CVE-2023-49681
📋 TL;DR
Job Portal v1.0 contains an unauthenticated SQL injection vulnerability in the 'cmbQual' parameter of Employer/InsertWalkin.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, authentication bypass, and potential remote code execution via database functions.
Likely Case
Database information disclosure, credential theft, and potential privilege escalation.
If Mitigated
Limited impact with proper input validation and database permissions restricting damage to the affected table.
🎯 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. Replace vulnerable files with patched versions
3. Test functionality after update
🔧 Temporary Workarounds
Input Validation Filter
allAdd server-side validation to sanitize the cmbQual parameter before processing
Modify Employer/InsertWalkin.php to validate/sanitize user input
Web Application Firewall
allDeploy WAF with SQL injection protection rules
🧯 If You Can't Patch
- Block external access to the vulnerable endpoint using network firewall rules
- Implement database user with minimal permissions (read-only if possible)
🔍 How to Verify
Check if Vulnerable:
Test Employer/InsertWalkin.php endpoint with SQL injection payloads in cmbQual parameterCheck Version:
Check application version in admin panel or configuration filesVerify Fix Applied:
Attempt SQL injection after applying fixes and confirm error responses or blocked requests📡 Detection & Monitoring
Log Indicators:
- Unusual SQL error messages in application logs
- Multiple failed parameter validation attempts
Network Indicators:
- Requests to Employer/InsertWalkin.php with SQL keywords in parameters
- Unusual database query patterns
SIEM Query:
source="web_logs" AND uri="*InsertWalkin.php*" AND (param="*cmbQual*" AND value="*SELECT* OR *UNION* OR *OR 1=1*")