CVE-2024-5756: Icegram Express SQLi Vulnerability

CVE-2024-5756 Overview

The Email Subscribers by Icegram Express plugin for WordPress is vulnerable to time-based SQL Injection via the db parameter in all versions up to, and including, 5.7.23. This vulnerability arises from insufficient escaping of user-supplied input and inadequate preparation of SQL queries, allowing unauthenticated attackers to execute additional SQL commands, potentially extracting sensitive information from the database.

Critical Impact

This vulnerability can lead to unauthorized data access and potential database manipulation.

Affected Products

• Icegram Express for WordPress

Discovery Timeline

• Not Available
• Not Available
• Not Available
• Not Available
• 2024-06-21 - CVE-2024-5756 published to NVD
• 2024-11-21 - Last updated in NVD database

Technical Details for CVE-2024-5756

Vulnerability Analysis

The vulnerability is classified as an SQL Injection, which can be exploited by injecting malicious SQL statements into an application's queries. This leads to unauthorized queries being executed by the database.

Root Cause

The core issue is improper input validation and lack of escaping for the db parameter, which is used unsafely in SQL queries.

Attack Vector

Attackers can exploit this vulnerability remotely by sending crafted inputs to the web application over the network.

-- Example exploitation code (sanitized)
SELECT * FROM users WHERE username = 'admin' AND password = '' OR '1'='1';

Detection Methods for CVE-2024-5756

Indicators of Compromise

• Unusual database queries in logs
• Anomalous spikes in database response times
• Modification of database structure or data without administrative actions

Detection Strategies

Implement monitoring for unusual SQL query patterns using Intrusion Detection Systems (IDS) designed to track and log SQL queries, such as SQL Slammer.

Monitoring Recommendations

Regularly audit database logs for suspicious activity and establish automated alerts for anomalies that suggest SQL Injection attempts.

How to Mitigate CVE-2024-5756

Immediate Actions Required

• Validate and sanitize all input fields
• Utilize parameterized queries or prepared statements
• Implement a Web Application Firewall (WAF) to filter malicious requests

Patch Information

Applying the latest updates from Icegram once released will be crucial. Regularly check the vendor's website or plugin repository for patches.

Workarounds

Ensure all user input is sanitized and make use of prepared statements.

# Configuration example
# Example SQL injection mitigation in PHP using prepared statements
$stmt = $pdo->prepare('SELECT * FROM users WHERE email = :email');
$stmt->execute(['email' => $email]);
$users = $stmt->fetchAll();