CVE-2024-3769
📋 TL;DR
This critical vulnerability in PHPGurukul Student Record System 3.20 allows SQL injection through the login.php page, potentially enabling authentication bypass and unauthorized database access. Attackers can exploit this remotely without authentication, affecting all systems running the vulnerable version.
💻 Affected Systems
- PHPGurukul Student Record System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise including data theft, data manipulation, privilege escalation, and potential remote code execution via SQL injection.
Likely Case
Authentication bypass leading to unauthorized access to student records, grade manipulation, and sensitive data exposure.
If Mitigated
Limited impact with proper input validation, parameterized queries, and web application firewall rules in place.
🎯 Exploit Status
Public exploit code is available on GitHub. The vulnerability requires minimal technical skill to exploit.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available
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 input validation and parameterized queries to login.php to prevent SQL injection
Modify login.php to use prepared statements: $stmt = $conn->prepare('SELECT * FROM users WHERE username = ? AND password = ?'); $stmt->bind_param('ss', $username, $password);
Web Application Firewall Rules
allImplement WAF rules to block SQL injection patterns in login requests
Add WAF rule: SecRule ARGS:id "@detectSQLi" "id:1001,phase:2,deny,status:403,msg:'SQL Injection Attempt'"
SecRule ARGS:password "@detectSQLi" "id:1002,phase:2,deny,status:403,msg:'SQL Injection Attempt'"
🧯 If You Can't Patch
- Isolate the system from internet access and restrict to internal network only
- Implement network segmentation and strict access controls to limit potential damage
🔍 How to Verify
Check if Vulnerable:
Test login.php with SQL injection payloads like: ' OR '1'='1 in username/password fieldsCheck Version:
Check system documentation or admin panel for version informationVerify Fix Applied:
Attempt SQL injection payloads after fixes; successful login should only occur with valid credentials📡 Detection & Monitoring
Log Indicators:
- Unusual SQL errors in application logs
- Multiple failed login attempts with SQL patterns
- Successful logins from unexpected IP addresses
Network Indicators:
- HTTP POST requests to login.php containing SQL keywords (UNION, SELECT, OR, --)
- Unusual database query patterns from web server
SIEM Query:
source="web_logs" AND uri="/login.php" AND (request_body LIKE "%UNION%" OR request_body LIKE "%SELECT%" OR request_body LIKE "%OR%1%3D1%")🔗 References
- https://github.com/BurakSevben/CVEs/blob/main/Student%20Record%20System%203.20/Student%20Record%20System%20-%20Authentication%20Bypass.md
- https://vuldb.com/?ctiid.260616
- https://vuldb.com/?id.260616
- https://vuldb.com/?submit.316302
- https://github.com/BurakSevben/CVEs/blob/main/Student%20Record%20System%203.20/Student%20Record%20System%20-%20Authentication%20Bypass.md
- https://vuldb.com/?ctiid.260616
- https://vuldb.com/?id.260616
- https://vuldb.com/?submit.316302
