CVE-2025-14542
📋 TL;DR
This vulnerability allows malicious providers to execute arbitrary commands on client systems by serving malicious JSON specifications (Manuals) after establishing trust. It affects clients using the universal-tool-calling-protocol (UTCP) that fetch Manuals from remote endpoints without proper validation.
💻 Affected Systems
- python-utcp (Universal Tool Calling Protocol)
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution with the privileges of the client process, potentially leading to full system compromise, data theft, or lateral movement.
Likely Case
Command execution leading to data exfiltration, system manipulation, or installation of backdoors.
If Mitigated
Limited impact if clients only fetch Manuals from trusted, verified sources with integrity checks.
🎯 Exploit Status
Exploitation requires the client to trust and fetch from a malicious provider, which could be achieved through social engineering or compromised legitimate endpoints.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Commit 2dc9c02df72cad3770c934959325ec344b441444 and later
Vendor Advisory: https://research.jfrog.com/vulnerabilities/python-utcp-untrusted-manual-command-execution-jfsa-2025-001648329/
Restart Required: No
Instructions:
1. Update python-utcp to the latest version. 2. Verify the commit 2dc9c02df72cad3770c934959325ec344b441444 is included. 3. No restart needed as it's a library update.
🔧 Temporary Workarounds
Restrict Manual Endpoints
allConfigure clients to only fetch Manuals from trusted, internal endpoints with integrity verification.
Configure client settings to use only whitelisted Manual endpoints.
Disable Remote Manual Fetching
allDisable the ability to fetch Manuals from remote endpoints entirely.
Set configuration to use local Manuals only or disable remote fetching feature.
🧯 If You Can't Patch
- Implement strict network controls to block clients from accessing untrusted Manual endpoints.
- Monitor and log all Manual fetch requests for anomalies and unauthorized sources.
🔍 How to Verify
Check if Vulnerable:
Check if your python-utcp version is before commit 2dc9c02df72cad3770c934959325ec344b441444 by inspecting the source or version metadata.Check Version:
Check the git commit hash or package version in your python-utcp installation directory.Verify Fix Applied:
Confirm the commit 2dc9c02df72cad3770c934959325ec344b441444 is present in your installation and test that malicious Manuals are rejected or sanitized.📡 Detection & Monitoring
Log Indicators:
- Unusual Manual fetch requests from unexpected sources
- Errors or warnings related to Manual parsing or validation
Network Indicators:
- Outbound connections to unknown or suspicious Manual endpoints
- Inbound requests serving Manuals to clients
SIEM Query:
Search for network logs showing connections to Manual endpoints not in the approved whitelist, or for process execution events triggered after Manual fetches.