CVE-2024-25228
📋 TL;DR
This vulnerability allows authenticated attackers to execute arbitrary code on Vinchin Backup and Recovery systems via improper input validation in the getVerifydiyResult function. Attackers with valid credentials can achieve remote code execution with high privileges. All organizations using Vinchin Backup and Recovery 7.2 and earlier are affected.
💻 Affected Systems
- Vinchin Backup and Recovery
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to execute arbitrary commands, steal backup data, deploy ransomware, pivot to other systems, and maintain persistent access.
Likely Case
Attackers with stolen or compromised credentials gain full control over backup systems, potentially exfiltrating sensitive backup data or deploying malware.
If Mitigated
With proper network segmentation and credential protection, impact limited to isolated backup environment with minimal data exposure.
🎯 Exploit Status
Exploit requires valid credentials but is trivial to execute once authenticated. Public exploit code available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 7.2 Update 1 or later
Vendor Advisory: https://www.vinchin.com/en/support/security-advisory.html
Restart Required: Yes
Instructions:
1. Download latest patch from Vinchin support portal. 2. Backup current configuration. 3. Apply patch via Vinchin web interface. 4. Restart Vinchin services. 5. Verify patch installation.
🔧 Temporary Workarounds
Network Segmentation
allIsolate Vinchin backup systems from internet and restrict internal access
Credential Hardening
allImplement strong password policies, MFA, and regular credential rotation
🧯 If You Can't Patch
- Implement strict network access controls to limit who can reach Vinchin web interface
- Monitor for suspicious activity and implement application-level WAF rules to block exploitation attempts
🔍 How to Verify
Check if Vulnerable:
Check Vinchin version via web interface admin panel or SSH into server and check version filesCheck Version:
cat /usr/local/vinchin/version.txtVerify Fix Applied:
Verify version is 7.2 Update 1 or later and test that getVerifydiyResult function no longer accepts malicious input📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to ManoeuvreHandler.class.php
- Suspicious command execution in system logs
- Multiple failed authentication attempts followed by successful login
Network Indicators:
- Unusual outbound connections from backup server
- Traffic to suspicious IPs or domains
SIEM Query:
source="vinchin.logs" AND (uri="/ManoeuvreHandler.class.php" OR process="getVerifydiyResult")