CVE-2008-6630 in Wt Gallery
Summary
by MITRE
Directory traversal vulnerability in the wt_gallery extension 2.5.0 and earlier for TYPO3 allows remote attackers to read arbitrary image files and determine directory structure via unspecified vectors.
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Analysis
by VulDB Data Team • 12/08/2017
The CVE-2008-6630 vulnerability represents a critical directory traversal flaw within the wt_gallery extension version 2.5.0 and earlier for the TYPO3 content management system. This vulnerability exposes the underlying file system structure to remote attackers who can exploit it to access arbitrary image files and discover directory layouts. The flaw exists in the extension's handling of file paths and user input, creating an opportunity for unauthorized access to sensitive media resources stored on the server. Directory traversal vulnerabilities of this nature are particularly dangerous because they can enable attackers to bypass normal access controls and retrieve files that should remain protected within the application's restricted directories.
The technical implementation of this vulnerability stems from inadequate input validation and path sanitization within the wt_gallery extension's file handling mechanisms. Attackers can manipulate input parameters to navigate through the file system hierarchy and access files outside of the intended directory boundaries. This typically occurs when user-supplied data is directly incorporated into file path construction without proper sanitization or validation. The vulnerability allows for arbitrary file reading, meaning an attacker can potentially access not only image files but also configuration files, log files, and other sensitive data stored on the server. The unspecified vectors mentioned in the description suggest that the attack surface may be broader than initially apparent, potentially affecting multiple input points within the extension's functionality.
From an operational perspective, this vulnerability poses significant risks to organizations using TYPO3 with the affected wt_gallery extension. Remote attackers can exploit this flaw to obtain sensitive information about the server's directory structure, potentially identifying other vulnerable applications or services running on the same host. The ability to read arbitrary image files could expose copyrighted material, internal documentation, or other confidential visual assets. Additionally, attackers might use this vulnerability as a stepping stone for further exploitation, potentially gaining access to other system components or using the discovered information for more sophisticated attacks. The impact extends beyond immediate data theft to include potential system compromise and regulatory compliance violations.
Organizations should implement immediate mitigation strategies including updating to the latest version of the wt_gallery extension where the vulnerability has been patched, applying the official security patches released by the TYPO3 community, and implementing proper input validation controls. Network segmentation and access controls should be reviewed to limit exposure, while monitoring systems should be configured to detect unusual file access patterns. The vulnerability aligns with CWE-22 Directory Traversal and follows patterns consistent with attack techniques documented in the MITRE ATT&CK framework under the T1083 technique for discovering system information. Regular security assessments and vulnerability scanning should be conducted to identify similar issues in other extensions and components, as directory traversal vulnerabilities often indicate broader architectural weaknesses in input handling and access control mechanisms.