CVE-2025-28402
📋 TL;DR
A privilege escalation vulnerability in RUoYi v.4.8.0 allows remote attackers to gain elevated privileges by manipulating the jobId parameter. This affects all systems running the vulnerable version of RUoYi, potentially enabling attackers to compromise administrative functions.
💻 Affected Systems
- RUoYi
📦 What is this software?
Ruoyi by Ruoyi
⚠️ Risk & Real-World Impact
Worst Case
Complete system takeover with administrative privileges, allowing data exfiltration, system modification, and further network compromise.
Likely Case
Unauthorized privilege escalation leading to unauthorized access to sensitive administrative functions and data.
If Mitigated
Limited impact with proper access controls and monitoring in place, potentially only affecting isolated components.
🎯 Exploit Status
Exploitation requires some level of initial access but is straightforward once access is obtained.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: v.4.8.1 or later
Vendor Advisory: https://github.com/yangzongzhuan/RuoYi
Restart Required: Yes
Instructions:
1. Backup current installation. 2. Download latest version from official repository. 3. Replace vulnerable files with patched version. 4. Restart application server.
🔧 Temporary Workarounds
Parameter Validation
allImplement strict input validation for jobId parameter to prevent malicious values.
Modify jobId parameter handling to validate against allowed values
Access Restriction
allRestrict access to vulnerable endpoints using network controls or WAF rules.
Configure firewall/WAF to block unauthorized access to job-related endpoints
🧯 If You Can't Patch
- Implement strict network segmentation to isolate RUoYi systems
- Enable detailed logging and monitoring for privilege escalation attempts
🔍 How to Verify
Check if Vulnerable:
Check RUoYi version in application configuration or about page; if version is exactly 4.8.0, system is vulnerable.Check Version:
Check application configuration file or web interface for version informationVerify Fix Applied:
Verify version is updated to 4.8.1 or later and test jobId parameter manipulation attempts fail.📡 Detection & Monitoring
Log Indicators:
- Unusual privilege escalation attempts
- Multiple failed authentication attempts followed by successful privileged access
- Suspicious jobId parameter values in request logs
Network Indicators:
- Unusual traffic patterns to job-related endpoints
- Requests with manipulated jobId parameters
SIEM Query:
source="ruoyi_logs" AND (jobId="*malicious*" OR "privilege escalation")