CVE-2019-4028 in Sterling B2B Integrator
Summary
by MITRE
IBM Sterling B2B Integrator 5.2.0.1 through 6.0.0.0 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: 155906.
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Analysis
by VulDB Data Team • 07/26/2023
The vulnerability identified as CVE-2019-4028 affects IBM Sterling B2B Integrator versions 5.2.0.1 through 6.0.0.0, representing a critical cross-site scripting flaw that compromises the security integrity of the web-based user interface. This vulnerability resides within the application's input validation mechanisms, specifically in how the system processes user-supplied data within web forms and parameter handling. The flaw enables malicious actors to inject malicious JavaScript code through carefully crafted input fields, which then executes within the context of other users' sessions when they interact with the compromised application interface.
The technical implementation of this vulnerability stems from insufficient sanitization of user inputs within the web application's rendering pipeline. When users submit data through web forms or URL parameters, the application fails to properly validate and escape special characters that could be interpreted as executable code by web browsers. This weakness allows attackers to craft malicious payloads that bypass the application's security controls and execute within the victim's browser session. The vulnerability is particularly dangerous because it operates within the trusted session context, meaning that any credentials or sensitive information processed within the compromised session could be exposed to unauthorized parties.
The operational impact of this vulnerability extends beyond simple script execution, as it creates a persistent threat vector that can be exploited to conduct session hijacking attacks and credential theft. Attackers can leverage this flaw to steal session cookies, capture user credentials, or manipulate the application's behavior to perform unauthorized actions on behalf of legitimate users. The attack surface is particularly concerning given that IBM Sterling B2B Integrator is designed for enterprise integration environments where sensitive business data flows through the system, making the potential exposure of credentials and session information particularly damaging to organizational security posture. This vulnerability directly aligns with CWE-79 which classifies cross-site scripting as a critical weakness in web application security.
Organizations utilizing affected IBM Sterling B2B Integrator versions should prioritize immediate remediation through official IBM security patches and updates. The recommended mitigation strategy involves implementing comprehensive input validation and output encoding mechanisms throughout the application's web interface, ensuring that all user-supplied data is properly sanitized before being rendered in web pages. Network segmentation and web application firewalls can provide additional protective layers while patches are deployed, though these measures should not be considered permanent solutions. Security teams should also implement monitoring for suspicious user behavior and anomalous access patterns that might indicate exploitation attempts, as this vulnerability can be exploited through various attack vectors including phishing campaigns, compromised user accounts, or direct web interface manipulation.
The vulnerability demonstrates the critical importance of maintaining up-to-date security controls in enterprise integration platforms, where the compromise of a single application interface can potentially expose extensive business data flows. Organizations should conduct thorough security assessments of their integration environments to identify similar vulnerabilities in related systems and ensure comprehensive protection against persistent threat actors who may leverage such flaws to establish long-term access to critical business processes. This vulnerability also highlights the necessity of implementing robust security development lifecycle practices that include comprehensive input validation, secure coding standards, and regular security testing to prevent similar issues in future application deployments.