CVE-2023-41524

8.8 HIGH

📋 TL;DR

Student Attendance Management System v1 contains a SQL injection vulnerability in the username parameter at index.php. This allows attackers to execute arbitrary SQL commands on the database. Anyone running this specific version of the software is affected.

💻 Affected Systems

Products:
  • Student Attendance Management System
Versions: v1.0
Operating Systems: Any
Default Config Vulnerable: ⚠️ Yes
Notes: Affects the default installation with no modifications. The vulnerability is in the core authentication mechanism.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete database compromise including data theft, data manipulation, authentication bypass, and potential remote code execution if database permissions allow.

🟠

Likely Case

Unauthorized access to student attendance data, grade manipulation, and potential extraction of sensitive user information.

🟢

If Mitigated

Limited impact with proper input validation and database permissions, potentially only error messages or limited data exposure.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

The vulnerability is in the login page, making it easily accessible. Public proof-of-concept exists in the GitHub gist reference.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown

Vendor Advisory: None available

Restart Required: No

Instructions:

1. Download the latest version from the GitHub repository if available. 2. Replace vulnerable index.php with patched version. 3. Test authentication functionality.

🔧 Temporary Workarounds

Input Validation Filter

all

Add input validation to sanitize username parameter before SQL query execution.

Modify index.php to use prepared statements or parameterized queries for the username parameter.

Web Application Firewall

all

Deploy WAF rules to block SQL injection patterns in the username parameter.

Add WAF rule: Detect and block SQL keywords in POST parameters to index.php

🧯 If You Can't Patch

  • Implement network segmentation to restrict access to the application only to authorized users.
  • Enable detailed logging of all authentication attempts and monitor for suspicious SQL patterns.

🔍 How to Verify

Check if Vulnerable:

Test the login page with SQL injection payloads like ' OR '1'='1 in the username field.

Check Version:

Check the software version in the application interface or configuration files.

Verify Fix Applied:

Attempt SQL injection payloads after patching; they should be rejected or sanitized without database errors.

📡 Detection & Monitoring

Log Indicators:

  • Unusual SQL syntax in username field logs
  • Multiple failed login attempts with SQL keywords
  • Database error messages in application logs

Network Indicators:

  • HTTP POST requests to index.php containing SQL injection patterns in parameters

SIEM Query:

source="web_logs" AND uri="/index.php" AND (username="*OR*" OR username="*UNION*" OR username="*SELECT*" OR username="*--*")

🔗 References

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