CVE-2008-4897 in Logz
Summary
by MITRE
SQL injection vulnerability in fichiers/add_url.php in Logz podcast CMS 1.3.1, when magic_quotes_gpc is disabled, allows remote attackers to execute arbitrary SQL commands via the art parameter.
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Analysis
by VulDB Data Team • 11/09/2024
The vulnerability identified as CVE-2008-4897 represents a critical sql injection flaw within the Logz podcast content management system version 1.3.1. This vulnerability specifically affects the fichiers/add_url.php script and exploits a fundamental weakness in input validation mechanisms. The flaw manifests when the php configuration directive magic_quotes_gpc is disabled, which removes the automatic escaping of special characters in GET, POST, and COOKIE data. This condition creates an exploitable entry point where malicious actors can inject arbitrary sql commands directly into the application's database layer through the art parameter. The vulnerability falls under the CWE-89 category of sql injection, which is classified as a high-risk vulnerability in the cwe dictionary due to its potential for complete system compromise. According to the mitre ATT&CK framework, this vulnerability maps to the technique T1190 - exploit public-facing application, as it targets a web-facing component that can be accessed remotely without authentication.
The technical implementation of this vulnerability occurs when user input from the art parameter is directly concatenated into sql query strings without proper sanitization or parameterization. When magic_quotes_gpc is disabled, the application fails to automatically escape single quotes, double quotes, and other special sql characters that could alter the intended query structure. Attackers can exploit this by crafting malicious input that includes sql payload sequences such as union select, or other sql command terminators that bypass normal input validation. The vulnerability is particularly dangerous because it allows for complete database access and manipulation, potentially enabling attackers to extract sensitive information, modify or delete data, and in some cases escalate privileges to gain shell access on the underlying server. The exploitation process typically involves sending specially crafted http requests to the vulnerable add_url.php endpoint with malicious values in the art parameter, which then gets executed as part of the sql statement without proper sanitization.
The operational impact of this vulnerability extends beyond simple data theft, as it provides attackers with the capability to fully compromise the podcast cms system. Successful exploitation could result in complete database takeover, allowing unauthorized users to view, modify, or delete all podcast content, user accounts, and system configurations. The vulnerability also poses risks to the underlying server infrastructure, as attackers might leverage the sql injection to execute operating system commands or establish persistent backdoors. Organizations using Logz podcast cms version 1.3.1 without proper input validation measures face significant risk of data breaches, service disruption, and potential regulatory compliance violations. The vulnerability affects systems where the magic_quotes_gpc setting is explicitly disabled, which is common in modern php configurations where this deprecated feature has been removed or disabled for security reasons. This makes the vulnerability particularly concerning for legacy systems that have not been properly updated or patched.
Mitigation strategies for CVE-2008-4897 require immediate implementation of multiple security controls to protect against sql injection attacks. The primary defense mechanism involves implementing proper input validation and sanitization techniques, including the use of prepared statements and parameterized queries to ensure that user input cannot alter the intended sql structure. Organizations should disable magic_quotes_gpc in php configurations and implement robust input filtering mechanisms that validate and sanitize all user-supplied data before processing. Additionally, web application firewalls should be deployed to detect and block suspicious sql injection patterns in real-time. The system should also implement proper access controls and least privilege principles to limit the potential damage from successful exploitation attempts. Regular security audits and code reviews should be conducted to identify similar vulnerabilities in other components of the application. Updates to the Logz podcast cms to newer versions that have addressed this vulnerability should be prioritized, as version 1.3.1 represents an outdated release that lacks modern security protections. The implementation of database activity monitoring and intrusion detection systems can provide additional layers of defense by alerting administrators to suspicious database access patterns that may indicate exploitation attempts.