CVE-2009-2782 in Com Jfusion
Summary
by MITRE
SQL injection vulnerability in the JFusion (com_jfusion) component for Joomla! allows remote attackers to execute arbitrary SQL commands via the Itemid parameter to index.php.
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Analysis
by VulDB Data Team • 12/07/2024
The CVE-2009-2782 vulnerability represents a critical sql injection flaw within the jfusion component for joomla cms platforms. This vulnerability specifically targets the com_jfusion component which facilitates integration between joomla and other php applications. The flaw manifests when the application fails to properly sanitize user input passed through the Itemid parameter in the index.php script. Attackers can exploit this weakness by crafting malicious sql commands that get executed within the database context of the vulnerable joomla installation. The vulnerability exists due to inadequate input validation and parameter handling within the jfusion component's processing logic, allowing unauthorized sql command execution without proper authentication or authorization.
The technical exploitation of this vulnerability occurs through manipulation of the Itemid parameter which serves as a crucial identifier for menu items within joomla's routing system. When the jfusion component processes this parameter, it directly incorporates user-supplied values into sql queries without proper sanitization or parameter binding mechanisms. This primitive approach to input handling creates an ideal environment for sql injection attacks where malicious payloads can bypass normal security controls. The vulnerability maps directly to cwe-89 which specifically addresses improper neutralization of special elements used in sql commands, and aligns with attack techniques documented in the attack pattern taxonomy under sql injection categories. The flaw demonstrates a classic lack of input validation and output encoding practices that are fundamental to preventing sql injection attacks.
The operational impact of CVE-2009-2782 extends beyond simple data theft to encompass complete system compromise and unauthorized access to sensitive information. Remote attackers can leverage this vulnerability to extract database contents including user credentials, session information, and application configuration data. The attack surface includes not only the joomla installation itself but potentially other integrated systems if the jfusion component connects to external databases or applications. Successful exploitation allows attackers to modify or delete database records, create new administrative accounts, and establish persistent access points within the compromised environment. This vulnerability particularly affects organizations using older joomla versions that have not received security patches, as the flaw represents a known weakness that was addressed in subsequent releases. The attack vector requires minimal privileges and can be automated, making it attractive to both automated scanning tools and targeted attackers seeking to compromise web applications.
Mitigation strategies for CVE-2009-2782 focus on immediate remediation through software updates and input validation improvements. Organizations should immediately upgrade to patched versions of joomla and the jfusion component to address the vulnerability. Implementing proper parameter binding and input sanitization within the jfusion component would prevent the exploitation of this flaw. Additionally, network-level protections including web application firewalls and intrusion detection systems can help detect and block malicious sql injection attempts targeting this specific vulnerability. Security administrators should also implement database access controls and monitoring to detect unauthorized sql command execution. The vulnerability highlights the importance of following secure coding practices and adhering to established security standards such as owasp top ten and the cwe guidelines for preventing sql injection attacks. Regular security audits and vulnerability assessments should include checks for similar input validation flaws across all web application components to prevent similar issues from occurring in other parts of the system infrastructure.