CVE-2009-3334 in Com Jinc
Summary
by MITRE
SQL injection vulnerability in the Lhacky! Extensions Cave Joomla! Integrated Newsletters Component (aka JINC or com_jinc) component 0.2 for Joomla! allows remote attackers to execute arbitrary SQL commands via the newsid parameter in a messages action to index.php.
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Analysis
by VulDB Data Team • 12/15/2024
The vulnerability identified as CVE-2009-3334 represents a critical sql injection flaw within the Lhacky Integrated Newsletters Component, commonly known as JINC or com_jinc version 0.2. This component is designed to manage newsletter subscriptions and content delivery within the Joomla
installations. The vulnerability specifically affects the component's handling of user input parameters, creating a pathway for malicious actors to manipulate database queries through crafted input.
The technical exploitation occurs through the newsid parameter within the messages action of the index.php script. When this parameter is processed without proper input validation or sanitization, attackers can inject malicious sql code that gets executed by the underlying database. This unfiltered parameter processing directly violates established security principles and creates a direct vector for arbitrary code execution. The flaw falls under the common weakness enumeration CWE-89 which specifically addresses sql injection vulnerabilities where untrusted data is incorporated into sql queries without proper escaping or parameterization. The vulnerability demonstrates poor input validation practices and inadequate data sanitization mechanisms that are fundamental requirements for preventing sql injection attacks.
The operational impact of this vulnerability is severe as it allows remote attackers to execute arbitrary sql commands against the affected Joomla installations, this could lead to unauthorized access to user credentials, content manipulation, and potential compromise of the entire web application. The attack surface is particularly concerning because it affects the newsletter component which may contain sensitive subscriber information and administrative data, making it attractive for both data theft and system compromise operations.
Mitigation strategies for CVE-2009-3334 should focus on immediate patching of the vulnerable JINC component to version 0.2 or later, which would contain proper input validation and sanitization mechanisms. Organizations should implement proper parameterized queries and prepared statements to prevent sql injection, ensuring that all user input is properly escaped or validated before database interaction. The principle of least privilege should be enforced by limiting database permissions for the web application, restricting access to only necessary database operations. Network-level protections such as web application firewalls and intrusion detection systems can provide additional layers of defense, while regular security audits and input validation testing should be conducted to identify similar vulnerabilities. This vulnerability also aligns with attack techniques documented in the attack pattern taxonomy under the category of sql injection attacks, where attackers leverage improper input handling to achieve unauthorized database access.