CVE-2024-11818
📋 TL;DR
This critical SQL injection vulnerability in PHPGurukul User Registration & Login and User Management System 1.0 allows remote attackers to execute arbitrary SQL commands via the email parameter in /signup.php. This can lead to unauthorized data access, modification, or deletion. All users running the vulnerable version are affected.
💻 Affected Systems
- PHPGurukul User Registration & Login and User Management System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including credential theft, data exfiltration, privilege escalation, and potential system takeover via SQL injection leading to remote code execution.
Likely Case
Unauthorized access to user data, credential harvesting, and potential privilege escalation within the application.
If Mitigated
Limited impact with proper input validation, parameterized queries, and database permissions restricting SQL execution.
🎯 Exploit Status
Exploit details are publicly disclosed on GitHub, making this easily exploitable by attackers with basic SQL injection knowledge.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://phpgurukul.com/
Restart Required: No
Instructions:
1. Check vendor website for security updates. 2. If no patch available, implement workarounds immediately. 3. Consider replacing with secure alternative software.
🔧 Temporary Workarounds
Input Validation Filter
allAdd server-side validation to sanitize email parameter inputs before processing.
// PHP example: filter_var($_POST['email'], FILTER_SANITIZE_EMAIL);
// Use prepared statements with parameterized queries
WAF Rule Implementation
allDeploy web application firewall rules to block SQL injection patterns targeting /signup.php.
# ModSecurity example rule: SecRule ARGS:email "@detectSQLi" "id:1001,phase:2,deny"
🧯 If You Can't Patch
- Immediately disable or restrict access to /signup.php endpoint
- Implement network segmentation to isolate the vulnerable system from critical assets
🔍 How to Verify
Check if Vulnerable:
Test /signup.php endpoint with SQL injection payloads in email parameter (e.g., ' OR '1'='1). Monitor for unexpected database responses.Check Version:
Check application files or documentation for version information; typically found in readme files or configuration.Verify Fix Applied:
Attempt SQL injection tests after implementing fixes; verify no database errors or unexpected data returns.📡 Detection & Monitoring
Log Indicators:
- Unusual SQL syntax errors in application logs
- Multiple failed signup attempts with suspicious email patterns
- Database query errors containing injection payloads
Network Indicators:
- HTTP POST requests to /signup.php with SQL keywords in parameters
- Unusual database connection patterns from web server
SIEM Query:
source="web_logs" AND uri_path="/signup.php" AND (email="*OR*" OR email="*UNION*" OR email="*SELECT*")