CVE-2008-3954 in Forum Pay Per Post Exchange
Summary
by MITRE
SQL injection vulnerability in index.php in AlstraSoft Forum Pay Per Post Exchange allows remote attackers to execute arbitrary SQL commands via the cat parameter in a showcat action.
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Analysis
by VulDB Data Team • 11/03/2024
The vulnerability identified as CVE-2008-3954 represents a critical SQL injection flaw within the AlstraSoft Forum Pay Per Post Exchange application. This vulnerability specifically targets the index.php script and affects the showcat action functionality, creating a pathway for remote attackers to manipulate the underlying database through malicious input. The flaw arises from insufficient input validation and sanitization of the cat parameter, which is processed without proper escaping or parameterization techniques. This allows attackers to inject malicious SQL code that gets executed within the database context, potentially leading to unauthorized data access, modification, or deletion. The vulnerability falls under the Common Weakness Enumeration category CWE-89, which specifically addresses SQL injection weaknesses where untrusted data is incorporated into SQL commands without proper sanitization.
The operational impact of this vulnerability extends beyond simple data compromise, as it enables attackers to gain elevated privileges within the application's database layer. Remote exploitation requires no authentication and can be executed through standard web browser interactions, making the attack surface particularly broad. Attackers can leverage this vulnerability to extract sensitive information such as user credentials, forum data, and potentially system configuration details. The attack vector operates through the web interface, where the cat parameter in the showcat action becomes the entry point for SQL command injection. This vulnerability directly aligns with ATT&CK technique T1071.004 for application layer protocol usage and T1046 for network service scanning, as attackers typically enumerate web applications before exploiting such vulnerabilities.
The technical exploitation of this vulnerability demonstrates a classic SQL injection pattern where the application fails to implement proper input validation mechanisms. The cat parameter in the showcat action likely undergoes minimal sanitization, allowing attackers to append malicious SQL syntax that alters the intended database query execution flow. Successful exploitation can result in full database compromise, enabling attackers to perform operations such as data extraction, schema enumeration, and potentially command execution on the underlying database server. The vulnerability affects the entire AlstraSoft Forum Pay Per Post Exchange platform, impacting all users who rely on the forum's categorized content display functionality. Organizations using this software face significant risk of data breaches and unauthorized access to sensitive forum information, particularly in environments where user data and discussion content may contain confidential information.
Mitigation strategies for CVE-2008-3954 must focus on implementing robust input validation and parameterized query execution throughout the application codebase. The most effective remediation involves replacing direct SQL query construction with prepared statements or parameterized queries that separate SQL commands from user input data. Additionally, comprehensive input filtering should be implemented to reject or escape special characters that could enable SQL injection attacks. Security headers and web application firewalls can provide additional defense-in-depth layers, though they should not be considered primary mitigations. Regular security code reviews and penetration testing should be conducted to identify similar vulnerabilities across the application stack. The vulnerability highlights the importance of following secure coding practices as outlined in OWASP Top 10 and NIST cybersecurity guidelines, emphasizing the need for input validation and output encoding to prevent injection attacks. Organizations should also implement proper access controls and database user permissions to limit the potential impact of successful exploitation, ensuring that database accounts used by the application have minimal required privileges.