CVE-2018-7682 in Business Manager
Summary
by MITRE
Micro Focus Solutions Business Manager versions prior to 11.4 allows a user to invoke SBM RESTful services across domains.
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Analysis
by VulDB Data Team • 02/21/2020
The vulnerability identified as CVE-2018-7682 affects Micro Focus Solutions Business Manager versions before 11.4, presenting a critical cross-domain access issue that undermines the security boundaries of the application. This flaw enables authenticated users to invoke Service Broker Manager RESTful services across different security domains, effectively bypassing the intended domain isolation mechanisms that should protect sensitive operations and data within the system. The issue stems from insufficient validation of cross-domain requests within the REST API implementation, allowing malicious actors to exploit the service invocation interface to access resources they should not be authorized to reach.
The technical root cause of this vulnerability lies in the improper handling of domain boundaries within the SBM RESTful service architecture. When users make requests to the RESTful endpoints, the system fails to properly validate whether the requesting user has authorization to access services across different domains. This represents a classic case of insufficient access control enforcement and domain validation, which aligns with CWE-284 Access Control Issues. The flaw specifically manifests when the application processes cross-domain service requests without adequate authentication and authorization checks, potentially allowing privilege escalation or unauthorized data access.
From an operational impact perspective, this vulnerability creates significant security risks for organizations using affected versions of Micro Focus Business Manager. An authenticated attacker could leverage this weakness to access sensitive business processes, data, and service endpoints that should be restricted to specific domains or user roles. The attack surface expands considerably as users can potentially invoke services across multiple business units or security domains, potentially leading to data leakage, service disruption, or unauthorized business process manipulation. This vulnerability directly impacts the confidentiality, integrity, and availability of the affected system, making it particularly dangerous in enterprise environments where business manager systems handle critical business operations and sensitive data.
The exploitation of this vulnerability can be mapped to several ATT&CK techniques including T1078 Valid Accounts for initial access and T1566 Phishing for initial compromise, though the actual attack vector relies on the authenticated user leveraging their existing credentials to make unauthorized cross-domain requests. Organizations should implement immediate mitigations including upgrading to Micro Focus Business Manager version 11.4 or later, which contains the necessary security patches to properly enforce domain boundaries. Additional protective measures include implementing network segmentation, monitoring cross-domain service access patterns, and configuring proper access controls within the RESTful API layer to ensure that domain validation occurs at every service invocation point. Security teams should also consider implementing application firewalls or API gateways to provide an additional layer of protection against unauthorized cross-domain access attempts.