CVE-2024-4932

6.3 MEDIUM

📋 TL;DR

This is a critical SQL injection vulnerability in SourceCodester Simple Online Bidding System 1.0 that allows attackers to manipulate database queries through the 'id' parameter in the admin interface. Attackers can exploit this remotely to potentially access, modify, or delete sensitive data. Organizations using this specific version of the bidding system are affected.

💻 Affected Systems

Products:
  • SourceCodester Simple Online Bidding System
Versions: 1.0
Operating Systems: Any OS running PHP/MySQL web server
Default Config Vulnerable: ⚠️ Yes
Notes: Requires the admin interface to be accessible. The vulnerability is in the default installation.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

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

🟠

Likely Case

Unauthorized access to sensitive user data, bidding information, and administrative credentials stored in the database.

🟢

If Mitigated

Limited impact with proper input validation and database permission restrictions in place.

🌐 Internet-Facing: HIGH - The vulnerability is remotely exploitable and the system is designed for web access.
🏢 Internal Only: MEDIUM - Still exploitable by internal attackers or through compromised internal systems.

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ✅ No
Complexity: LOW

Exploit requires access to the admin interface. The vulnerability is in a common parameter manipulation pattern that is easily weaponized.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown

Vendor Advisory: None available

Restart Required: No

Instructions:

No official patch available. Implement parameterized queries or input validation in /simple-online-bidding-system/admin/index.php?page=manage_user file.

🔧 Temporary Workarounds

Input Validation and Sanitization

all

Add input validation to sanitize the 'id' parameter before processing SQL queries.

Modify PHP code to use prepared statements: $stmt = $conn->prepare('SELECT * FROM users WHERE id = ?'); $stmt->bind_param('i', $_GET['id']);

Web Application Firewall Rules

all

Implement WAF rules to block SQL injection patterns targeting the vulnerable endpoint.

Add WAF rule: Block requests containing SQL keywords (UNION, SELECT, INSERT, etc.) in the 'id' parameter of /admin/index.php

🧯 If You Can't Patch

  • Restrict access to the admin interface using IP whitelisting or VPN requirements.
  • Implement database-level restrictions to limit the impact of successful SQL injection attacks.

🔍 How to Verify

Check if Vulnerable:

Test the vulnerable endpoint with SQL injection payloads: /simple-online-bidding-system/admin/index.php?page=manage_user&id=1' OR '1'='1

Check Version:

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

Verify Fix Applied:

Test with the same payloads and verify they are rejected or properly sanitized without affecting database queries.

📡 Detection & Monitoring

Log Indicators:

  • Unusual SQL error messages in application logs
  • Multiple failed login attempts followed by SQL injection patterns
  • Requests with SQL keywords in the 'id' parameter

Network Indicators:

  • Unusual database query patterns from the web server
  • Large data transfers from the database to external IPs

SIEM Query:

source="web_logs" AND (uri="/admin/index.php" AND query_string="*id=*'*" OR query_string="*id=*%27*")

🔗 References

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