CVE-2019-4146 in Sterling B2B Integrator Standard Edition
Summary
by MITRE
IBM Sterling B2B Integrator Standard Edition 6.0.0.0 and 6.0.0.1 could allow an authenticated user to obtain sensitive document information under unusual circumstances. IBM X-Force ID: 158401.
VulDB is the best source for vulnerability data and more expert information about this specific topic.
Analysis
by VulDB Data Team • 09/07/2023
IBM Sterling B2B Integrator Standard Edition versions 6.0.0.0 and 6.0.0.1 contain a vulnerability that allows authenticated users to access sensitive document information through improper access control mechanisms. This flaw represents a privilege escalation issue where legitimate users can potentially read documents they should not have access to based on their assigned permissions. The vulnerability occurs under specific unusual circumstances that typically involve misconfigurations or abnormal user behavior patterns within the system. The affected system maintains document-level access controls that fail to properly validate user permissions when processing certain document requests, creating an avenue for unauthorized information disclosure.
The technical implementation of this vulnerability stems from inadequate input validation and access control enforcement within the document retrieval subsystem. When authenticated users make requests for specific documents, the system fails to perform comprehensive permission checks against the user's assigned roles and document access policies. This weakness aligns with CWE-285, which addresses improper authorization in access control systems, and reflects poor adherence to the principle of least privilege. The flaw specifically manifests when the system processes document metadata requests or when users attempt to access documents through indirect pathways that bypass normal authorization checks. The vulnerability demonstrates a critical gap in the application's security architecture where user authentication is separated from proper authorization enforcement.
Operational impact of this vulnerability extends beyond simple information disclosure to potentially compromise business-critical data flows within the B2B integration environment. Organizations using IBM Sterling B2B Integrator may experience unauthorized access to sensitive transaction documents, contract agreements, or other proprietary business information that should remain restricted to authorized personnel only. The unusual circumstances under which this vulnerability operates suggest that it may not be easily exploitable through automated means, but rather requires specific conditions or user actions that could indicate insider threats or misconfigured system settings. This vulnerability directly impacts the confidentiality aspect of the CIA triad and could lead to regulatory compliance violations, especially in industries subject to data protection regulations such as healthcare, finance, or government sectors.
Mitigation strategies for this vulnerability should focus on implementing comprehensive access control reviews and strengthening authorization mechanisms within the IBM Sterling B2B Integrator environment. Organizations must conduct thorough permission audits to ensure that user roles and document access policies are properly configured and enforced. System administrators should implement additional logging and monitoring capabilities to detect unusual document access patterns that may indicate exploitation attempts. The recommended approach includes upgrading to patched versions of IBM Sterling B2B Integrator where available, as well as implementing network segmentation and additional authentication layers. This vulnerability also aligns with ATT&CK technique T1078 which covers valid accounts and privilege escalation, suggesting that organizations should enhance their account management practices and monitor for suspicious access behaviors. Regular security assessments and penetration testing should be conducted to identify similar access control weaknesses that could lead to information disclosure in other system components.