CVE-2025-53662
📋 TL;DR
The Jenkins IFTTT Build Notifier Plugin stores sensitive IFTTT Maker Channel Keys unencrypted in configuration files, allowing users with Item/Extended Read permissions or file system access to view these credentials. This affects all Jenkins instances using version 1.2 or earlier of the plugin, potentially exposing IFTTT webhook integration keys.
💻 Affected Systems
- Jenkins IFTTT Build Notifier Plugin
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers gain access to IFTTT Maker Channel Keys, enabling them to trigger arbitrary IFTTT applets, potentially leading to data exfiltration, unauthorized system actions, or integration abuse.
Likely Case
Internal users with Item/Extended Read permissions inadvertently or intentionally access IFTTT keys, compromising IFTTT integrations and potentially triggering unintended applet executions.
If Mitigated
With proper access controls and monitoring, impact is limited to authorized users who already have significant Jenkins permissions.
🎯 Exploit Status
Exploitation requires Item/Extended Read permission or file system access to Jenkins controller.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.3 or later
Vendor Advisory: https://www.jenkins.io/security/advisory/2025-07-09/#SECURITY-3541
Restart Required: Yes
Instructions:
1. Update Jenkins IFTTT Build Notifier Plugin to version 1.3 or later via Jenkins Plugin Manager. 2. Restart Jenkins after plugin update. 3. Verify plugin version in Installed Plugins list.
🔧 Temporary Workarounds
Remove IFTTT Integration
allTemporarily disable IFTTT Build Notifier functionality by removing IFTTT Maker Channel Keys from job configurations.
Navigate to Jenkins job configuration > Remove IFTTT Maker Channel Key field values
Restrict File System Access
linuxLimit access to Jenkins controller file system where config.xml files are stored.
chmod 600 /var/lib/jenkins/jobs/*/config.xml
setfacl -m u:jenkins:rw /var/lib/jenkins/jobs/*/config.xml
🧯 If You Can't Patch
- Restrict Item/Extended Read permissions to minimal trusted users only.
- Monitor access to Jenkins job configuration files and audit user permissions regularly.
🔍 How to Verify
Check if Vulnerable:
Check Jenkins Plugin Manager for IFTTT Build Notifier Plugin version. If version is 1.2 or earlier and plugin is enabled, system is vulnerable.Check Version:
grep -r 'IFTTT Build Notifier' /var/lib/jenkins/plugins/IFTTT-Build-Notifier/META-INF/MANIFEST.MF | grep Plugin-VersionVerify Fix Applied:
Verify plugin version is 1.3 or later in Jenkins Plugin Manager. Check that IFTTT Maker Channel Keys are no longer stored in plaintext in job config.xml files.📡 Detection & Monitoring
Log Indicators:
- Unauthorized access attempts to Jenkins job configuration files
- Unexpected IFTTT webhook triggers from Jenkins IP addresses
Network Indicators:
- Unusual outbound connections to IFTTT API endpoints (maker.ifttt.com)
SIEM Query:
source="jenkins.log" AND ("config.xml" OR "IFTTT") AND ("access" OR "permission denied")