CVE-2016-5398 in JBoss BPM Suite
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in Business Process Editor in Red Hat JBoss BPM Suite before 6.3.3 allows remote authenticated users to inject arbitrary web script or HTML by levering permission to create business processes.
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Analysis
by VulDB Data Team • 09/22/2022
The vulnerability identified as CVE-2016-5398 represents a critical cross-site scripting flaw within the Business Process Editor component of Red Hat JBoss BPM Suite versions prior to 6.3.3. This security weakness specifically targets the web application's input validation mechanisms, creating an avenue for malicious actors to execute arbitrary web scripts or HTML code within the context of authenticated user sessions. The vulnerability manifests due to insufficient sanitization of user-supplied input data that flows into the business process creation functionality, which operates under the assumption that all user inputs are benign and properly formatted.
The technical exploitation of this vulnerability requires an authenticated user with sufficient permissions to create or modify business processes within the JBoss BPM Suite environment. This permission model creates a significant attack surface since the malicious user can leverage their legitimate access rights to inject malicious code into process definitions that are subsequently rendered in web interfaces. The flaw falls under CWE-79, which specifically addresses Cross-Site Scripting vulnerabilities in web applications, where improper validation or sanitization of user-supplied data allows attackers to inject executable scripts into web pages viewed by other users. The Business Process Editor component processes user inputs without adequate filtering or encoding, allowing attackers to embed malicious payloads that can execute in the browser context of other users who view or interact with the affected process definitions.
The operational impact of this vulnerability extends beyond simple script injection, as it enables attackers to potentially escalate privileges, steal session cookies, perform unauthorized actions on behalf of victims, or redirect users to malicious websites. When business process definitions are viewed by other authenticated users, the injected scripts execute in their browsers, creating a persistent threat vector that can compromise multiple users within the organization. The vulnerability particularly affects enterprise environments where business process editors are frequently accessed by multiple users, as a single compromised process definition can serve as a vector for widespread attack. From an attack framework perspective, this vulnerability aligns with ATT&CK technique T1059.007 for Command and Scripting Interpreter: JavaScript, and represents a classic server-side web application attack that can be leveraged for post-exploitation activities within the target environment.
Organizations should implement immediate mitigations including upgrading to Red Hat JBoss BPM Suite version 6.3.3 or later, which contains the necessary patches to address the input validation issues. Additionally, administrators should enforce strict input validation policies and implement proper output encoding mechanisms within the Business Process Editor component to prevent malicious data from being rendered as executable content. Security teams should also consider implementing web application firewalls with XSS detection capabilities and conduct regular security assessments of business process management systems to identify similar vulnerabilities in other components of the suite. The vulnerability demonstrates the importance of maintaining up-to-date security patches and implementing defense-in-depth strategies that protect against both known and emerging threats within enterprise business process management platforms.