CVE-2024-40539
📋 TL;DR
This SQL injection vulnerability in my-springsecurity-plus allows attackers to execute arbitrary SQL commands through the dataScope parameter in the /api/user endpoint. Attackers could potentially access, modify, or delete database content. All systems running vulnerable versions of my-springsecurity-plus are affected.
💻 Affected Systems
- my-springsecurity-plus
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including data exfiltration, data destruction, privilege escalation to administrative access, and potential remote code execution through database functions.
Likely Case
Unauthorized data access and extraction of sensitive user information, potentially leading to credential theft and lateral movement within the system.
If Mitigated
Limited impact with proper input validation and parameterized queries in place, potentially only causing application errors without data compromise.
🎯 Exploit Status
SQL injection via HTTP parameter manipulation requires authentication but is straightforward to exploit once authenticated.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: v2024.07.03
Vendor Advisory: https://gitee.com/witmy/my-springsecurity-plus/issues/IAAE8U
Restart Required: Yes
Instructions:
1. Backup current configuration and data. 2. Update to my-springsecurity-plus v2024.07.03 or later. 3. Restart the application server. 4. Verify the fix by testing the /api/user endpoint.
🔧 Temporary Workarounds
Input Validation Filter
allAdd input validation to reject malicious dataScope parameter values
Implement parameter validation in Spring Security filter chain to sanitize dataScope input
WAF Rule
allDeploy web application firewall rules to block SQL injection patterns
Configure WAF to detect and block SQL injection attempts on /api/user endpoint
🧯 If You Can't Patch
- Implement parameterized queries or prepared statements for all database operations
- Apply principle of least privilege to database user accounts and restrict unnecessary database functions
🔍 How to Verify
Check if Vulnerable:
Test the /api/user endpoint with SQL injection payloads in the dataScope parameter and observe database errors or unexpected responses.Check Version:
Check application version in pom.xml or application.properties for my-springsecurity-plus versionVerify Fix Applied:
After patching, attempt SQL injection attacks on the dataScope parameter and verify they are properly rejected or sanitized.📡 Detection & Monitoring
Log Indicators:
- Unusual SQL syntax in request logs
- Database error messages in application logs
- Multiple failed authentication attempts followed by SQL injection attempts
Network Indicators:
- HTTP requests to /api/user with SQL keywords in parameters
- Unusual database query patterns from application server
SIEM Query:
source="application.logs" AND ("dataScope" AND ("UNION" OR "SELECT" OR "INSERT" OR "DELETE" OR "DROP"))