CVE-2024-6417
📋 TL;DR
This critical SQL injection vulnerability in Simple Online Bidding System 1.0 allows attackers to execute arbitrary SQL commands via the id parameter in the /admin/ajax.php?action=delete_user endpoint. Attackers can potentially read, modify, or delete database contents, including sensitive user data. Organizations using this software are affected.
💻 Affected Systems
- SourceCodester Simple Online Bidding System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise leading to data theft, data destruction, authentication bypass, and potential remote code execution via database functions.
Likely Case
Unauthorized data access and manipulation, including extraction of user credentials, personal information, and bidding data.
If Mitigated
Limited impact with proper input validation and database permissions, potentially only allowing data viewing in affected tables.
🎯 Exploit Status
Exploit details are publicly available on GitHub. Attack requires admin authentication, but could be combined with other vulnerabilities.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None known
Restart Required: No
Instructions:
No official patch available. Implement workarounds or replace with secure alternative software.
🔧 Temporary Workarounds
Input Validation and Sanitization
allAdd parameterized queries or proper input validation to the delete_user function in ajax.php
Modify /admin/ajax.php to use prepared statements for SQL queries
Web Application Firewall Rules
allBlock SQL injection patterns targeting the vulnerable endpoint
WAF rule: Block requests to /admin/ajax.php?action=delete_user containing SQL keywords in id parameter
🧯 If You Can't Patch
- Restrict network access to the bidding system, allowing only trusted IP addresses
- Implement database-level controls: restrict application database user permissions to minimum required
🔍 How to Verify
Check if Vulnerable:
Test the /admin/ajax.php?action=delete_user endpoint with SQL injection payloads in the id parameter (requires admin authentication)Check Version:
Check software version in admin panel or readme filesVerify Fix Applied:
Verify that SQL injection payloads no longer execute and return appropriate error messages📡 Detection & Monitoring
Log Indicators:
- Unusual SQL errors in application logs
- Multiple delete_user requests with unusual id parameters
- Database queries with UNION, SELECT, or other SQL injection patterns
Network Indicators:
- HTTP requests to /admin/ajax.php?action=delete_user with SQL keywords in parameters
- Unusual database connection patterns from application server
SIEM Query:
source="web_logs" AND uri_path="/admin/ajax.php" AND query_string="*action=delete_user*" AND (query_string="*UNION*" OR query_string="*SELECT*" OR query_string="*OR*1=1*")