CVE-2007-6138 in Mass Mailer
Summary
by MITRE
SQL injection vulnerability in redir.asp in VU Mass Mailer allows remote attackers to execute arbitrary SQL commands via the password parameter to Default.asp (aka the Login Page). NOTE: some of these details are obtained from third party information.
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Analysis
by VulDB Data Team • 10/06/2024
The vulnerability identified as CVE-2007-6138 represents a critical SQL injection flaw within the VU Mass Mailer application's redir.asp component. This vulnerability specifically targets the authentication mechanism of the system, where the password parameter in Default.asp (the login page) is improperly validated and processed. The flaw exists in the web application's input handling logic, where user-supplied data flows directly into SQL query construction without adequate sanitization or parameterization. This creates an exploitable condition where malicious actors can manipulate the authentication flow by injecting crafted SQL commands through the password field.
The technical nature of this vulnerability aligns with CWE-89, which categorizes SQL injection as a direct result of insufficient input validation and improper query construction. The attack vector operates through the web application's login interface, where the password parameter is processed without proper escaping or parameter binding mechanisms. When an attacker submits malicious SQL code through the password field, the application's backend database processes these commands with elevated privileges, potentially allowing full database access or administrative control over the mailer system. This vulnerability demonstrates poor secure coding practices and inadequate input validation at the application layer.
The operational impact of this vulnerability extends beyond simple unauthorized access, as it provides attackers with the capability to execute arbitrary SQL commands against the underlying database. Successful exploitation could result in complete data compromise, including user credentials, mailing lists, and potentially sensitive information stored within the database. The vulnerability affects the entire authentication system, meaning that any attempt to log in could be leveraged for malicious purposes. Additionally, attackers might use this vulnerability to escalate privileges, modify or delete database records, and potentially gain persistence within the system. The remote nature of this attack means that no local system access is required, making it particularly dangerous for web-based applications.
Mitigation strategies for this vulnerability must address both immediate remediation and long-term security improvements. The primary solution involves implementing proper parameterized queries or prepared statements for all database interactions, ensuring that user input is never directly concatenated into SQL commands. Input validation and sanitization should be enforced at multiple layers, including the application and database levels. The application should also implement proper error handling to prevent information leakage that could aid attackers in crafting further exploits. Security measures should include regular code reviews focusing on SQL injection prevention, implementation of web application firewalls, and adherence to secure coding standards such as those defined in the OWASP Top Ten. Organizations should also consider implementing database activity monitoring and regular penetration testing to identify similar vulnerabilities across their entire application portfolio.