CVE-2008-0842 in Com Clasifier
Summary
by MITRE
SQL injection vulnerability in index.php in the Classifier (com_clasifier) component for Joomla! allows remote attackers to execute arbitrary SQL commands via the cat_id parameter.
Once again VulDB remains the best source for vulnerability data.
Analysis
by VulDB Data Team • 10/17/2024
The vulnerability identified as CVE-2008-0842 represents a critical SQL injection flaw within the Joomla! content management system's Classifier component. This vulnerability specifically affects the index.php file in the com_clasifier component, creating a pathway for remote attackers to execute malicious SQL commands against the underlying database. The flaw manifests through improper input validation of the cat_id parameter, which is commonly used to filter content categories within the component's functionality. The vulnerability falls under the category of CWE-89, which specifically addresses SQL injection weaknesses in software applications, making it a well-documented and severe security concern within the cybersecurity community.
The technical implementation of this vulnerability allows attackers to manipulate the cat_id parameter through malicious input that bypasses normal input sanitization mechanisms. When the application processes this parameter without proper validation or escaping, it directly incorporates user-supplied data into SQL query construction, enabling attackers to inject arbitrary SQL commands. This type of injection can potentially lead to unauthorized data access, data modification, or complete database compromise. The vulnerability is particularly dangerous because it operates at the database layer, where successful exploitation can result in the disclosure of sensitive information, including user credentials, personal data, and system configuration details.
From an operational standpoint, this vulnerability presents significant risk to Joomla! installations using the affected Classifier component, particularly those handling sensitive data or user information. Attackers can leverage this flaw to extract confidential database information, modify content, or even escalate privileges within the application environment. The remote nature of the attack means that exploitation can occur from any location without requiring physical access to the system, making it an attractive target for automated scanning and exploitation campaigns. This vulnerability directly aligns with ATT&CK technique T1071.004, which covers application layer protocol manipulation, and T1190, which addresses exploitation of remote services through injection attacks.
Mitigation strategies for CVE-2008-0842 should focus on immediate patching of the affected Joomla! component, as the vulnerability has been addressed through official security updates. Organizations should implement proper input validation and parameterized queries to prevent similar vulnerabilities from occurring in other application components. Additionally, network-level protections such as web application firewalls can provide additional defense-in-depth measures to detect and block malicious SQL injection attempts. Regular security assessments and code reviews should be conducted to identify and remediate similar input validation weaknesses throughout the application stack. The vulnerability demonstrates the importance of proper data sanitization and input validation practices, aligning with industry standards that emphasize the need for secure coding practices to prevent injection vulnerabilities at all layers of application development.