CVE-2006-4042 in myBloggie
Summary
by MITRE
Multiple SQL injection vulnerabilities in trackback.php in myWebland myBloggie 2.1.4 and earlier allow remote attackers to execute arbitrary SQL commands via the (1) title, (2) url, (3) excerpt, or (4) blog_name parameters.
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Analysis
by VulDB Data Team • 07/11/2024
The vulnerability identified as CVE-2006-4042 represents a critical SQL injection flaw discovered in the trackback.php component of myWebland myBloggie version 2.1.4 and earlier. This vulnerability resides within a web application framework designed for blog management and content publishing, making it particularly dangerous as it affects the core functionality of user-generated content handling through trackback mechanisms. The flaw enables malicious actors to manipulate database queries by injecting malicious SQL code through specific input parameters, fundamentally compromising the integrity and security of the underlying database system. The vulnerability specifically targets four distinct parameters including title, url, excerpt, and blog_name, all of which are commonly used in trackback submissions that allow other blogs to notify the original blog of links or references.
The technical implementation of this vulnerability stems from inadequate input validation and sanitization within the trackback.php script. When users submit trackback information to a blog, the application processes the submitted data without proper escaping or parameterization of SQL queries. This allows attackers to inject malicious SQL fragments that get executed within the database context, potentially leading to unauthorized data access, modification, or deletion. The vulnerability aligns with CWE-89 which specifically addresses SQL injection flaws, where improper handling of user-supplied data in database queries creates opportunities for attackers to manipulate database operations. The attack vector leverages the standard HTTP request parameters that are typically passed to the trackback endpoint, making exploitation relatively straightforward for threat actors who understand basic SQL injection techniques.
The operational impact of this vulnerability extends beyond simple data theft or corruption, as it provides attackers with elevated privileges within the database environment. Successful exploitation could enable attackers to extract sensitive information including user credentials, personal data, and administrative access details stored within the same database. The vulnerability also poses risks of data manipulation where attackers could alter blog content, modify user permissions, or even delete entire sections of the website. From a threat modeling perspective, this vulnerability maps to ATT&CK technique T1071.004 which covers application layer protocol manipulation, and T1190 which addresses exploitation of remote services. The broad parameter scope increases the attack surface, as any of the four vulnerable fields can be exploited, providing multiple entry points for potential attackers to compromise the system.
Mitigation strategies for CVE-2006-4042 must address both immediate remediation and long-term security improvements. The primary fix involves implementing proper input validation and parameterized queries throughout the trackback.php script, ensuring that all user-supplied data undergoes rigorous sanitization before database interaction. Organizations should implement prepared statements or parameterized queries to prevent SQL injection attacks, which directly addresses the root cause of the vulnerability. Additionally, the affected myBloggie versions should be immediately updated to patched releases or upgraded to newer versions that have implemented proper security controls. Network-level protections such as web application firewalls can provide additional defense-in-depth measures, though they should not replace proper code-level fixes. Regular security audits and input validation testing should be implemented to prevent similar vulnerabilities from emerging in other components of the application. The vulnerability also highlights the importance of secure coding practices and input validation as fundamental security controls that should be implemented across all web application components rather than addressed only after exploitation occurs.