CVE-2024-4928
📋 TL;DR
This is a critical SQL injection vulnerability in SourceCodester Simple Online Bidding System 1.0 that allows attackers to execute arbitrary SQL commands via the 'id' parameter in the admin/ajax.php endpoint. Attackers can potentially steal, modify, or delete database contents including user credentials and bidding data. The vulnerability affects all deployments of this specific software version.
💻 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 server takeover via SQL injection to RCE chaining.
Likely Case
Unauthorized access to sensitive bidding data, user information theft, and potential privilege escalation within the application.
If Mitigated
Limited impact with proper input validation and database permissions, potentially only allowing data viewing without modification.
🎯 Exploit Status
Exploit requires admin access to reach the vulnerable endpoint. Public exploit code is available on GitHub.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available
Restart Required: No
Instructions:
No official patch available. Consider implementing parameterized queries or input validation as workaround.
🔧 Temporary Workarounds
Input Validation and Sanitization
allAdd server-side validation to ensure 'id' parameter contains only numeric values
Modify admin/ajax.php to validate $_GET['id'] is numeric before processing
Web Application Firewall Rules
allBlock SQL injection patterns targeting the vulnerable endpoint
Add WAF rule: Block requests containing SQL keywords in id parameter for /admin/ajax.php
🧯 If You Can't Patch
- Restrict access to /admin/ directory to trusted IP addresses only
- Implement database user with minimal permissions (read-only if possible)
🔍 How to Verify
Check if Vulnerable:
Test the endpoint with SQL injection payloads: /simple-online-bidding-system/admin/ajax.php?action=delete_category&id=1' OR '1'='1Check Version:
Check application files for version information, typically in config files or documentationVerify Fix Applied:
Verify that SQL injection payloads no longer work and return proper error handling📡 Detection & Monitoring
Log Indicators:
- Unusual SQL errors in application logs
- Multiple failed login attempts followed by admin/ajax.php access
- SQL keywords in GET parameters for ajax.php
Network Indicators:
- HTTP requests to /admin/ajax.php with SQL injection patterns in parameters
- Unusual database query patterns from application server
SIEM Query:
source="web_logs" AND uri="/admin/ajax.php" AND (param="id" AND value MATCH "'.*OR.*|'.*AND.*|'.*UNION.*")