CVE-2022-25181
📋 TL;DR
This CVE describes a sandbox bypass vulnerability in Jenkins Pipeline: Shared Groovy Libraries Plugin that allows attackers with Item/Configure permission to execute arbitrary code on the Jenkins controller. Attackers can achieve remote code execution by crafting malicious SCM contents when a global Pipeline library exists. This affects Jenkins administrators and users with configuration permissions.
💻 Affected Systems
- Jenkins Pipeline: Shared Groovy Libraries Plugin
📦 What is this software?
Pipeline\ by Jenkins
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of Jenkins controller with full system access, allowing lateral movement, data exfiltration, and persistent backdoor installation.
Likely Case
Unauthorized code execution leading to credential theft, pipeline manipulation, and deployment of malicious artifacts.
If Mitigated
Limited impact if proper access controls restrict Item/Configure permissions and network segmentation isolates Jenkins.
🎯 Exploit Status
Exploitation requires authenticated access with Item/Configure permission. Public exploit details exist in security advisories.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 552.vd9cc05b8a2e1 and later versions
Vendor Advisory: https://www.jenkins.io/security/advisory/2022-02-15/#SECURITY-2441
Restart Required: Yes
Instructions:
1. Update Jenkins Pipeline: Shared Groovy Libraries Plugin to version 552.vd9cc05b8a2e1 or later. 2. Restart Jenkins instance. 3. Verify plugin version in Jenkins plugin manager.
🔧 Temporary Workarounds
Restrict Item/Configure Permissions
allLimit users with Item/Configure permission to trusted administrators only.
Remove Global Pipeline Libraries
allTemporarily remove or disable global Pipeline libraries if not required.
🧯 If You Can't Patch
- Implement strict access controls to limit Item/Configure permissions to essential personnel only.
- Network segment Jenkins controller to restrict lateral movement and monitor for suspicious activity.
🔍 How to Verify
Check if Vulnerable:
Check Jenkins plugin manager for Pipeline: Shared Groovy Libraries Plugin version. If version is 552.vd9cc05b8a2e1 or earlier, the system is vulnerable.Check Version:
Check via Jenkins web UI: Manage Jenkins > Manage Plugins > Installed tab, or via CLI: java -jar jenkins-cli.jar -s http://jenkins-url/ list-plugins | grep 'Pipeline: Shared Groovy Libraries'Verify Fix Applied:
Verify plugin version is 552.vd9cc05b8a2e1 or later in Jenkins plugin manager and confirm Jenkins has been restarted.📡 Detection & Monitoring
Log Indicators:
- Unusual Groovy script executions
- Unauthorized pipeline library modifications
- Jenkins controller process spawning unexpected child processes
Network Indicators:
- Unexpected outbound connections from Jenkins controller
- Suspicious SCM repository access patterns
SIEM Query:
source="jenkins.log" AND ("Groovy" OR "sandbox" OR "library") AND ("error" OR "exception" OR "unauthorized")