CVE-2024-4267
📋 TL;DR
This CVE describes a critical command injection vulnerability in the parisneo/lollms-webui's 'open_file' module. Attackers can exploit it by providing malicious file paths that execute arbitrary system commands or read sensitive files. Users running version 9.5 of the affected software are vulnerable.
💻 Affected Systems
- parisneo/lollms-webui
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise allowing attackers to execute arbitrary commands with the privileges of the lollms-webui process, potentially leading to data theft, ransomware deployment, or complete system takeover.
Likely Case
Unauthorized file access and limited command execution leading to data exfiltration, privilege escalation, or lateral movement within the network.
If Mitigated
If proper input validation and sandboxing are implemented, exploitation would be prevented or limited to the application's restricted environment.
🎯 Exploit Status
The vulnerability is straightforward to exploit with publicly available details on the huntr.com bounty platform.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check the official repository for patched versions
Vendor Advisory: https://huntr.com/bounties/5a127724-cc13-4ea6-b81f-41546a7fff81
Restart Required: Yes
Instructions:
1. Update to the latest version of lollms-webui from the official repository. 2. Verify the 'open_file' function now properly validates and sanitizes user input. 3. Restart the lollms-webui service.
🔧 Temporary Workarounds
Disable open_file functionality
allTemporarily disable or restrict access to the vulnerable 'open_file' module
Modify configuration to remove or disable open_file endpoints
Implement input validation wrapper
allAdd a wrapper function that validates file paths before passing to open_file
Implement path validation using whitelisting of allowed characters and directories
🧯 If You Can't Patch
- Implement strict network access controls to limit who can access the lollms-webui interface
- Run lollms-webui with minimal privileges in a containerized or sandboxed environment
🔍 How to Verify
Check if Vulnerable:
Check if you're running version 9.5 of lollms-webui and examine the 'open_file' function for unsafe subprocess.Popen usage with user input.Check Version:
Check the lollms-webui version in the application interface or configuration filesVerify Fix Applied:
Verify the updated code properly sanitizes file paths and uses safe methods for file operations.📡 Detection & Monitoring
Log Indicators:
- Unusual subprocess executions from lollms-webui
- File access attempts to sensitive system paths
- Command execution patterns in application logs
Network Indicators:
- Unexpected outbound connections from lollms-webui host
- Traffic to command-and-control infrastructure
SIEM Query:
Process execution where parent_process contains 'lollms' AND command_line contains suspicious patterns like ';', '|', '&', '$(', '`'