CVE-2023-27203
📋 TL;DR
Best POS Management System 1.0 contains a SQL injection vulnerability in the id parameter at /billing/home.php. This allows attackers to execute arbitrary SQL commands on the database. Any organization using this specific version of the POS system is affected.
💻 Affected Systems
- Best POS Management System
📦 What is this software?
Best Pos Management System by Best Pos Management System Project
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise leading to data theft, data destruction, authentication bypass, and potential remote code execution on the underlying server.
Likely Case
Unauthorized data access, extraction of sensitive information (customer data, payment details, credentials), and potential privilege escalation.
If Mitigated
Limited impact if proper input validation, parameterized queries, and database permissions are implemented.
🎯 Exploit Status
SQL injection via GET parameter is straightforward to exploit; public proof-of-concept exists.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None found
Restart Required: No
Instructions:
No official patch available. Consider upgrading to a newer version if available, or apply workarounds.
🔧 Temporary Workarounds
Input Validation and Sanitization
allImplement strict input validation and sanitization for the id parameter in /billing/home.php.
Web Application Firewall (WAF)
allDeploy a WAF with SQL injection rules to block malicious requests.
🧯 If You Can't Patch
- Isolate the system from the internet and restrict network access to trusted IPs only.
- Implement strict database permissions, limiting the application's database user to necessary operations only.
🔍 How to Verify
Check if Vulnerable:
Test the /billing/home.php endpoint with SQL injection payloads in the id parameter (e.g., id=1' OR '1'='1).Check Version:
Check the software version in the admin panel or configuration files.Verify Fix Applied:
Verify that SQL injection payloads no longer execute and return error messages or are blocked.📡 Detection & Monitoring
Log Indicators:
- Unusual SQL error messages in application logs
- Multiple requests with SQL-like patterns in the id parameter
Network Indicators:
- HTTP requests to /billing/home.php with suspicious id parameter values
SIEM Query:
source="web_logs" AND uri_path="/billing/home.php" AND (id="*'*" OR id="*OR*" OR id="*UNION*" OR id="*SELECT*")🔗 References
- https://github.com/xiumulty/CVE/blob/main/best%20pos%20management%20system%20v1.0/sql%20in%20home.php.md
- https://www.sourcecodester.com/php/16127/best-pos-management-system-php.html
- https://github.com/xiumulty/CVE/blob/main/best%20pos%20management%20system%20v1.0/sql%20in%20home.php.md
- https://www.sourcecodester.com/php/16127/best-pos-management-system-php.html
