CVE-2012-4731 in RTFM
Summary
by MITRE
FAQ manager for Request Tracker (RTFM) before 2.4.5 does not properly check user rights, which allows remote authenticated users to create arbitrary articles in arbitrary classes via unknown vectors.
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Analysis
by VulDB Data Team • 12/19/2021
The vulnerability identified as CVE-2012-4731 affects the Request Tracker FAQ manager component, commonly known as RTFM, which is a web-based knowledge base system integrated with the Request Tracker ticketing platform. This flaw exists in versions prior to 2.4.5 and represents a significant access control weakness that undermines the security model of the application. The vulnerability stems from insufficient authorization checks within the RTFM module, creating a path for malicious actors to bypass normal user permission controls and gain unauthorized access to administrative functions. The issue manifests as a privilege escalation vulnerability that allows authenticated users to perform actions they should not be authorized to execute, fundamentally compromising the integrity of the access control mechanisms.
The technical implementation of this vulnerability involves a failure in the user rights validation process within the RTFM component. When authenticated users interact with the FAQ management interface, the system does not adequately verify whether the requesting user possesses the necessary privileges to create articles in specific categories or classes. This authentication bypass occurs through unspecified vectors that likely involve manipulation of request parameters or session data that should normally be validated before executing administrative operations. The vulnerability is classified as a weakness in authorization controls, aligning with CWE-285 which addresses improper authorization issues in software systems. Attackers can exploit this flaw by crafting specific requests that appear to originate from authorized users but contain manipulated parameters that grant access to restricted functionality.
The operational impact of CVE-2012-4731 extends beyond simple unauthorized access, as it enables malicious actors to inject arbitrary content into the knowledge base system. This capability allows attackers to create articles in any class or category within the RTFM system, potentially leading to information disclosure, data corruption, or the injection of malicious content that could affect other users. The vulnerability particularly affects organizations that rely on RTFM for storing sensitive documentation, technical knowledge, or internal procedures, as unauthorized modifications could compromise the reliability and accuracy of critical information. From an attacker's perspective, this vulnerability provides a persistent foothold within the system that could be leveraged for further exploitation or as a staging ground for more sophisticated attacks. The impact is further amplified because the vulnerability requires only authenticated access, meaning that attackers who can obtain legitimate user credentials can exploit this flaw without requiring additional privileges.
Organizations should implement immediate mitigations including upgrading to RTFM version 2.4.5 or later, which contains the necessary patches to address the authorization bypass. Security teams should also review and audit existing user permissions to ensure that access controls are properly configured and that only authorized personnel have the ability to create or modify content in critical knowledge base categories. Network monitoring should be enhanced to detect anomalous behavior patterns that might indicate exploitation attempts, particularly around the RTFM module. The vulnerability demonstrates the importance of proper input validation and authorization checking in web applications, aligning with ATT&CK technique T1078 which covers valid accounts and privilege escalation. Additional defensive measures include implementing web application firewalls to monitor for suspicious parameter manipulation and conducting regular security assessments of integrated systems to identify similar authorization weaknesses. The incident underscores the critical need for comprehensive access control validation throughout application components, as even seemingly minor flaws in permission systems can create significant security risks that compromise entire information systems.