CVE-2024-6983
📋 TL;DR
CVE-2024-6983 is a critical remote code execution vulnerability in mudler/localai version 2.17.1 that allows attackers to upload malicious binary files and execute arbitrary code on the system. This vulnerability affects all deployments using the vulnerable version of localai, potentially giving attackers full control over affected systems. The risk is highest for internet-facing instances but also affects internal deployments.
💻 Affected Systems
- mudler/localai
📦 What is this software?
Localai by Mudler
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with attacker gaining root/administrator privileges, data exfiltration, ransomware deployment, and persistent backdoor installation.
Likely Case
Attacker gains shell access to the server, can read sensitive files, modify configurations, and potentially pivot to other systems in the network.
If Mitigated
Limited impact through network segmentation, proper access controls, and monitoring that detects exploitation attempts early.
🎯 Exploit Status
Exploit details are publicly available in the commit and bounty report; exploitation requires network access to the localai instance.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Fixed in commit d02a0f6f01d5c4a926a2d67190cb55d7aca23b66 and later versions
Vendor Advisory: https://github.com/mudler/localai/commit/d02a0f6f01d5c4a926a2d67190cb55d7aca23b66
Restart Required: Yes
Instructions:
1. Update localai to the latest version. 2. Pull the latest Docker image if using containers. 3. Restart the localai service. 4. Verify the fix by checking the version.
🔧 Temporary Workarounds
Network Isolation
linuxRestrict network access to localai instances using firewall rules
iptables -A INPUT -p tcp --dport [localai_port] -s [trusted_ips] -j ACCEPT
iptables -A INPUT -p tcp --dport [localai_port] -j DROP
File Upload Restrictions
allConfigure web server or reverse proxy to block binary file uploads to localai endpoints
🧯 If You Can't Patch
- Isolate the localai instance in a separate network segment with strict firewall rules
- Implement application-level controls to validate and sanitize all inputs before reaching localai
🔍 How to Verify
Check if Vulnerable:
Check if running localai version 2.17.1: localai --version or check Docker image tagCheck Version:
localai --versionVerify Fix Applied:
Verify version is newer than 2.17.1 and check commit hash includes d02a0f6f01d5c4a926a2d67190cb55d7aca23b66📡 Detection & Monitoring
Log Indicators:
- Unusual file uploads to localai endpoints
- Binary file execution from unexpected locations
- Process creation from localai with unusual arguments
Network Indicators:
- HTTP POST requests with binary content to localai upload endpoints
- Outbound connections from localai process to suspicious IPs
SIEM Query:
source="localai" AND (event="file_upload" OR event="process_execution") AND file_type="binary"