CVE-2012-4034 in PBBoard
Summary
by MITRE
Multiple SQL injection vulnerabilities in PBBoard 2.1.4 allow remote attackers to execute arbitrary SQL commands via the (1) username parameter to the send page, (2) email parameter to the forget page, (3) password parameter to the forum_archive page, (4) section parameter to the management page, (5) section_id parameter to the managementreply page, (6) member_id parameter to the new_password page, or (7) subjectid parameter to the tags page to index.php.
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Analysis
by VulDB Data Team • 02/13/2025
The vulnerability identified as CVE-2012-4034 represents a critical SQL injection flaw affecting PBBoard version 2.1.4, a popular web-based bulletin board system. This vulnerability manifests across multiple entry points within the application's web interface, creating extensive attack surface for malicious actors seeking to compromise the system's database integrity. The flaw stems from inadequate input validation and sanitization mechanisms that fail to properly escape or filter user-supplied data before incorporating it into SQL query structures. According to CWE-89, this vulnerability directly maps to improper neutralization of special elements used in SQL commands, a fundamental weakness in database security practices that has been consistently documented as one of the most dangerous web application vulnerabilities.
The technical exploitation of this vulnerability occurs through the manipulation of specific HTTP parameters across various pages of the PBBoard application. Attackers can inject malicious SQL payloads through the username parameter on the send page, email parameter on the forget page, password parameter on the forum_archive page, section parameter on the management page, section_id parameter on the managementreply page, member_id parameter on the new_password page, and subjectid parameter on the tags page within the index.php file. These parameters are processed without adequate sanitization, allowing attackers to craft SQL commands that execute with the privileges of the database user associated with the web application. The attack vector operates entirely through HTTP requests, requiring no authentication or privileged access, making it particularly dangerous for publicly accessible web applications.
The operational impact of this vulnerability extends beyond simple data theft, as successful exploitation can result in complete database compromise including unauthorized data modification, deletion, or extraction of sensitive information. Attackers could potentially escalate privileges within the database to gain administrative access, modify user accounts, or even execute system-level commands if the database server permits such operations. The implications for organizations using PBBoard 2.1.4 are severe, as this vulnerability could lead to unauthorized access to user credentials, private messages, forum content, and potentially expose the underlying system to further attacks. According to ATT&CK framework's T1190 technique, this vulnerability enables adversaries to perform initial access and persistence activities by leveraging the SQL injection to establish a foothold within the target environment.
Mitigation strategies for CVE-2012-4034 require immediate implementation of input validation and parameterized query approaches to prevent the injection of malicious SQL code. Organizations should implement proper sanitization of all user inputs, particularly those used in database queries, and adopt prepared statements or parameterized queries to ensure that user data is properly escaped and treated as literal values rather than executable code. The vulnerability also highlights the importance of regular security updates and patch management, as PBBoard 2.1.4 was vulnerable to this issue that has since been addressed in newer versions. Additionally, implementing web application firewalls and input filtering mechanisms can provide additional layers of protection against such attacks. Security monitoring should include detection of unusual database query patterns and SQL error messages that may indicate exploitation attempts. The vulnerability demonstrates the critical need for secure coding practices and comprehensive security testing throughout the software development lifecycle to prevent such fundamental flaws from reaching production environments.