CVE-2023-23279

9.8 CRITICAL

📋 TL;DR

CVE-2023-23279 is a critical SQL injection vulnerability in Canteen Management System 1.0 that allows attackers to execute arbitrary SQL commands via the /php_action/getOrderReport.php endpoint. This affects all organizations using this specific version of the software, potentially exposing sensitive database information. Attackers can manipulate SQL queries to access, modify, or delete data without proper authentication.

💻 Affected Systems

Products:
  • Canteen Management System
Versions: 1.0
Operating Systems: Any OS running PHP and MySQL/MariaDB
Default Config Vulnerable: ⚠️ Yes
Notes: Requires PHP and MySQL/MariaDB database backend. The vulnerability exists in the default installation.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete database compromise including data theft, data destruction, and potential remote code execution leading to full system takeover.

🟠

Likely Case

Unauthorized access to sensitive data (user credentials, financial records, personal information) and potential data manipulation.

🟢

If Mitigated

Limited impact with proper input validation, parameterized queries, and network segmentation preventing database access.

🌐 Internet-Facing: HIGH - The vulnerable endpoint is accessible via web interface, making it directly exploitable from the internet.
🏢 Internal Only: HIGH - Even internal attackers or compromised internal systems can exploit this vulnerability to gain database access.

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

SQL injection vulnerabilities are well-understood and easily weaponized. The public references demonstrate exploitation techniques.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown

Vendor Advisory: No official vendor advisory found

Restart Required: No

Instructions:

1. Review the getOrderReport.php file
2. Replace raw SQL queries with parameterized prepared statements
3. Implement proper input validation and sanitization
4. Test the modified functionality

🔧 Temporary Workarounds

Web Application Firewall (WAF)

all

Deploy a WAF with SQL injection protection rules to block malicious requests

Endpoint Restriction

linux

Restrict access to /php_action/getOrderReport.php to authorized users only

# Apache .htaccess example
Order deny,allow
Deny from all
Allow from 192.168.1.0/24

🧯 If You Can't Patch

  • Isolate the Canteen Management System from critical networks and databases
  • Implement strict network segmentation and monitor all traffic to the vulnerable endpoint

🔍 How to Verify

Check if Vulnerable:

Test the /php_action/getOrderReport.php endpoint with SQL injection payloads like ' OR '1'='1 in parameters

Check Version:

Check the software version in the admin panel or review the source code for version indicators

Verify Fix Applied:

Attempt SQL injection attacks against the patched endpoint and verify they are blocked or sanitized

📡 Detection & Monitoring

Log Indicators:

  • Unusual SQL queries in database logs
  • Multiple failed login attempts followed by SQL syntax in web logs
  • Requests to getOrderReport.php with SQL keywords

Network Indicators:

  • Unusual database connections from web server
  • SQL error messages in HTTP responses
  • Patterns of SQL injection attempts in web traffic

SIEM Query:

source="web_logs" AND uri="/php_action/getOrderReport.php" AND (payload="UNION" OR payload="SELECT" OR payload="INSERT" OR payload="DELETE")

🔗 References

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