CVE-2007-1909 in Battle.net Clan Script
Summary
by MITRE
SQL injection vulnerability in login.php in Ryan Haudenschilt Battle.net Clan Script for PHP 1.5.1 and earlier allows remote attackers to execute arbitrary SQL commands via the (1) user or (2) pass parameter.
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Analysis
by VulDB Data Team • 09/04/2024
The vulnerability described in CVE-2007-1909 represents a critical SQL injection flaw within the Battle.net Clan Script for PHP version 1.5.1 and earlier. This web application serves as a platform for managing clan information and user authentication for Battle.net gaming communities, making it a prime target for malicious actors seeking unauthorized access to gaming networks and user data. The vulnerability specifically affects the login.php script which handles user authentication requests, creating a pathway for attackers to manipulate the underlying database queries through crafted input parameters.
The technical implementation of this vulnerability stems from improper input validation and sanitization within the authentication mechanism. Attackers can exploit this weakness by injecting malicious SQL code through either the user or pass parameters in the login.php script. When these parameters are directly incorporated into SQL queries without proper escaping or parameterization, the application becomes susceptible to manipulation. The vulnerability is classified as CWE-89, which specifically addresses SQL injection flaws where untrusted data is incorporated into SQL commands without adequate protection mechanisms. This allows threat actors to construct malicious SQL statements that can bypass authentication, extract sensitive data, modify database contents, or even execute system commands depending on the database configuration and privileges.
The operational impact of this vulnerability extends beyond simple unauthorized access, as it can enable comprehensive database compromise within the affected gaming community platform. Successful exploitation could result in complete disclosure of user credentials, personal information, and clan data stored in the database. From an adversarial perspective, this vulnerability aligns with ATT&CK technique T1190, which describes the use of vulnerabilities in web applications to gain access to systems. The attack surface is particularly concerning given that the application manages authentication for gaming communities where users often have valuable gaming accounts, personal information, and potentially sensitive social connections. The vulnerability's remote nature means that attackers do not require physical access to the system, making it a significant risk for any organization running this software version.
Mitigation strategies for this vulnerability must focus on immediate remediation through proper input validation and parameterized queries. The most effective approach involves implementing prepared statements or parameterized queries to ensure that user input is properly escaped and treated as data rather than executable code. Organizations should also implement proper input sanitization techniques, including whitelisting allowed characters and lengths for authentication parameters. Additionally, the application should be updated to a newer version of the Battle.net Clan Script that addresses this vulnerability, as version 1.5.1 and earlier are no longer supported. Security measures should include monitoring for suspicious login patterns and implementing rate limiting to prevent automated exploitation attempts. The vulnerability demonstrates the critical importance of proper database security practices and the necessity of regular security updates in web applications, particularly those handling user authentication and sensitive data.