CVE-2016-5892 in B2B Advanced Communications
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in IBM 10x, as used in Multi-Enterprise Integration Gateway 1.x through 1.0.0.1 and B2B Advanced Communications before 1.0.0.5_2, allows remote authenticated users to inject arbitrary web script or HTML via unspecified vectors.
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Analysis
by VulDB Data Team • 05/03/2019
The vulnerability identified as CVE-2016-5892 represents a critical cross-site scripting flaw within IBM 10x components that were integrated into Multi-Enterprise Integration Gateway 1.x versions through 1.0.0.1 and B2B Advanced Communications prior to version 1.0.0.5_2. This security weakness resides in the web application framework that processes user input without proper sanitization mechanisms, creating an avenue for malicious actors to execute arbitrary scripts within the context of other users' browsers. The flaw specifically affects systems where IBM 10x serves as the underlying web application platform for enterprise integration and business-to-business communications. The vulnerability classification aligns with CWE-79, which defines cross-site scripting as a weakness that occurs when an application incorporates untrusted data into web pages without proper validation or encoding, allowing attackers to inject malicious scripts that execute in the victim's browser context.
The technical exploitation of this vulnerability requires remote authenticated access, meaning that an attacker must first establish valid credentials to access the affected system. Once authenticated, the malicious user can leverage the XSS flaw through unspecified vectors that likely involve input fields or parameters within the web interface that do not properly validate or sanitize user-supplied data. The attack typically involves crafting malicious input that contains script code, which then gets executed when other users view the affected content. This could manifest through various attack vectors including form submissions, URL parameters, or even file uploads that are processed by the IBM 10x framework. The vulnerability's impact extends beyond simple script execution, as it could potentially enable session hijacking, credential theft, or redirection to malicious websites that further compromise user sessions and system integrity.
The operational impact of CVE-2016-5892 within enterprise environments is significant, particularly in organizations that rely heavily on Multi-Enterprise Integration Gateway for critical business processes and B2B communications. An attacker who successfully exploits this vulnerability could potentially access sensitive business data, manipulate integration workflows, or gain unauthorized access to other system resources that are accessible to authenticated users. The vulnerability affects not only the web interface but also the underlying integration capabilities that connect multiple enterprise systems, potentially allowing attackers to move laterally within the network or escalate privileges. Organizations using these affected versions face risks of data breaches, service disruption, and potential compliance violations, especially in regulated industries where data protection and privacy are paramount. The attack surface is particularly concerning in multi-tenant environments where a single compromised user could potentially affect multiple organizations sharing the same integration gateway infrastructure.
Mitigation strategies for CVE-2016-5892 should prioritize immediate patching of affected systems to the latest available versions of IBM 10x, Multi-Enterprise Integration Gateway, and B2B Advanced Communications. Organizations should implement comprehensive input validation and output encoding mechanisms across all web applications, ensuring that all user-supplied data is properly sanitized before being processed or displayed. Network segmentation and access controls should be enforced to limit the potential impact of successful exploitation, particularly restricting administrative access to critical systems. Security monitoring should be enhanced to detect anomalous user behavior patterns that might indicate exploitation attempts, including unusual data submissions or access to sensitive system components. Additionally, organizations should conduct regular security assessments and penetration testing to identify similar vulnerabilities within their broader technology stack, while implementing security awareness training for administrators and users to recognize potential social engineering attacks that might exploit this vulnerability. The remediation process should also include reviewing and updating security policies to ensure proper authentication controls and session management practices are in place to prevent unauthorized access to the affected systems.