CVE-2023-49677
📋 TL;DR
Job Portal v1.0 contains an unauthenticated SQL injection vulnerability in the 'cmbQual' parameter of Employer/InsertJob.php. Attackers can execute arbitrary SQL commands without authentication, potentially compromising the entire database. All deployments of Job Portal v1.0 are affected.
💻 Affected Systems
- Job Portal
📦 What is this software?
Job Portal by Kashipara
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including data theft, data destruction, privilege escalation to admin, and potential remote code execution via database functions.
Likely Case
Database information disclosure, credential theft, and unauthorized data modification affecting job postings and user accounts.
If Mitigated
Limited impact with proper input validation and database permissions, potentially only read access to non-sensitive data.
🎯 Exploit Status
SQL injection is well-understood with many automated tools available. The unauthenticated nature makes exploitation trivial.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://www.kashipara.com/
Restart Required: No
Instructions:
1. Check vendor website for updated version. 2. If no patch available, implement workarounds. 3. Consider replacing with alternative software.
🔧 Temporary Workarounds
Input Validation Filter
allAdd server-side validation to sanitize 'cmbQual' parameter before processing
Modify Employer/InsertJob.php to validate/sanitize user input using prepared statements
Web Application Firewall (WAF)
allDeploy WAF to block SQL injection patterns
Configure WAF rules to detect and block SQL injection attempts
🧯 If You Can't Patch
- Isolate the Job Portal system from internet access and restrict to internal network only
- Implement strict network segmentation and monitor all database queries for suspicious patterns
🔍 How to Verify
Check if Vulnerable:
Test Employer/InsertJob.php endpoint with SQL injection payloads in cmbQual parameterCheck Version:
Check software version in admin panel or configuration filesVerify Fix Applied:
Verify prepared statements are implemented and test with SQL injection payloads📡 Detection & Monitoring
Log Indicators:
- Unusual database queries from web server
- Multiple failed login attempts after SQL errors
- Database error messages in web logs
Network Indicators:
- HTTP requests to Employer/InsertJob.php with SQL keywords in parameters
- Unusual database traffic patterns
SIEM Query:
source="web_logs" AND uri="*InsertJob.php*" AND (param="*cmbQual*" AND value="*UNION*" OR value="*SELECT*" OR value="*INSERT*" OR value="*DELETE*")