CVE-2024-1520
📋 TL;DR
This CVE describes a critical OS command injection vulnerability in the lollms-webui application's '/open_code_folder' endpoint. Attackers can execute arbitrary commands on the underlying operating system by injecting malicious input into the 'discussion_id' parameter. Any system running a vulnerable version of lollms-webui with this endpoint exposed is 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 as the web server user, potentially leading to privilege escalation, data exfiltration, or installation of persistent backdoors.
Likely Case
Unauthorized command execution leading to data leakage, service disruption, or lateral movement within the network.
If Mitigated
Limited impact if proper input validation and command sanitization are implemented, potentially reduced to denial of service or limited information disclosure.
🎯 Exploit Status
The vulnerability is straightforward to exploit with publicly available proof-of-concept code from the huntr.com bounty.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Commit 2497d1a4fe5a09f003bf7a9bc426139e9295a934 and later
Vendor Advisory: https://github.com/parisneo/lollms-webui/commit/2497d1a4fe5a09f003bf7a9bc426139e9295a934
Restart Required: Yes
Instructions:
1. Update to the latest version of lollms-webui. 2. Pull the latest changes from the repository. 3. Restart the lollms-webui service.
🔧 Temporary Workarounds
Disable vulnerable endpoint
allRemove or disable access to the '/open_code_folder' endpoint
Modify application configuration to restrict endpoint access
Implement input validation
allAdd strict input validation for the 'discussion_id' parameter
Implement whitelist validation for discussion_id parameter
🧯 If You Can't Patch
- Implement network segmentation to isolate lollms-webui instances from critical systems
- Deploy web application firewall (WAF) rules to block command injection patterns
🔍 How to Verify
Check if Vulnerable:
Check if your lollms-webui version is prior to commit 2497d1a4fe5a09f003bf7a9bc426139e9295a934Check Version:
git log --oneline -1Verify Fix Applied:
Verify that the application code includes the fix from commit 2497d1a4fe5a09f003bf7a9bc426139e9295a934📡 Detection & Monitoring
Log Indicators:
- Unusual command execution patterns in system logs
- Multiple failed attempts to access '/open_code_folder' with suspicious parameters
Network Indicators:
- Unexpected outbound connections from the lollms-webui server
- Traffic patterns indicating command and control activity
SIEM Query:
source="web_server_logs" AND uri="/open_code_folder" AND (discussion_id CONTAINS "|" OR discussion_id CONTAINS ";" OR discussion_id CONTAINS "$")🔗 References
- https://github.com/parisneo/lollms-webui/commit/2497d1a4fe5a09f003bf7a9bc426139e9295a934
- https://huntr.com/bounties/405c2059-3fe9-4233-8eed-741ec847d181
- https://github.com/parisneo/lollms-webui/commit/2497d1a4fe5a09f003bf7a9bc426139e9295a934
- https://huntr.com/bounties/405c2059-3fe9-4233-8eed-741ec847d181
