CVE-2009-2326 in KerviNet Forum
Summary
by MITRE
Multiple SQL injection vulnerabilities in KerviNet Forum 1.1 and earlier allow remote attackers to execute arbitrary SQL commands via (1) an enter_parol cookie to index.php in an auto action or (2) the topic parameter to message.php. NOTE: vector 2 can be leveraged for a cross-site scripting (XSS) attack.
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Analysis
by VulDB Data Team • 12/02/2024
The vulnerability described in CVE-2009-2326 represents a critical security flaw in KerviNet Forum version 1.1 and earlier systems, exposing the platform to multiple attack vectors that can lead to complete system compromise. This vulnerability stems from inadequate input validation and sanitization within the forum's web application, creating pathways for malicious actors to inject and execute arbitrary SQL commands remotely. The affected components include the index.php script handling the auto action and the message.php script processing the topic parameter, both of which fail to properly filter user-supplied data before incorporating it into database queries.
The technical implementation of this vulnerability manifests through SQL injection attacks that exploit the forum's failure to sanitize cookie values and GET parameters. When an attacker manipulates the enter_parol cookie value sent to index.php during an auto action, or when they submit a malicious topic parameter to message.php, the application directly incorporates these unvalidated inputs into SQL queries without proper escaping or parameterization. This creates a condition where attacker-controlled data can alter the intended execution flow of database commands, potentially allowing for data extraction, modification, or deletion. The vulnerability specifically maps to CWE-89 which defines SQL injection as the improper handling of database queries where user-supplied data is directly concatenated into SQL statements without adequate sanitization.
The operational impact of this vulnerability extends beyond simple data compromise to encompass full system control and potential lateral movement within network environments. Remote attackers can leverage these injection points to escalate privileges, extract sensitive user information including passwords and personal data, manipulate forum content, and potentially gain access to underlying database systems. The cross-site scripting capability mentioned in the description further amplifies the threat landscape, as attackers can combine SQL injection with XSS to create persistent threats that can compromise user sessions and facilitate more sophisticated attacks. This vulnerability aligns with ATT&CK technique T1071.004 which covers application layer protocol manipulation, and T1213.002 which addresses data from information repositories.
Mitigation strategies for CVE-2009-2326 must address both the immediate SQL injection vulnerabilities and the secondary XSS risks. Organizations should implement proper input validation and sanitization across all user-facing parameters, particularly cookie values and URL parameters. The recommended approach involves utilizing prepared statements or parameterized queries to ensure that user input is properly escaped and treated as data rather than executable code. Additionally, implementing proper output encoding and Content Security Policy headers can help prevent XSS exploitation. The most effective long-term solution requires upgrading to a supported version of KerviNet Forum that includes proper input validation mechanisms and follows modern security practices for web application development. Security measures should also include regular penetration testing, web application firewalls, and comprehensive monitoring of database access patterns to detect anomalous activity that might indicate exploitation attempts.