CVE-2023-50070
📋 TL;DR
CVE-2023-50070 is a SQL injection vulnerability in Sourcecodester Customer Support System 1.0 that allows attackers to execute arbitrary SQL commands via the /customer_support/ajax.php endpoint. This affects all users running the vulnerable version of the software, potentially leading to data theft, manipulation, or system compromise.
💻 Affected Systems
- Sourcecodester Customer Support System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise leading to data exfiltration, privilege escalation, and potential remote code execution on the underlying server.
Likely Case
Unauthorized access to sensitive customer support data, including personal information, ticket details, and potentially authentication credentials.
If Mitigated
Limited impact with proper input validation and parameterized queries preventing SQL injection.
🎯 Exploit Status
Exploitation requires access to the customer support interface, but SQL injection payloads are well-documented and easy to craft.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: Not available
Restart Required: No
Instructions:
No official patch available. Implement workarounds or migrate to alternative software.
🔧 Temporary Workarounds
Input Validation and Sanitization
allImplement strict input validation and parameterized queries for department_id, customer_id, and subject parameters.
Modify /customer_support/ajax.php to use prepared statements with PDO or mysqli
Web Application Firewall (WAF)
allDeploy a WAF with SQL injection protection rules to block malicious requests.
🧯 If You Can't Patch
- Isolate the system behind a reverse proxy with strict input filtering
- Implement network segmentation to limit database access from the application server
🔍 How to Verify
Check if Vulnerable:
Test the /customer_support/ajax.php?action=save_ticket endpoint with SQL injection payloads in department_id, customer_id, or subject parameters.Check Version:
Check the software version in the application's admin panel or configuration files.Verify Fix Applied:
Verify that parameterized queries are implemented and test with SQL injection payloads to confirm they are blocked.📡 Detection & Monitoring
Log Indicators:
- Unusual SQL error messages in application logs
- Multiple failed login attempts followed by SQL injection patterns
- Requests with SQL keywords in parameters
Network Indicators:
- HTTP requests containing SQL injection payloads to /customer_support/ajax.php
- Unusual database query patterns from the application server
SIEM Query:
source="web_server" AND uri="/customer_support/ajax.php" AND (param="department_id" OR param="customer_id" OR param="subject") AND (content="UNION" OR content="SELECT" OR content="INSERT" OR content="DELETE")