CVE-2024-57439
📋 TL;DR
This vulnerability in RuoYi v4.8.0 allows administrators to cause a Denial of Service (DoS) by duplicating login names during password resets. The attack requires admin privileges and affects systems running the vulnerable version of RuoYi, a popular Chinese open-source management system.
💻 Affected Systems
- RuoYi
📦 What is this software?
Ruoyi by Ruoyi
⚠️ Risk & Real-World Impact
Worst Case
Complete system unavailability due to DoS, preventing legitimate users from accessing the RuoYi management interface and potentially disrupting business operations.
Likely Case
Temporary service disruption affecting the RuoYi interface, requiring administrator intervention to restore normal operations.
If Mitigated
Minimal impact if proper access controls limit admin privileges to trusted personnel only.
🎯 Exploit Status
Exploitation requires admin privileges. Public proof-of-concept exists in GitHub repositories demonstrating the duplication attack.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: v4.8.1 or later
Vendor Advisory: https://gitee.com/y_project/RuoYi
Restart Required: Yes
Instructions:
1. Backup current RuoYi installation and database. 2. Download latest version from official repository. 3. Replace vulnerable files with patched version. 4. Restart application server. 5. Verify functionality.
🔧 Temporary Workarounds
Restrict Admin Access
allLimit admin privileges to only essential, trusted personnel and implement strong authentication controls.
Monitor Password Reset Activity
allImplement logging and alerting for unusual password reset patterns or duplicate login name attempts.
🧯 If You Can't Patch
- Implement strict access controls and monitoring for admin accounts
- Deploy network segmentation to isolate RuoYi systems from critical infrastructure
🔍 How to Verify
Check if Vulnerable:
Check RuoYi version in system settings or by examining application files. Version 4.8.0 is vulnerable.Check Version:
Check application.properties or system info page in RuoYi admin interfaceVerify Fix Applied:
Verify version is 4.8.1 or later and test password reset functionality with admin privileges to ensure no duplicate login names can be created.📡 Detection & Monitoring
Log Indicators:
- Multiple password reset attempts for same user
- Duplicate login name creation attempts
- Unusual admin activity patterns
Network Indicators:
- Increased HTTP requests to password reset endpoints
- Unusual admin interface access patterns
SIEM Query:
source="ruoyi_logs" AND (event="password_reset" AND count>threshold) OR (message="duplicate login" OR message="username conflict")