CVE-2024-30928
📋 TL;DR
This SQL injection vulnerability in DerbyNet allows attackers to execute arbitrary SQL commands through the 'classids' parameter in the ajax/query.slide.next.inc endpoint. Attackers can potentially read, modify, or delete database content. All DerbyNet installations version 9.0 and below are affected.
💻 Affected Systems
- DerbyNet
📦 What is this software?
Derbynet by Derbynet
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including data theft, data destruction, privilege escalation to administrative access, and potential remote code execution if database functions allow it.
Likely Case
Unauthorized data access and modification, extraction of sensitive information like user credentials or race data, and potential application disruption.
If Mitigated
Limited impact with proper input validation and database permissions, potentially only allowing data viewing without modification.
🎯 Exploit Status
SQL injection is well-understood with many automated tools available. The vulnerability is in a publicly accessible AJAX endpoint.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available
Restart Required: No
Instructions:
1. Check for official patch from DerbyNet developers. 2. If patch available, download and apply. 3. Verify fix by testing the vulnerable endpoint.
🔧 Temporary Workarounds
Input Validation Filter
allAdd input validation to sanitize the 'classids' parameter before processing
Modify ajax/query.slide.next.inc to validate classids parameter as integer or safe string
Web Application Firewall Rule
allBlock SQL injection patterns targeting the vulnerable endpoint
Add WAF rule to block requests containing SQL keywords in classids parameter
🧯 If You Can't Patch
- Restrict access to the ajax/query.slide.next.inc endpoint using network controls or authentication
- Implement database-level protections: use least privilege accounts, enable query logging, and restrict database functions
🔍 How to Verify
Check if Vulnerable:
Test the ajax/query.slide.next.inc endpoint with SQL injection payloads in the classids parameterCheck Version:
Check DerbyNet version in configuration files or admin interfaceVerify Fix Applied:
Test the same endpoint with SQL injection payloads to confirm they are rejected or sanitized📡 Detection & Monitoring
Log Indicators:
- Unusual SQL queries in database logs
- Multiple requests to ajax/query.slide.next.inc with suspicious parameters
- Error logs showing SQL syntax errors
Network Indicators:
- HTTP requests to ajax/query.slide.next.inc containing SQL keywords like UNION, SELECT, INSERT in parameters
SIEM Query:
source="web_logs" AND url="*ajax/query.slide.next.inc*" AND (param="*UNION*" OR param="*SELECT*" OR param="*INSERT*")