CVE-2016-6040 in Jazz Foundation
Summary
by MITRE
IBM Jazz Foundation could allow an authenticated user to take over a previously logged in user due to session expiration not being enforced.
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Analysis
by VulDB Data Team • 08/09/2020
The vulnerability identified as CVE-2016-6040 resides within IBM Jazz Foundation, a collaborative software development platform that serves as the foundation for various IBM Rational tools including Rational Team Concert and Rational Quality Manager. This security flaw represents a critical session management weakness that directly impacts the platform's authentication and authorization mechanisms. The vulnerability specifically affects the session expiration handling process, creating a scenario where authenticated users can potentially hijack active sessions belonging to other legitimate users within the system.
The technical root cause of this vulnerability stems from improper session expiration enforcement within the IBM Jazz Foundation framework. When users authenticate to the system, the platform establishes session tokens that should automatically expire after a predetermined period of inactivity or upon explicit logout. However, the flaw allows for session tokens to remain active and usable even after the original user has logged out or the session has logically expired. This occurs because the system fails to properly validate session state during subsequent authentication attempts or session usage, enabling unauthorized access through session replay or takeover techniques.
The operational impact of this vulnerability extends beyond simple privilege escalation, creating significant risks for organizations relying on IBM Jazz Foundation for collaborative development environments. An attacker with access to a valid session token or knowledge of an active session can potentially assume the identity of another user, gaining access to sensitive project data, code repositories, and collaborative workspaces that the legitimate user has access to. This session hijacking capability undermines the fundamental security model of the platform and can lead to data breaches, unauthorized code modifications, and compromise of intellectual property. The vulnerability is particularly dangerous in environments where multiple developers work on sensitive projects with varying access levels, as it could enable attackers to escalate privileges and access restricted resources.
This vulnerability aligns with several cybersecurity frameworks and threat modeling categories including CWE-613, which addresses insufficient session expiration, and maps to ATT&CK technique T1548.001 for Abuse of Functionality. The weakness essentially creates a persistent access vector that bypasses normal authentication controls, allowing attackers to maintain access to systems beyond their intended session duration. Organizations implementing IBM Jazz Foundation should consider this vulnerability as part of their broader application security posture, particularly in environments where the platform is used for managing sensitive source code, development artifacts, or proprietary information. The risk is amplified when considering that many development teams use these platforms for continuous integration and deployment workflows, where unauthorized access could lead to supply chain compromises or code injection attacks.
Mitigation strategies for CVE-2016-6040 should include immediate application of IBM's security patches and updates, implementation of additional session monitoring controls, and enhanced network segmentation around the Jazz Foundation servers. Organizations should also consider implementing session timeout mechanisms at the network level, deploying intrusion detection systems to monitor for suspicious session activity, and establishing regular security audits of authentication and session management components. The recommended approach involves configuring proper session expiration policies, implementing robust session invalidation procedures, and ensuring that all authentication tokens are properly validated against current session state before granting access to system resources. Additionally, organizations should conduct thorough security assessments of their development environments to identify any other applications or systems that might be vulnerable to similar session management flaws.