CVE-2024-55099
📋 TL;DR
A SQL injection vulnerability in the phpgurukul Online Nurse Hiring System v1.0 allows remote attackers to execute arbitrary SQL commands via the username parameter in the admin login page. This enables unauthorized database access, potentially leading to data theft, authentication bypass, or system compromise. Organizations using this specific software version are affected.
💻 Affected Systems
- phpgurukul Online Nurse Hiring System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including sensitive healthcare data exfiltration, authentication bypass to gain admin privileges, and potential remote code execution leading to full system takeover.
Likely Case
Unauthorized access to database contents including patient records, nurse information, and administrative credentials, potentially leading to data theft and system manipulation.
If Mitigated
Limited impact with proper input validation and database permissions, potentially only allowing information disclosure without write access.
🎯 Exploit Status
Public proof-of-concept available in GitHub repositories, exploitation requires no authentication
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not available
Restart Required: No
Instructions:
No official patch available. Implement parameterized queries and input validation in /admin/index.php
🔧 Temporary Workarounds
Input Validation and Sanitization
allAdd server-side validation to sanitize username parameter before SQL processing
Modify /admin/index.php to use prepared statements with parameterized queries
Web Application Firewall Rules
allBlock SQL injection patterns in username parameter
Add WAF rule: deny requests containing SQL keywords like UNION, SELECT, INSERT in username parameter
🧯 If You Can't Patch
- Isolate the system from internet access and restrict to internal network only
- Implement strict network segmentation and monitor all database access attempts
🔍 How to Verify
Check if Vulnerable:
Test /admin/index.php with SQL injection payloads in username parameter (e.g., admin' OR '1'='1)Check Version:
Check software version in system configuration or about pageVerify Fix Applied:
Attempt SQL injection after implementing parameterized queries and verify error responses are sanitized📡 Detection & Monitoring
Log Indicators:
- Unusual SQL error messages in application logs
- Multiple failed login attempts with SQL patterns in username field
- Database queries with unusual syntax from web application
Network Indicators:
- HTTP POST requests to /admin/index.php containing SQL keywords
- Unusual database connection patterns from web server
SIEM Query:
source="web_logs" AND uri="/admin/index.php" AND (username="*UNION*" OR username="*SELECT*" OR username="*INSERT*")