CVE-2009-2604 in Zen Help Desk
Summary
by MITRE
Multiple SQL injection vulnerabilities in adminlogin.asp in Zen Help Desk 2.1 allow remote attackers to execute arbitrary SQL commands via the (1) userid (aka username) and (2) PassWord parameters to admin.asp.
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Analysis
by VulDB Data Team • 11/30/2024
The vulnerability identified as CVE-2009-2604 represents a critical security flaw in Zen Help Desk version 2.1 that exposes the application to remote SQL injection attacks. This vulnerability specifically affects the adminlogin.asp component where user authentication occurs, making it a prime target for malicious actors seeking unauthorized access to administrative functions. The flaw stems from inadequate input validation and sanitization within the application's authentication mechanism, creating a pathway for attackers to manipulate the underlying database queries through carefully crafted malicious input.
The technical implementation of this vulnerability occurs through two primary parameter injection points within the admin.asp script. The first injection vector targets the userid parameter, commonly known as username, while the second targets the PassWord parameter, which handles password authentication. Both parameters are processed without proper sanitization or parameterization, allowing attackers to inject malicious SQL code that gets executed within the database context. This type of vulnerability falls under CWE-89, which specifically addresses SQL injection flaws where untrusted data is incorporated into SQL commands without proper validation or escaping mechanisms. The vulnerability demonstrates a classic lack of input validation that violates fundamental security principles for database interactions.
The operational impact of this vulnerability extends far beyond simple data theft, as it provides attackers with complete control over the administrative functions of the help desk system. Successful exploitation could enable attackers to bypass authentication mechanisms entirely, gain access to sensitive user data, modify or delete critical system information, and potentially escalate privileges to execute arbitrary commands on the underlying database server. The implications are particularly severe in enterprise environments where help desk systems often contain confidential customer information, internal communications, and system administrative details. According to ATT&CK framework, this vulnerability maps to T1190 - Exploit Public-Facing Application, where attackers leverage application weaknesses to gain unauthorized access, and T1071.005 - Application Layer Protocol: Web Protocols, as the attack vector utilizes HTTP-based web application interfaces.
Mitigation strategies for this vulnerability require immediate attention and implementation of multiple defensive measures. The most critical remediation involves implementing proper parameterized queries or prepared statements throughout the application to ensure that user input is never directly incorporated into SQL command construction. Input validation and sanitization should be enforced at multiple layers, including client-side and server-side validation, with strict whitelisting of acceptable characters and patterns. Additionally, the application should implement proper error handling that does not reveal database structure information to users, as this can aid attackers in crafting more sophisticated attacks. The system should also enforce strong authentication mechanisms including account lockout policies and multi-factor authentication to reduce the impact of successful exploitation attempts. Security patches should be applied immediately to upgrade to a version of Zen Help Desk that addresses this vulnerability, as the original version 2.1 is no longer supported and lacks proper security controls. Network segmentation and monitoring should be implemented to detect and prevent unauthorized access attempts, while regular security audits should be conducted to identify similar vulnerabilities in other applications within the organization's infrastructure.