CVE-2020-4445 in Jazz Team Server
Summary
by MITRE
IBM Jazz Team Server based Applications are vulnerable to cross-site scripting. This vulnerability allows users to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session. IBM X-Force ID: 181122.
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Analysis
by VulDB Data Team • 11/12/2020
The vulnerability identified as CVE-2020-4445 affects IBM Jazz Team Server based applications, representing a critical cross-site scripting flaw that undermines web application security. This vulnerability exists within the web user interface of IBM's collaboration platform, specifically targeting the handling of user-supplied input that is subsequently rendered without proper sanitization. The flaw allows malicious actors to inject JavaScript code through web forms or URL parameters, creating persistent or reflected XSS vectors that can compromise user sessions and data integrity.
The technical implementation of this vulnerability stems from insufficient input validation and output encoding mechanisms within the IBM Jazz Team Server's web framework. When user-provided data is processed and displayed in the web interface without adequate sanitization, attackers can craft malicious payloads that execute within the context of authenticated user sessions. This particular weakness aligns with CWE-79 - Improper Neutralization of Input During Web Page Generation, which categorizes cross-site scripting vulnerabilities where input data is not properly escaped or validated before being rendered in web pages. The vulnerability's impact is amplified by the fact that it operates within a trusted session environment, meaning that successful exploitation can lead to credential theft, session hijacking, and unauthorized access to sensitive project data.
The operational implications of this vulnerability extend beyond simple script injection, as it enables attackers to manipulate the application's intended behavior and potentially escalate privileges. When users interact with maliciously crafted content, the embedded JavaScript can access session cookies, steal authentication tokens, and perform actions on behalf of legitimate users. This creates a significant risk for organizations utilizing IBM Jazz Team Server for collaborative development, as it could compromise source code repositories, project management data, and confidential business information. The vulnerability particularly affects environments where multiple developers collaborate on shared projects, as a single compromised user session could provide attackers with access to entire development workflows and sensitive intellectual property.
Organizations should implement immediate mitigations including input validation and output encoding controls, with particular attention to sanitizing all user-supplied data before rendering in web interfaces. The implementation of Content Security Policy headers can provide additional protection against XSS attacks by restricting script execution and limiting the sources from which content can be loaded. Regular security assessments and penetration testing should be conducted to identify similar vulnerabilities in web applications, while maintaining up-to-date patches from IBM addressing this specific flaw. This vulnerability demonstrates the critical importance of secure coding practices and input validation in collaborative development platforms, as highlighted by ATT&CK technique T1059.007 - Command and Scripting Interpreter: JavaScript, which emphasizes the exploitation of scripting languages in web-based attacks. Organizations should also consider implementing web application firewalls and monitoring for suspicious user behavior patterns that might indicate XSS exploitation attempts.