CVE-2008-3503 in Plain Black WebGUI
Summary
by MITRE
RSSFromParent in Plain Black WebGUI before 7.5.13 does not restrict view access to Collaboration System (CS) RSS feeds, which allows remote attackers to obtain sensitive information (CS data).
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Analysis
by VulDB Data Team • 11/22/2017
The vulnerability identified as CVE-2008-3503 affects Plain Black WebGUI versions prior to 7.5.13 and specifically targets the RSSFromParent component within the Collaboration System. This flaw represents a critical access control weakness that undermines the security boundaries of the web application's information dissemination mechanisms. The vulnerability stems from inadequate input validation and authorization checks within the RSS feed generation process, allowing unauthorized remote actors to bypass normal access restrictions and retrieve sensitive collaboration system data through RSS feed endpoints.
The technical implementation of this vulnerability resides in the RSSFromParent functionality which fails to properly validate user permissions before exposing collaboration system data through rss feeds. This represents a classic case of insufficient authorization checking where the system assumes that rss feed requests are legitimate without verifying whether the requesting entity has appropriate clearance levels to access the underlying collaboration system information. The flaw essentially creates an information disclosure pathway through which remote attackers can harvest sensitive data that should only be accessible to authorized users within the collaboration environment. This vulnerability directly maps to CWE-285 which addresses insufficient authorization issues in information systems, and aligns with ATT&CK technique T1213.002 related to data from information repositories.
The operational impact of this vulnerability extends beyond simple information disclosure to potentially compromise the integrity and confidentiality of collaboration system data. Remote attackers can exploit this weakness to gather sensitive information including project details, user communications, document metadata, and other collaboration system artifacts that may contain intellectual property, business strategies, or personal information. The attack vector is particularly concerning as it requires no authentication credentials to exploit, making it accessible to any remote party with network access to the affected system. This vulnerability effectively undermines the security model of the collaboration system by allowing unauthorized access to data that should remain protected within controlled access environments.
Organizations affected by this vulnerability should immediately implement the available patch updates for Plain Black WebGUI version 7.5.13 or later, which address the authorization bypass in the RSS feed generation component. Additionally, network administrators should consider implementing temporary network-level restrictions that limit access to rss feed endpoints until the official patch can be deployed. Security monitoring should be enhanced to detect unusual patterns of rss feed access that may indicate exploitation attempts. The remediation process should include verification that all collaboration system data is properly protected through appropriate access controls and that no unauthorized data exposure pathways exist within the application's information flow architecture. Organizations should also conduct thorough security assessments of their collaboration system components to identify similar authorization weaknesses that may exist in other parts of their information infrastructure.