CVE-2024-4320
📋 TL;DR
This CVE-2024-4320 is a critical remote code execution vulnerability in the parisneo/lollms-webui application. Attackers can exploit the '/install_extension' endpoint by manipulating the 'name' parameter to execute arbitrary Python code from any location on the server. All users running the vulnerable version with external access are affected.
💻 Affected Systems
- parisneo/lollms-webui
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to execute arbitrary commands, steal data, install malware, or pivot to other systems.
Likely Case
Remote code execution leading to data theft, cryptocurrency mining, or ransomware deployment on vulnerable instances.
If Mitigated
Limited impact with proper network segmentation and access controls, potentially only affecting the application container.
🎯 Exploit Status
Exploit requires crafting a malicious 'name' parameter to trigger LFI and execute __init__.py files.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check latest release from vendor
Vendor Advisory: https://huntr.com/bounties/d6564f04-0f59-4686-beb2-11659342279b
Restart Required: Yes
Instructions:
1. Update to latest patched version from official repository. 2. Restart the lollms-webui service. 3. Verify the fix by checking version and testing exploit.
🔧 Temporary Workarounds
Network Access Restriction
linuxBlock external access to the vulnerable endpoint
iptables -A INPUT -p tcp --dport [APP_PORT] -s [TRUSTED_NETWORK] -j ACCEPT
iptables -A INPUT -p tcp --dport [APP_PORT] -j DROP
Endpoint Disablement
allDisable or block the '/install_extension' endpoint
Modify application configuration to remove/disable the vulnerable route
🧯 If You Can't Patch
- Implement strict network segmentation and firewall rules to block external access to the application
- Deploy web application firewall (WAF) rules to block malicious requests to the '/install_extension' endpoint
🔍 How to Verify
Check if Vulnerable:
Check if application responds to POST requests at '/install_extension' endpoint with crafted 'name' parameterCheck Version:
Check application version in web interface or configuration filesVerify Fix Applied:
Test the exploit after patching to confirm it no longer works📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to '/install_extension'
- Suspicious file inclusion patterns in logs
- Unexpected Python module imports
Network Indicators:
- HTTP POST requests to '/install_extension' with unusual 'name' parameters
- Outbound connections from application to unexpected destinations
SIEM Query:
source="web_server" AND (uri="/install_extension" AND method="POST") AND (name="*..*" OR name="*/../*")