CVE-2025-24402
📋 TL;DR
A CSRF vulnerability in Jenkins Azure Service Fabric Plugin allows attackers to trick authenticated users into connecting Jenkins to attacker-controlled Service Fabric clusters using stolen credentials. This affects Jenkins instances with the vulnerable plugin installed where users have configuration permissions. Attackers must obtain valid credentials through other means first.
💻 Affected Systems
- Jenkins Azure Service Fabric Plugin
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could connect Jenkins to malicious Service Fabric clusters, potentially enabling further attacks like supply chain compromise, data exfiltration, or using Jenkins as a pivot point into Azure environments.
Likely Case
Attackers could redirect Jenkins build/deployment operations to attacker-controlled infrastructure, potentially stealing sensitive data or disrupting CI/CD pipelines.
If Mitigated
With proper CSRF protections and credential management, impact is limited to potential configuration changes requiring manual remediation.
🎯 Exploit Status
Requires social engineering to trick authenticated users and separate credential theft. No public exploit code known as of advisory date.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.7 or later
Vendor Advisory: https://www.jenkins.io/security/advisory/2025-01-22/#SECURITY-3094
Restart Required: Yes
Instructions:
1. Update Jenkins Azure Service Fabric Plugin to version 1.7 or later via Jenkins Plugin Manager
2. Restart Jenkins after plugin update
3. Verify plugin version in Manage Jenkins > Plugins
🔧 Temporary Workarounds
Enable CSRF Protection
allEnsure Jenkins CSRF protection is enabled globally
Check 'Prevent Cross Site Request Forgery exploits' is enabled in Manage Jenkins > Configure Global Security
Restrict Configuration Permissions
allLimit who can configure the Azure Service Fabric Plugin
Use Project-based Matrix Authorization or Role-based Strategy to restrict 'Configure' permissions
🧯 If You Can't Patch
- Implement strict credential management: Rotate all Azure Service Fabric credentials and store them securely outside Jenkins
- Monitor for unauthorized configuration changes to Azure Service Fabric plugin settings
🔍 How to Verify
Check if Vulnerable:
Check plugin version in Jenkins: Manage Jenkins > Plugins > Installed tab > search 'Azure Service Fabric Plugin'Check Version:
On Jenkins server: java -jar jenkins-cli.jar -s http://localhost:8080/ list-plugins | grep 'azure-service-fabric'Verify Fix Applied:
Verify plugin version is 1.7 or higher in Jenkins Plugin Manager📡 Detection & Monitoring
Log Indicators:
- Unexpected configuration changes to Azure Service Fabric plugin
- Failed authentication attempts to Azure Service Fabric endpoints from Jenkins
Network Indicators:
- Jenkins connections to unfamiliar Azure Service Fabric endpoints
- Unusual outbound traffic patterns from Jenkins to Azure
SIEM Query:
source="jenkins.log" AND ("Azure Service Fabric" OR "service-fabric") AND ("configuration changed" OR "credentials")