API calls or credential reuse in other systems.
If Mitigated
With proper access controls and monitoring, exposure is limited to authorized administrators only, minimizing credential misuse.
🎯 Exploit Status
Exploitation requires existing access to Jenkins controller filesystem or Extended Read permissions.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Update to Jenkins Cadence vManager Plugin version 4.0.0-283.v5096a_c2db_276 or later
Vendor Advisory: https://www.jenkins.io/security/advisory/2025-04-02/#SECURITY-3537
Restart Required: Yes
Instructions:
1. Navigate to Jenkins Manage Jenkins > Manage Plugins
2. Go to Available tab and search for 'Cadence vManager Plugin'
3. Check for updates and install version 4.0.0-283.v5096a_c2db_276 or later
4. Restart Jenkins after installation completes
🔧 Temporary Workarounds
Restrict Extended Read Permissions
allLimit users with Extended Read permission to trusted administrators only.
# Review and modify Jenkins permissions via Manage Jenkins > Manage and Assign Roles
# Remove Extended Read permission from non-administrative users
Secure Jenkins Controller Filesystem
allRestrict filesystem access to Jenkins controller to authorized administrators only.
# Set appropriate filesystem permissions (e.g., chmod 600 on config.xml files)
# Use access controls to limit who can access Jenkins controller server
🧯 If You Can't Patch
- Rotate all exposed Verisium Manager vAPI keys immediately
- Audit and remove Extended Read permissions from non-essential users
🔍 How to Verify
Check if Vulnerable:
Check Jenkins plugin manager for Cadence vManager Plugin version. If version is 4.0.0-282.v5096a_c2db_275 or earlier, the system is vulnerable.Check Version:
Check Jenkins web UI at Manage Jenkins > Manage Plugins > Installed tab, or examine $JENKINS_HOME/plugins/cadence-vmanager/META-INF/MANIFEST.MFVerify Fix Applied:
Verify plugin version is 4.0.0-283.v5096a_c2db_276 or later in Manage Jenkins > Manage Plugins > Installed tab.📡 Detection & Monitoring
Log Indicators:
- Unauthorized access attempts to Jenkins controller filesystem
- Unusual API calls to Verisium Manager using potentially exposed keys
Network Indicators:
- Unexpected outbound connections to Cadence/Verisium systems from Jenkins controller
SIEM Query:
source="jenkins" AND (event="File access" AND file="*config.xml") OR (event="API call" AND destination="verisium")