CVE-2024-0344: Soxft TimeMail SQL Injection Vulnerability

CVE-2024-0344 Overview

A critical SQL injection vulnerability has been discovered in soxft TimeMail versions up to 1.1. This vulnerability exists in the check.php file, where improper handling of the argument c allows attackers to inject malicious SQL commands. The exploit has been publicly disclosed, increasing the risk of active exploitation against vulnerable deployments.

Critical Impact

This SQL injection vulnerability allows unauthenticated attackers to execute arbitrary SQL commands against the database, potentially leading to complete data breach, unauthorized data manipulation, and system compromise.

Affected Products

• soxft TimeMail versions up to and including 1.1

Discovery Timeline

• January 9, 2024 - CVE-2024-0344 published to NVD
• November 21, 2024 - Last updated in NVD database

Technical Details for CVE-2024-0344

Vulnerability Analysis

This vulnerability is classified as CWE-89 (SQL Injection), a well-known and highly exploitable web application security flaw. The vulnerable endpoint check.php accepts user-supplied input through the c parameter without proper validation or sanitization before incorporating it into SQL queries. This allows attackers to manipulate the database query structure and execute arbitrary SQL statements.

SQL injection vulnerabilities of this nature typically enable attackers to bypass authentication mechanisms, extract sensitive data from the database, modify or delete existing records, and in some configurations, execute operating system commands on the underlying server.

Root Cause

The root cause of this vulnerability lies in the failure to properly sanitize or parameterize user input in the check.php file. The c argument is directly concatenated or interpolated into SQL queries without using prepared statements or input validation, creating a classic SQL injection attack surface. This represents a fundamental secure coding oversight where untrusted user input is treated as trusted data within database operations.

Attack Vector

The attack vector is network-based and requires no authentication or user interaction, making it highly accessible to remote attackers. An attacker can craft malicious HTTP requests to the check.php endpoint, injecting SQL syntax through the c parameter. The attack can be performed using common tools such as SQLMap or through manual crafted requests.

The vulnerability can be exploited by appending SQL syntax to the c parameter value in HTTP requests targeting the check.php endpoint. Attackers may use techniques such as UNION-based injection to extract data, boolean-based blind injection to enumerate database contents, or time-based blind injection when direct output is not available. For detailed technical analysis, refer to the ZhaoJ Blog Post and VulDB entry #250112.

Detection Methods for CVE-2024-0344

Indicators of Compromise

• Suspicious HTTP requests to check.php containing SQL keywords such as UNION, SELECT, INSERT, UPDATE, DELETE, or DROP in the c parameter
• Anomalous database query patterns or errors in application logs indicating malformed SQL syntax
• Unexpected database access patterns or bulk data extraction activities
• Web server logs showing requests with URL-encoded SQL injection payloads targeting the c parameter

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect and block common SQL injection patterns in requests to check.php
• Implement database activity monitoring to identify unusual query execution patterns or unauthorized data access
• Configure intrusion detection systems (IDS) to alert on SQL injection attack signatures in HTTP traffic
• Enable verbose logging on the TimeMail application to capture and analyze suspicious parameter values

Monitoring Recommendations

• Monitor web server access logs for repeated requests to check.php with varying payloads in the c parameter
• Set up alerts for database errors that may indicate SQL injection attempts, such as syntax errors or constraint violations
• Implement real-time security information and event management (SIEM) correlation rules for SQL injection attack patterns
• Regularly audit database user privileges and access patterns to detect potential post-exploitation activity

How to Mitigate CVE-2024-0344

Immediate Actions Required

• Restrict or disable access to the check.php endpoint until a patch can be applied
• Implement input validation at the web server or WAF level to filter SQL injection payloads from the c parameter
• Review and restrict database user permissions used by the TimeMail application to minimize potential impact
• Enable detailed logging to capture any exploitation attempts for forensic analysis

Patch Information

No official vendor patch has been identified in the available CVE data. Users should monitor the soxft TimeMail project for security updates. In the absence of an official patch, implementing the workarounds and protective measures described below is strongly recommended. For additional context, consult the VulDB vulnerability entry.

Workarounds

• Implement a Web Application Firewall (WAF) with SQL injection detection rules to filter malicious requests before they reach the application
• Apply input validation at the application level by modifying check.php to use prepared statements with parameterized queries for any database interactions involving the c parameter
• Restrict network access to the TimeMail application to trusted IP addresses only using firewall rules
• Consider disabling or removing the check.php functionality if it is not essential to business operations

# Example WAF rule to block SQL injection attempts (ModSecurity)
SecRule ARGS:c "@detectSQLi" \
    "id:100001,\
    phase:2,\
    block,\
    msg:'SQL Injection attempt detected in TimeMail check.php',\
    log,\
    severity:'CRITICAL'"