CVE-2006-0490 in ASPThai Forums
Summary
by MITRE
SQL injection vulnerability in login.asp in ASPThai.Net ASPThai Forums 8.0 and earlier allows remote attackers to execute arbitrary SQL commands and bypass login authentication via the password field.
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Analysis
by VulDB Data Team • 08/03/2017
The vulnerability identified as CVE-2006-0490 represents a critical SQL injection flaw within the ASPThai.Net ASPThai Forums 8.0 and earlier versions, specifically affecting the login.asp component. This weakness enables remote attackers to manipulate the application's database interactions through the password field input, fundamentally compromising the authentication mechanism. The vulnerability stems from inadequate input validation and sanitization practices within the web application's codebase, allowing malicious SQL commands to be injected and executed directly against the backend database system.
The technical implementation of this vulnerability resides in how the application processes user input during the authentication phase. When users attempt to log in, the password field value is directly incorporated into SQL query strings without proper parameterization or input sanitization. This design flaw creates an opening for attackers to craft malicious input that alters the intended query execution flow, potentially executing arbitrary database commands with elevated privileges. The vulnerability specifically targets the authentication bypass capability, allowing unauthorized access to user accounts and administrative functions without proper credentials.
The operational impact of this vulnerability extends beyond simple data theft, as it provides attackers with comprehensive access to the forum's user database, including sensitive user information, session tokens, and potentially administrative controls. The remote execution capability means that attackers can exploit this vulnerability from any location without requiring physical access to the system. This vulnerability directly maps to CWE-89, which categorizes SQL injection flaws as weaknesses in software that allows attackers to manipulate database queries through untrusted input. The attack vector aligns with ATT&CK technique T1190, which describes the use of SQL injection to gain unauthorized access to systems.
Mitigation strategies for this vulnerability require immediate implementation of parameterized queries and prepared statements throughout the application codebase, particularly in authentication modules. Input validation and sanitization measures must be strengthened to filter out potentially malicious SQL characters and sequences. The application should implement proper error handling that does not reveal database structure information to users. Additionally, access controls and authentication mechanisms should be reviewed to ensure that even if one vulnerability is exploited, the overall system remains protected. Regular security audits and code reviews focusing on database interaction patterns are essential to prevent similar vulnerabilities from emerging in future versions. The implementation of web application firewalls and intrusion detection systems can provide additional layers of protection against such attacks.