CVE-2024-8581
📋 TL;DR
This vulnerability in parisneo/lollms-webui allows attackers to delete any file or directory on the system through path traversal in the upload_app function. It affects users running version V12 (Strawberry) of the web interface. The high CVSS score reflects the potential for complete system compromise.
💻 Affected Systems
- parisneo/lollms-webui
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise via deletion of critical system files, leading to OS corruption, data loss, or service disruption.
Likely Case
Unauthorized deletion of application files, configuration files, or user data, causing service outages or data integrity issues.
If Mitigated
Limited impact if proper file permissions restrict write access to non-critical directories.
🎯 Exploit Status
Exploit requires access to the upload functionality but is straightforward to execute.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Fixed in commit dcc078cbe20d2a9640b0942a622134b0e3fa6e48
Vendor Advisory: https://github.com/parisneo/lollms-webui/commit/dcc078cbe20d2a9640b0942a622134b0e3fa6e48
Restart Required: Yes
Instructions:
1. Update to the latest version from GitHub. 2. Apply the commit dcc078cbe20d2a9640b0942a622134b0e3fa6e48. 3. Restart the lollms-webui service.
🔧 Temporary Workarounds
Disable upload_app function
allTemporarily disable or restrict access to the vulnerable upload functionality.
Modify application configuration to disable upload endpoints
Implement input validation
allAdd server-side validation to filter filename inputs and prevent path traversal.
Implement sanitization in the upload_app function to restrict file paths
🧯 If You Can't Patch
- Restrict file system permissions to limit the impact of file deletions.
- Implement network segmentation to isolate the vulnerable system from critical assets.
🔍 How to Verify
Check if Vulnerable:
Check if running version V12 of lollms-webui and if the upload_app function exists without input validation.Check Version:
Check the application version in the web interface or configuration files.Verify Fix Applied:
Verify that the commit dcc078cbe20d2a9640b0942a622134b0e3fa6e48 is applied and test upload functionality with malicious filenames.📡 Detection & Monitoring
Log Indicators:
- Unusual file deletion events in system logs
- Failed or successful upload attempts with suspicious filenames
Network Indicators:
- HTTP requests to upload endpoints with path traversal patterns
SIEM Query:
Example: search for 'upload_app' AND ('../' OR '..\\' OR '%2e%2e%2f') in web server logs