CVE-2009-4393 in Danp Documentdirs
Summary
by MITRE
SQL injection vulnerability in the Document Directorys (danp_documentdirs) extension 1.10.7 and earlier for TYPO3 allows remote attackers to execute arbitrary SQL commands via unspecified vectors.
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Analysis
by VulDB Data Team • 12/20/2017
The CVE-2009-4393 vulnerability represents a critical sql injection flaw within the Document Directorys extension for TYPO3 content management system. This vulnerability affects versions 1.10.7 and earlier, making it particularly concerning given the widespread adoption of TYPO3 in enterprise web environments. The flaw resides in the danp_documentdirs extension which is designed to manage document directories within TYPO3 installations, creating a potential attack surface that malicious actors can exploit to gain unauthorized access to underlying database systems.
The technical implementation of this vulnerability stems from insufficient input validation and sanitization within the extension's codebase. Attackers can manipulate unspecified input vectors to inject malicious sql commands that bypass normal security controls. This occurs when user-supplied data is directly incorporated into sql queries without proper escaping or parameterization, allowing attackers to manipulate the intended query execution flow. The vulnerability specifically affects how the extension processes requests related to document directory operations, where user input is not adequately filtered before being processed by the database engine.
The operational impact of this vulnerability extends far beyond simple data theft, as it enables complete database compromise and potential system takeover. Remote attackers can execute arbitrary sql commands with the privileges of the database user account used by TYPO3, potentially leading to data exfiltration, unauthorized modifications, or complete system compromise. In enterprise environments where TYPO3 powers critical business applications, this vulnerability could result in significant financial losses, regulatory compliance violations, and reputational damage. The remote nature of the attack means that exploitation can occur from anywhere on the internet without requiring physical access to the target system.
Mitigation strategies for this vulnerability should focus on immediate remediation through patching the affected extension to version 1.10.8 or later, which contains the necessary sql injection防护 measures. Organizations should also implement input validation controls at multiple layers including web application firewalls, database query parameterization, and regular security scanning of their TYPO3 installations. The vulnerability aligns with CWE-89 which specifically addresses sql injection flaws, and maps to ATT&CK technique T1190 for exploitation of remote services. Security teams should conduct comprehensive vulnerability assessments to identify other potentially affected extensions and ensure proper database access controls are implemented to limit the impact of successful exploitation attempts.