CVE-2024-7306
📋 TL;DR
This is a critical SQL injection vulnerability in SourceCodester Establishment Billing Management System 1.0. Attackers can remotely exploit the /manage_block.php file by manipulating the 'id' parameter to execute arbitrary SQL commands. All users running this specific version of the billing management system are affected.
💻 Affected Systems
- SourceCodester Establishment Billing Management System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise leading to data theft, data manipulation, authentication bypass, or full system takeover via SQL injection to RCE chaining.
Likely Case
Database information disclosure, data manipulation, and potential privilege escalation within the application.
If Mitigated
Limited impact with proper input validation and WAF rules blocking SQL injection patterns.
🎯 Exploit Status
Exploit code is publicly available on GitHub Gist. The vulnerability requires no authentication and has simple exploitation vectors.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None found
Restart Required: No
Instructions:
No official patch available. Consider upgrading to a newer version if available, or implement workarounds.
🔧 Temporary Workarounds
Input Validation and Sanitization
allAdd proper input validation and parameterized queries to the /manage_block.php file
Modify PHP code to use prepared statements: $stmt = $conn->prepare('SELECT * FROM blocks WHERE id = ?'); $stmt->bind_param('i', $id);
WAF Rule Implementation
allDeploy web application firewall rules to block SQL injection patterns
Add WAF rule: SecRule ARGS:id "@detectSQLi" "id:1001,phase:2,deny,status:403"
🧯 If You Can't Patch
- Isolate the system behind a firewall with strict access controls
- Implement network segmentation to limit database access from the web server
🔍 How to Verify
Check if Vulnerable:
Test the /manage_block.php endpoint with SQL injection payloads like: /manage_block.php?id=1' OR '1'='1Check Version:
Check application version in admin panel or readme filesVerify Fix Applied:
Test with the same payloads after implementing fixes - should return error pages or no data leakage📡 Detection & Monitoring
Log Indicators:
- Unusual SQL error messages in web server logs
- Multiple requests to /manage_block.php with SQL-like parameters
Network Indicators:
- HTTP requests containing SQL keywords (UNION, SELECT, etc.) in URL parameters
SIEM Query:
source="web_logs" AND url="/manage_block.php" AND (url="*UNION*" OR url="*SELECT*" OR url="*OR '1'='1*")