CVE-2008-6812 in phpWebNews
Summary
by MITRE
SQL injection vulnerability in bukutamu.php in phpWebNews 0.2 MySQL Edition allows remote attackers to execute arbitrary SQL commands via the det parameter.
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Analysis
by VulDB Data Team • 10/31/2024
The vulnerability identified as CVE-2008-6812 represents a critical SQL injection flaw within the phpWebNews 0.2 MySQL Edition content management system. This vulnerability specifically affects the bukutamu.php script which handles guestbook functionality, making it a prime target for malicious actors seeking to compromise web applications. The flaw stems from inadequate input validation and sanitization practices that fail to properly escape or filter user-supplied data before incorporating it into database queries. This type of vulnerability falls under the common weakness enumeration CWE-89, which categorizes SQL injection as a fundamental web application security weakness that allows attackers to manipulate database operations through malicious input.
The technical exploitation of this vulnerability occurs through the det parameter within the bukutamu.php script, where remote attackers can inject malicious SQL code that gets executed on the underlying MySQL database server. When a user submits data through the guestbook interface, the det parameter receives input that is directly concatenated into SQL queries without proper sanitization. This creates an opportunity for attackers to manipulate the intended database behavior, potentially gaining unauthorized access to sensitive data, modifying database records, or even executing administrative commands on the database server. The vulnerability's remote nature means that attackers do not require local system access or authentication credentials to exploit the flaw, making it particularly dangerous in publicly accessible web environments.
The operational impact of this vulnerability extends beyond simple data theft, as successful exploitation can lead to complete database compromise and potential system infiltration. Attackers could extract confidential information including user credentials, personal data, and application configuration details that could be used for further attacks. The vulnerability also enables privilege escalation opportunities where attackers might gain administrative access to the database, allowing them to modify or delete critical data. According to ATT&CK framework category T1190, this vulnerability represents a technique used for exploiting remote services, while the broader impact aligns with T1071.004 for application layer protocol manipulation. Organizations running vulnerable phpWebNews installations face significant risk of data breaches, regulatory compliance violations, and potential legal consequences from unauthorized data access.
Mitigation strategies for CVE-2008-6812 must address both immediate remediation and long-term security hardening measures. The most effective immediate solution involves implementing proper input validation and parameterized queries to prevent user input from being interpreted as SQL commands. Organizations should apply the latest security patches provided by phpWebNews developers or migrate to supported, secure content management systems. Input sanitization techniques including the use of prepared statements, stored procedures, and proper escaping of special characters should be implemented throughout the application codebase. Additionally, network-level protections such as web application firewalls and intrusion detection systems can help detect and block exploitation attempts. Regular security audits and penetration testing should be conducted to identify similar vulnerabilities in other application components, as this vulnerability demonstrates poor coding practices that may exist elsewhere in the application. The remediation process should also include comprehensive monitoring of database activities and access logs to detect any unauthorized exploitation attempts that may have occurred.