CVE-2009-4206 in Million Dollar Text Links
Summary
by MITRE
SQL injection vulnerability in admin.link.modify.php in Million Dollar Text Links 1.0 and earlier allows remote attackers to execute arbitrary SQL commands via the id parameter.
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Analysis
by VulDB Data Team • 11/30/2024
The vulnerability identified as CVE-2009-4206 represents a critical SQL injection flaw within the Million Dollar Text Links plugin version 1.0 and earlier. This security weakness resides in the admin.link.modify.php file, which processes user input without proper sanitization or validation. The vulnerability specifically targets the id parameter, which is used to identify and modify text links within the administrative interface. When an attacker submits malicious input through this parameter, the application fails to properly escape or filter the data before incorporating it into SQL queries, creating an avenue for unauthorized database access and manipulation.
The technical nature of this vulnerability aligns with CWE-89, which categorizes SQL injection as a fundamental weakness in application security. This flaw operates by exploiting the lack of input validation in the administrative backend, allowing attackers to inject malicious SQL code that executes with the privileges of the database user. The impact extends beyond simple data theft, as successful exploitation can lead to complete database compromise, data modification, or even system compromise if the database user has elevated privileges. The vulnerability demonstrates poor input handling practices and highlights the critical importance of implementing proper parameterized queries or prepared statements to prevent such attacks.
Operationally, this vulnerability poses significant risks to websites utilizing the Million Dollar Text Links plugin, particularly those with administrative interfaces that process user-supplied data. Attackers can leverage this flaw to bypass authentication mechanisms, extract sensitive information from the database, modify or delete content, and potentially escalate privileges within the application. The remote nature of the attack means that exploitation does not require physical access to the system, making it particularly dangerous for web applications. The vulnerability affects all versions up to and including 1.0, indicating a long-standing security issue that was not properly addressed in the plugin's development lifecycle, and represents a failure in security testing and code review processes.
Organizations affected by this vulnerability should implement immediate mitigations including patching to the latest version of the plugin where the vulnerability has been addressed. The recommended approach involves upgrading to a version that properly sanitizes input parameters and implements secure coding practices. Additionally, administrators should consider implementing web application firewalls that can detect and block SQL injection attempts, though this represents a reactive measure rather than a permanent fix. Security monitoring should be enhanced to detect unusual database access patterns that might indicate exploitation attempts, and input validation should be strengthened across all administrative interfaces. The vulnerability underscores the necessity of following secure coding guidelines such as those outlined in the OWASP Top Ten and emphasizes the importance of regular security assessments and code reviews to prevent similar issues from emerging in the future.