CVE-2019-4258 in Sterling B2B Integrator
Summary
by MITRE
IBM Sterling B2B Integrator 6.0.0.0 and 6.0.0.1 Standard Edition 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: 159946.
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Analysis
by VulDB Data Team • 09/11/2023
The vulnerability identified as CVE-2019-4258 affects IBM Sterling B2B Integrator versions 6.0.0.0 and 6.0.0.1 Standard Edition, representing a critical cross-site scripting flaw that compromises the security integrity of the web-based user interface. This vulnerability falls under the Common Weakness Enumeration category CWE-79 which specifically addresses Cross-Site Scripting flaws, where improper validation or sanitization of user-supplied data allows malicious scripts to be executed within the context of a trusted session. The affected system operates as a business-to-business integration platform that facilitates secure data exchange between organizations, making it a prime target for attackers seeking to exploit web application vulnerabilities.
The technical implementation of this XSS vulnerability occurs when the web interface fails to properly sanitize user input before rendering it back to the browser. Attackers can leverage this weakness by injecting malicious JavaScript code through input fields or parameters within the web application, which then executes in the context of other users' sessions. The vulnerability is particularly dangerous because it enables attackers to manipulate the intended functionality of the application, potentially allowing them to steal session cookies, credentials, or other sensitive information from authenticated users. This type of attack directly violates the principle of least privilege and can lead to unauthorized access to business-critical integration processes.
The operational impact of this vulnerability extends beyond simple data theft, as it can enable sophisticated attack vectors including session hijacking, credential harvesting, and potentially full system compromise. When attackers successfully exploit this vulnerability, they can impersonate legitimate users within the trusted session, gaining access to sensitive business data and integration workflows that the system is designed to protect. The attack surface is particularly concerning given that IBM Sterling B2B Integrator is typically deployed in enterprise environments where it handles critical business transactions and data exchanges between trading partners. The vulnerability's presence in both 6.0.0.0 and 6.0.0.1 versions indicates a widespread issue affecting multiple releases of the product, suggesting that organizations using these versions face significant risk without proper mitigation.
Organizations should implement immediate remediation measures including applying the vendor-provided security patches, implementing proper input validation and output encoding mechanisms, and deploying web application firewalls to detect and block malicious script injection attempts. The mitigation strategy should align with the ATT&CK framework's methodology for defending against web application attacks, specifically targeting the T1059.007 technique related to script injection and T1566.001 for social engineering through malicious web content. Additionally, implementing content security policies, regular security scanning, and user education about recognizing potential XSS attack vectors will help reduce the risk exposure. Organizations should also consider network segmentation and monitoring to detect suspicious activities that may indicate exploitation attempts, as the vulnerability's impact can be amplified when attackers gain access to integrated business systems through compromised user sessions.