CVE-2024-7797
📋 TL;DR
This CVE describes a critical SQL injection vulnerability in SourceCodester Simple Online Bidding System 1.0, allowing remote attackers to manipulate database queries via the username parameter in the admin login function. It affects all deployments of version 1.0, potentially enabling unauthorized access, data theft, or system compromise.
💻 Affected Systems
- SourceCodester Simple Online Bidding System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise, including theft of sensitive user data, administrative credentials, or full system takeover via remote code execution if database permissions allow.
Likely Case
Unauthorized access to the admin panel, data exfiltration, or manipulation of bidding data, leading to financial or operational disruption.
If Mitigated
Limited impact if input validation or WAF blocks malicious queries, but risk remains if underlying code is not patched.
🎯 Exploit Status
Exploit details are publicly disclosed, making it easy for attackers to craft SQL injection payloads without authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None known
Restart Required: No
Instructions:
No official patch is available; consider workarounds or replacing the software. Monitor vendor sources for updates.
🔧 Temporary Workarounds
Input Validation and Sanitization
allImplement server-side validation to sanitize the username parameter, rejecting SQL special characters.
Modify /simple-online-bidding-system/bidding/admin/ajax.php to use prepared statements with parameterized queries in PHP.
Web Application Firewall (WAF) Rules
allDeploy a WAF to block SQL injection patterns targeting the vulnerable endpoint.
Add custom rule to block requests to /ajax.php?action=login with SQL keywords in parameters.
🧯 If You Can't Patch
- Isolate the system from the internet and restrict access to trusted networks only.
- Monitor logs for suspicious SQL queries or unauthorized access attempts to the admin panel.
🔍 How to Verify
Check if Vulnerable:
Test by sending a crafted SQL injection payload (e.g., ' OR '1'='1) to the endpoint /simple-online-bidding-system/bidding/admin/ajax.php?action=login via POST with username parameter.Check Version:
Check the software version in the application's documentation or configuration files; no standard command exists.Verify Fix Applied:
After applying workarounds, retest with the same payload; successful fix should return an error or no database manipulation.📡 Detection & Monitoring
Log Indicators:
- Unusual SQL queries in application logs, multiple failed login attempts with SQL syntax in username field.
Network Indicators:
- HTTP POST requests to /ajax.php?action=login containing SQL keywords like UNION, SELECT, or OR in parameters.
SIEM Query:
source="web_logs" AND url="/ajax.php?action=login" AND (username="*OR*" OR username="*UNION*" OR username="*SELECT*")