CVE-2023-46024

7.5 HIGH

📋 TL;DR

This SQL injection vulnerability in phpgurukul Teacher Subject Allocation Management System 1.0 allows attackers to execute arbitrary SQL commands through the 'searchdata' parameter in index.php. Attackers can potentially access, modify, or delete database information including sensitive user data. Organizations using this specific software version are affected.

💻 Affected Systems

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

📦 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 if database permissions allow.

🟠

Likely Case

Unauthorized access to sensitive information including teacher and student data, grade records, and system credentials.

🟢

If Mitigated

Limited impact with proper input validation and database permissions, potentially only read access to non-sensitive data.

🌐 Internet-Facing: HIGH - The vulnerability is in index.php which is typically internet-facing, allowing remote exploitation without authentication.
🏢 Internal Only: MEDIUM - Internal systems could still be exploited by malicious insiders or compromised internal accounts.

🎯 Exploit Status

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

SQL injection via GET/POST parameter requires minimal technical skill. Public proof-of-concept exists in GitHub repository.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown

Vendor Advisory: Not available

Restart Required: No

Instructions:

No official patch available. Implement parameterized queries or input validation in index.php around the searchdata parameter.

🔧 Temporary Workarounds

Input Validation Filter

all

Add input validation to sanitize the searchdata parameter before processing

Add to index.php: $searchdata = mysqli_real_escape_string($conn, $_GET['searchdata']);

Web Application Firewall Rule

all

Block SQL injection patterns in the searchdata parameter

ModSecurity rule: SecRule ARGS:searchdata "@detectSQLi" "id:1001,phase:2,deny"

🧯 If You Can't Patch

  • Implement network segmentation to isolate the system from internet access
  • Deploy a web application firewall (WAF) with SQL injection protection rules

🔍 How to Verify

Check if Vulnerable:

Test by sending SQL injection payloads to the searchdata parameter: index.php?searchdata=' OR '1'='1

Check Version:

Check system documentation or about page; version may be displayed in footer or admin panel

Verify Fix Applied:

Test with same SQL injection payloads; system should return error or sanitized response without executing SQL

📡 Detection & Monitoring

Log Indicators:

  • Unusual SQL errors in application logs
  • Multiple requests with SQL keywords in searchdata parameter
  • Requests with unusual characters like quotes, semicolons, or comments in search parameter

Network Indicators:

  • HTTP requests containing SQL injection patterns in GET/POST parameters
  • Unusual database query patterns from web server

SIEM Query:

web.url:*searchdata=* AND (web.url:*OR* OR web.url:*UNION* OR web.url:*SELECT* OR web.url:*--*)

🔗 References

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