CVE-2020-4522 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: 182397.
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Analysis
by VulDB Data Team • 11/12/2020
The vulnerability identified as CVE-2020-4522 affects IBM Jazz Team Server based applications, representing a critical cross-site scripting flaw that compromises web application security. This vulnerability resides within the web user interface of IBM's collaboration platform, which is widely used for software development lifecycle management and team collaboration. The affected systems operate on the Jazz platform architecture that provides integrated tools for requirements management, change management, and continuous integration processes. Organizations utilizing these server-based applications face significant risks due to the nature of the vulnerability and its potential impact on sensitive data and system integrity.
The technical flaw manifests as a failure to properly sanitize user input within the web interface components of the Jazz Team Server applications. When users interact with the web UI, the system does not adequately validate or escape dynamic content before rendering it in the browser context. This validation gap allows malicious actors to inject JavaScript code through various input fields or parameters that are subsequently executed in the context of authenticated users' browsers. The vulnerability specifically targets the rendering mechanisms that process user-generated content, enabling attackers to manipulate the application's intended behavior through malicious script injection. This flaw operates at the application layer where user input flows directly into HTML output without appropriate sanitization measures.
The operational impact of this vulnerability extends beyond simple script execution, creating potential pathways for credential theft and session hijacking within trusted environments. When authenticated users browse to pages containing maliciously injected JavaScript, the code executes in their browser context with their privileges, potentially allowing attackers to access session cookies, form data, or other sensitive information. The vulnerability particularly threatens organizations using the Jazz Team Server for development collaboration, as attackers could exploit this weakness to gain access to source code repositories, project documentation, or other confidential development artifacts. The attack surface is broad since the vulnerability affects multiple components within the Jazz platform, including work item tracking, build management, and team collaboration features.
Organizations should implement comprehensive mitigation strategies to address this vulnerability, beginning with immediate patching of affected IBM Jazz Team Server installations. The mitigation approach must include input validation and output encoding mechanisms to prevent JavaScript injection in all user-facing components. Security teams should deploy web application firewalls that can detect and block malicious script patterns, while also implementing content security policies to restrict script execution within browser contexts. Additionally, organizations should conduct thorough security assessments of their Jazz Team Server deployments to identify any custom applications or extensions that may also be vulnerable. Regular monitoring of user sessions and implementation of multi-factor authentication can provide additional layers of protection against exploitation attempts. This vulnerability aligns with CWE-79, which describes cross-site scripting flaws, and represents a significant concern for organizations following ATT&CK framework's initial access and credential access phases where adversaries seek to establish persistent access through web-based attack vectors.