CVE-2025-64111
📋 TL;DR
This vulnerability allows attackers to modify files in the .git directory of Gogs installations, potentially leading to remote command execution. It affects Gogs versions 0.13.3 and earlier due to an insufficient patch for a previous vulnerability. Organizations running vulnerable Gogs instances are at risk.
💻 Affected Systems
- Gogs
📦 What is this software?
Gogs by Gogs
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of the Gogs server with full remote command execution, allowing attackers to steal source code, deploy malware, or pivot to other systems.
Likely Case
Remote code execution leading to data exfiltration, installation of backdoors, or disruption of Git services.
If Mitigated
Limited impact if proper network segmentation and access controls prevent external exploitation attempts.
🎯 Exploit Status
Based on the advisory, exploitation appears to be unauthenticated and relatively straightforward.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 0.13.4 or 0.14.0+dev
Vendor Advisory: https://github.com/gogs/gogs/security/advisories/GHSA-gg64-xxr9-qhjp
Restart Required: Yes
Instructions:
1. Backup your Gogs data and configuration. 2. Download Gogs version 0.13.4 or later from the official repository. 3. Stop the Gogs service. 4. Replace the existing Gogs binary with the new version. 5. Restart the Gogs service. 6. Verify the version is updated.
🔧 Temporary Workarounds
Network Access Restriction
linuxRestrict network access to Gogs instance to trusted IP addresses only
# Use firewall rules to restrict access
iptables -A INPUT -p tcp --dport 3000 -s trusted_ip_range -j ACCEPT
iptables -A INPUT -p tcp --dport 3000 -j DROP
🧯 If You Can't Patch
- Implement strict network segmentation to isolate Gogs from critical systems
- Deploy a web application firewall (WAF) with rules to detect and block .git directory manipulation attempts
🔍 How to Verify
Check if Vulnerable:
Check the Gogs version by accessing the web interface or running: ./gogs --versionCheck Version:
./gogs --versionVerify Fix Applied:
Confirm the version is 0.13.4 or later and test that .git directory modifications are properly restricted📡 Detection & Monitoring
Log Indicators:
- Unusual file modification patterns in .git directory
- Failed authentication attempts followed by file operations
- Commands executed via web hooks or Git operations
Network Indicators:
- Unusual HTTP requests targeting .git paths
- Suspicious Git operations from unexpected sources
SIEM Query:
source="gogs" AND (path="*.git*" OR command="*sh*" OR command="*bash*")