CVE-2025-66214
📋 TL;DR
This vulnerability in Ladybug allows attackers to upload malicious XML files that get deserialized, leading to remote code execution on the server. Any Java application using vulnerable Ladybug versions is affected. Attackers can gain full control of the target system through this flaw.
💻 Affected Systems
- Ladybug
📦 What is this software?
Ladybug by Wearefrank
⚠️ Risk & Real-World Impact
Worst Case
Complete server compromise with attacker gaining root/admin privileges, data exfiltration, lateral movement, and persistent backdoor installation.
Likely Case
Attacker executes arbitrary code with application privileges, potentially accessing sensitive data, modifying configurations, or disrupting services.
If Mitigated
With proper network segmentation and least privilege, impact limited to application container with no access to underlying infrastructure.
🎯 Exploit Status
XML deserialization vulnerabilities are well-understood attack vectors with available exploit frameworks.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.0-20251107.114628
Vendor Advisory: https://github.com/wearefrank/ladybug/security/advisories/GHSA-f9fh-r3cv-398f
Restart Required: Yes
Instructions:
1. Stop the Java application using Ladybug. 2. Update Ladybug dependency to version 3.0-20251107.114628 or later. 3. Rebuild and redeploy the application. 4. Restart the application.
🔧 Temporary Workarounds
Disable vulnerable endpoints
allBlock or disable access to /iaf/ladybug/api/report/{storage} and /iaf/ladybug/api/report/upload endpoints
Configure web server/application firewall to block paths containing '/iaf/ladybug/api/report/'
Implement XML input validation
allAdd strict XML schema validation and content filtering for uploaded files
Implement XML schema validation and restrict allowed XML elements in application code
🧯 If You Can't Patch
- Implement network segmentation to isolate Ladybug instances from critical systems
- Deploy web application firewall with rules to detect and block XML deserialization attacks
🔍 How to Verify
Check if Vulnerable:
Check application dependencies for Ladybug version below 3.0-20251107.114628Check Version:
Check Maven/Gradle dependencies or examine JAR manifest: java -jar ladybug.jar --versionVerify Fix Applied:
Confirm Ladybug version is 3.0-20251107.114628 or later in application dependencies📡 Detection & Monitoring
Log Indicators:
- Unusual file uploads to /iaf/ladybug/api/report/ endpoints
- XML parsing errors with suspicious content
- Unexpected process execution from Java application
Network Indicators:
- POST requests to /iaf/ladybug/api/report/upload with gzip content
- XML payloads containing Java serialization data
SIEM Query:
source="application.log" AND (path="/iaf/ladybug/api/report/upload" OR path="/iaf/ladybug/api/report/*") AND (method="POST" OR status="200")