CVE-2024-2358
📋 TL;DR
A path traversal vulnerability in the '/apply_settings' endpoint of parisneo/lollms-webui allows attackers to execute arbitrary code by exploiting insufficient input sanitization in the 'extensions' parameter. This enables remote code execution through malicious '__init__.py' files. All users running the latest version of parisneo/lollms-webui are affected.
💻 Affected Systems
- parisneo/lollms-webui
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with attacker gaining full control over the server, data exfiltration, and lateral movement within the network.
Likely Case
Remote code execution leading to data theft, service disruption, and potential ransomware deployment.
If Mitigated
Limited impact with proper input validation and file system restrictions in place.
🎯 Exploit Status
Exploitation requires access to the '/apply_settings' endpoint but is straightforward once access is obtained.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check vendor advisory for specific version
Vendor Advisory: https://huntr.com/bounties/b2771df3-be50-45bd-93c4-0974ce38bc22
Restart Required: Yes
Instructions:
1. Check vendor advisory for patched version. 2. Update to the latest patched version. 3. Restart the lollms-webui service.
🔧 Temporary Workarounds
Input Validation Filter
allAdd input validation to reject path traversal sequences in the 'extensions' parameter
Implement server-side validation to block strings containing '../' or similar traversal patterns
Endpoint Restriction
allRestrict access to the '/apply_settings' endpoint
Configure web server or application firewall to limit access to trusted IPs only
🧯 If You Can't Patch
- Implement strict input validation to block path traversal sequences
- Restrict file system permissions for the lollms-webui process
🔍 How to Verify
Check if Vulnerable:
Check if your version matches the affected version range and test for path traversal in the '/apply_settings' endpointCheck Version:
Check lollms-webui version through application interface or package managerVerify Fix Applied:
Verify that path traversal sequences are properly sanitized and cannot reach arbitrary directories📡 Detection & Monitoring
Log Indicators:
- Unusual file access patterns
- Requests to '/apply_settings' with path traversal sequences
- Execution of unexpected Python files
Network Indicators:
- HTTP POST requests to '/apply_settings' with suspicious payloads
SIEM Query:
source="web_server" AND (uri="/apply_settings" AND payload MATCHES "\.\./.*\.py")