CVE-2008-6693 in Sb Downloader
Summary
by MITRE
SQL injection vulnerability in Download system (sb_downloader) extension 0.1.4 and earlier for TYPO3 allows remote attackers to execute arbitrary SQL commands via unknown vectors.
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Analysis
by VulDB Data Team • 12/14/2017
The CVE-2008-6693 vulnerability represents a critical sql injection flaw within the sb_downloader extension for TYPO3 content management system. This vulnerability affects versions 0.1.4 and earlier, creating a significant security risk for organizations utilizing TYPO3 platforms. The flaw resides in the download system component that handles file retrieval and management functions, where improper input validation allows malicious actors to inject arbitrary sql commands into the database layer. The vulnerability's impact extends beyond simple data theft as it enables full database compromise and potential system takeover.
The technical implementation of this vulnerability stems from insufficient sanitization of user-supplied input parameters within the sb_downloader extension. Attackers can exploit this weakness by crafting malicious sql payloads that bypass normal input validation mechanisms, allowing them to manipulate database queries directly. The unknown vectors mentioned in the description suggest that the vulnerability may manifest through multiple entry points within the extension's codebase, including but not limited to file parameter handling, user session management, or administrative interface components. This lack of specificity in attack vectors makes the vulnerability particularly dangerous as it can be exploited through various means without requiring deep knowledge of the exact implementation details.
From an operational perspective, this vulnerability poses severe risks to organizations relying on TYPO3 for their web presence. Remote attackers can execute unauthorized database operations including data extraction, modification, or deletion of critical system information. The implications extend to potential privilege escalation, where attackers might gain administrative access to the TYPO3 system, leading to complete compromise of the web application and underlying database infrastructure. Additionally, the vulnerability could enable attackers to establish persistent backdoors or deploy malicious code within the web application environment, creating long-term security threats.
Security professionals should consider this vulnerability in the context of CWE-89 which specifically addresses sql injection weaknesses in software systems. The attack patterns associated with this vulnerability align with ATT&CK technique T1190 for exploit public-facing application, and T1071.004 for application layer protocol. Organizations should immediately implement mitigations including upgrading to patched versions of the sb_downloader extension, implementing proper input validation and parameterized queries, and conducting comprehensive security assessments of all TYPO3 extensions. Network-based mitigations such as web application firewalls and database access controls should also be deployed to limit potential exploitation vectors and reduce the attack surface. Regular security monitoring and vulnerability scanning should be maintained to identify similar weaknesses in other components of the web application stack.