CVE-2022-25394

9.8 CRITICAL

📋 TL;DR

This vulnerability allows attackers to execute arbitrary SQL commands via the cid parameter in the customer-add.php file of Medical Store Management System v1.0. This affects all deployments of this specific software version that expose the vulnerable endpoint. Attackers can potentially access, modify, or delete sensitive medical and customer data.

💻 Affected Systems

Products:
  • Medical Store Management System
Versions: v1.0
Operating Systems: Any OS running PHP with database backend
Default Config Vulnerable: ⚠️ Yes
Notes: Affects all installations of v1.0. The vulnerability is in the core application code, not dependent on specific configurations.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete database compromise leading to data theft, data destruction, authentication bypass, and potential remote code execution through database functions.

🟠

Likely Case

Unauthorized access to sensitive medical records, customer information, and potential data exfiltration or modification.

🟢

If Mitigated

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

🌐 Internet-Facing: HIGH - Web applications with SQL injection vulnerabilities are prime targets for automated attacks when exposed to the internet.
🏢 Internal Only: MEDIUM - Internal attackers or compromised internal systems could still exploit this vulnerability to access sensitive data.

🎯 Exploit Status

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

SQL injection vulnerabilities are well-understood with many automated tools available. The public GitHub repository contains details about the vulnerability.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown

Vendor Advisory: No official vendor advisory found

Restart Required: No

Instructions:

1. Check for updated version from the vendor. 2. If no patch available, implement workarounds. 3. Replace vulnerable parameter handling with parameterized queries. 4. Validate and sanitize all user inputs.

🔧 Temporary Workarounds

Web Application Firewall (WAF)

all

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

Input Validation Filter

all

Implement server-side input validation to reject suspicious cid parameter values

// PHP example: if(!is_numeric($_GET['cid'])) { die('Invalid input'); }

🧯 If You Can't Patch

  • Network segmentation: Isolate the application server from critical database systems
  • Implement strict access controls and monitoring for database queries

🔍 How to Verify

Check if Vulnerable:

Test the customer-add.php endpoint with SQL injection payloads like: customer-add.php?cid=1' OR '1'='1

Check Version:

Check application version in admin panel or configuration files

Verify Fix Applied:

Test with same payloads after fixes - should return error messages or no database errors

📡 Detection & Monitoring

Log Indicators:

  • Unusual database error messages in application logs
  • Multiple failed login attempts or parameter manipulation in access logs
  • Suspicious SQL keywords in URL parameters (UNION, SELECT, INSERT, etc.)

Network Indicators:

  • Unusual database connection patterns
  • Large data transfers from database server

SIEM Query:

source="web_logs" AND (url="*customer-add.php*" AND (url="*UNION*" OR url="*SELECT*" OR url="*INSERT*" OR url="*' OR '*"))

🔗 References

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