CVE-2007-4650 in Bharat Mediratta
Summary
by MITRE
Multiple unspecified vulnerabilities in Gallery before 2.2.3 allow attackers to (1) rename items, (2) read and modify item properties, or (3) lock and replace items via unknown vectors in (a) the WebDAV module; and (4) edit unspecified data files using "linked items" in WebDAV and (b) Reupload modules.
Be aware that VulDB is the high quality source for vulnerability data.
Analysis
by VulDB Data Team • 07/29/2019
The vulnerability identified as CVE-2007-4650 represents a critical security flaw in the Gallery web-based photo management system prior to version 2.2.3. This vulnerability spans multiple attack vectors within the application's WebDAV module and related reupload functionality, creating a comprehensive security breach that could allow unauthorized users to manipulate digital media content in ways that compromise both data integrity and system confidentiality. The unspecified nature of the exact attack vectors makes this vulnerability particularly dangerous as it could potentially be exploited through various methods that security teams may not have anticipated.
The technical flaw manifests through weaknesses in the WebDAV module implementation, where attackers can exploit unknown vectors to perform unauthorized operations on gallery items. These operations include renaming items which can alter the metadata and potentially confuse users about the actual content, reading and modifying item properties that may contain sensitive information or access controls, and locking and replacing items which can result in permanent data loss or manipulation. The vulnerability extends beyond basic file operations to include manipulation of linked items within the WebDAV framework, allowing attackers to potentially compromise the entire content management system through indirect means.
The operational impact of this vulnerability is severe and multifaceted, as it provides attackers with multiple pathways to compromise the gallery system. The ability to rename items creates confusion and potential misinformation within the gallery, while read and modify operations on item properties can expose sensitive metadata or access control information. Locking and replacing items can result in data corruption or complete loss of content, while the linked items functionality in WebDAV and reupload modules creates additional attack surface that could be leveraged for more sophisticated attacks. This vulnerability essentially undermines the fundamental trust in the gallery system's integrity and access controls.
Mitigation strategies for CVE-2007-4650 should focus on immediate application updates to version 2.2.3 or later, which would address the identified vulnerabilities in the WebDAV module and reupload functionality. Organizations should also implement comprehensive access controls and audit logging to monitor for unauthorized item modifications, ensuring that any suspicious activity related to item renaming, property modifications, or replacement operations is immediately detected and investigated. Additionally, security teams should conduct thorough vulnerability assessments of the gallery system to identify any other potential attack vectors that may be related to the underlying WebDAV implementation. This vulnerability aligns with CWE-284 (Improper Access Control) and could be categorized under ATT&CK techniques related to privilege escalation and data manipulation, emphasizing the need for robust access control mechanisms and proper input validation throughout the application's WebDAV integration points.