CVE-2019-4076 in Sterling B2B Integrator Standard Edition
Summary
by MITRE
IBM Sterling B2B Integrator Standard Edition 6.0.0.0 and 6.0.0.1 is 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: 157110.
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Analysis
by VulDB Data Team • 09/07/2023
The vulnerability identified as CVE-2019-4076 affects IBM Sterling B2B Integrator Standard Edition versions 6.0.0.0 and 6.0.0.1, representing a critical cross-site scripting flaw that undermines the security posture of enterprise integration platforms. This vulnerability resides within the web user interface components of the software, creating an attack vector that enables malicious actors to inject arbitrary JavaScript code into the application's response. The flaw stems from insufficient input validation and output encoding mechanisms that fail to properly sanitize user-supplied data before rendering it within the web interface, allowing attackers to execute malicious scripts in the context of authenticated sessions.
The technical exploitation of this vulnerability occurs when an attacker crafts malicious input that gets processed and displayed within the web application's user interface without proper sanitization. This creates a persistent cross-site scripting condition where JavaScript code becomes executable within the victim's browser context, leveraging the trust relationship between the user and the application. The vulnerability specifically impacts the web-based management console and user interface components that handle user input, making it particularly dangerous in enterprise environments where administrators and users interact with the platform through web browsers. The flaw is categorized under CWE-79 as a failure to sanitize user input, which directly enables XSS attacks through web applications.
The operational impact of CVE-2019-4076 extends beyond simple script execution, as it enables sophisticated attack patterns that can compromise user sessions and extract sensitive information. Attackers can leverage this vulnerability to steal session cookies, credentials, and other sensitive data from authenticated users within the trusted session context. The implications are severe in enterprise environments where the platform handles critical business-to-business transactions and sensitive data exchanges, as successful exploitation could lead to unauthorized access to business-critical integrations and data exposure. The vulnerability essentially provides attackers with a foothold to escalate privileges and access additional system resources through the compromised session.
Organizations should implement multiple layers of mitigation strategies to address this vulnerability effectively. Immediate remediation involves applying the vendor-provided security patches and updates to the IBM Sterling B2B Integrator platform. Network-level protections such as web application firewalls can provide additional defense-in-depth measures by filtering malicious payloads before they reach the application. Input validation and output encoding mechanisms should be strengthened throughout the application to prevent similar vulnerabilities from manifesting in other components. Security monitoring should include detection of suspicious JavaScript injection patterns in web application logs, while user education about recognizing and reporting potential phishing attempts remains crucial. The vulnerability aligns with ATT&CK technique T1059.007 for script injection and T1531 for credential access through session manipulation, emphasizing the need for comprehensive security controls across multiple attack vectors.