CVE-2008-5643 in Com Books
Summary
by MITRE
SQL injection vulnerability in the Books (com_books) component for Joomla! allows remote attackers to execute arbitrary SQL commands via the book_id parameter in a book_details action to index.php.
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Analysis
by VulDB Data Team • 11/11/2024
The vulnerability identified as CVE-2008-5643 represents a critical sql injection flaw within the com_books component of Joomla! content management systems. This vulnerability specifically affects the book_details action within the index.php file, creating an exploitable condition where malicious actors can manipulate database queries through the book_id parameter. The flaw exists due to insufficient input validation and sanitization of user-supplied data, allowing attackers to inject malicious sql code that bypasses normal authentication and authorization mechanisms. Such vulnerabilities fall under the common weakness enumeration category CWE-89 which specifically addresses sql injection attacks, making this a well-documented and serious security concern within web application frameworks.
The technical implementation of this vulnerability stems from improper parameter handling within the com_books component where the book_id parameter is directly incorporated into sql query construction without adequate sanitization or parameterization. When a user submits a request containing a malicious book_id value, the application fails to properly escape or validate the input before executing it against the database backend. This allows attackers to craft sql payloads that can manipulate the underlying database structure, potentially leading to unauthorized data access, data modification, or complete database compromise. The vulnerability operates at the application layer and requires no special privileges to exploit, making it particularly dangerous for web applications that rely on user input for database operations.
The operational impact of this vulnerability extends beyond simple data theft, encompassing potential complete system compromise and data integrity violations. Attackers can leverage this flaw to extract sensitive information from the database including user credentials, configuration details, and application data. The vulnerability also enables attackers to modify or delete database records, potentially causing denial of service or data corruption within the affected Joomla! installation. Given that this affects the core com_books component, it could provide attackers with a foothold for further attacks within the web application environment, particularly since many legacy joomla installations may not have been updated to address this specific vulnerability. The attack surface is significant as it affects any joomla installation running the vulnerable com_books component, making it a widespread concern for system administrators.
Mitigation strategies for CVE-2008-5643 should prioritize immediate patching and updating of affected joomla installations to the latest security releases. Organizations should implement proper input validation and sanitization measures, ensuring that all user-supplied parameters undergo rigorous filtering before being processed by the application. The implementation of prepared statements or parameterized queries should be enforced throughout the application codebase to prevent direct sql injection vulnerabilities. Additionally, network-level protections such as web application firewalls and intrusion detection systems should be deployed to monitor and block suspicious sql injection attempts. Regular security assessments and vulnerability scanning should be conducted to identify similar flaws within the application infrastructure, while access controls should be strengthened to limit database access permissions for application users. The remediation efforts should align with industry best practices outlined in the owasp top ten and mitre attack framework, particularly focusing on defensive measures against sql injection techniques that have been extensively documented in cybersecurity threat intelligence databases.