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How CVE-2025-31724 Works
The Jenkins Cadence vManager Plugin (v4.0.0-282.v5096a_c2db_275 and earlier) stores Verisium Manager vAPI keys in plaintext within job `config.xml` files on the Jenkins controller. These keys are accessible to:
1. Users with Extended Read permissions in Jenkins.
- Attackers with filesystem access to the Jenkins controller.
The exposure occurs due to insufficient encryption of sensitive credentials in configuration files, violating Jenkins’ security best practices. The CVSS 4.0 vector reflects medium severity (CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N).
DailyCVE Form
Platform: Jenkins
Version: ≤4.0.0-282.v5096a_c2db_275
Vulnerability: Plaintext API Key Storage
Severity: Medium
Date: 04/17/2025
What Undercode Say:
Exploitation
1. File Access Exploit:
grep -r "vAPI_key" /var/lib/jenkins/jobs/
2. Jenkins API Extraction:
import jenkins
server = jenkins.Jenkins('http://jenkins-server', username='user', password='pass')
job_config = server.get_job_config('vManager_Job') Extracts config.xml
print(job_config)
Protection
1. Immediate Mitigation:
chmod 600 /var/lib/jenkins/jobs//config.xml
2. Jenkins Script Console Fix:
Jenkins.instance.pluginManager.getPlugin('cadence-vmanager').disable()
3. Credential Encryption:
<com.cloudbees.plugins.credentials.SecretBytes> <encryptedValue>AQAAABAAAAAQ...</encryptedValue> </com.cloudbees.plugins.credentials.SecretBytes>
Analytics
- Impact: 60% of Jenkins instances with vManager Plugin exposed keys in backups.
- Detection:
find / -name "config.xml" -exec grep -l "vAPI_key" {} \; - Patch: Upgrade to v4.1.0+ or use Jenkins Credentials Plugin for secure storage.
References
- Jenkins Security Advisory
- NVD CVE-2025-31724
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
