CVE-2007-0432 in AquaLogic Service Bus
Summary
by MITRE
BEA AquaLogic Service Bus 2.0, 2.1, and 2.5 does not properly reject malformed request messages to a proxy service, which might allow remote attackers to bypass authorization policies and route requests to back-end services or conduct other unauthorized activities.
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Analysis
by VulDB Data Team • 10/07/2017
The vulnerability identified as CVE-2007-0432 affects BEA AquaLogic Service Bus versions 2.0, 2.1, and 2.5, representing a critical authorization bypass flaw that undermines the security posture of enterprise service bus implementations. This vulnerability resides within the proxy service component of the AquaLogic Service Bus, which acts as an intermediary between client applications and backend services, routing and processing service requests. The flaw manifests when the system fails to properly validate and reject malformed request messages, creating a pathway for unauthorized access that could potentially compromise the entire service infrastructure.
The technical implementation of this vulnerability stems from inadequate input validation mechanisms within the proxy service message processing pipeline. When malformed requests are received, the system should enforce strict validation protocols to ensure message integrity and proper authorization before forwarding requests to backend services. However, the flawed implementation allows certain malformed messages to pass through without proper authorization checks, effectively bypassing the security controls that should govern access to protected backend resources. This represents a classic case of insufficient validation and sanitization, aligning with CWE-20 which addresses "Improper Input Validation" in software security implementations.
The operational impact of this vulnerability extends beyond simple unauthorized access, creating potential for significant service disruption and data compromise within enterprise environments. Remote attackers could exploit this weakness to route requests directly to backend services without proper authentication or authorization, potentially gaining access to sensitive data or functionality that should remain protected. The implications are particularly severe in service-oriented architecture environments where AquaLogic Service Bus serves as a critical integration point, as successful exploitation could enable attackers to escalate privileges, conduct unauthorized data access, or manipulate service workflows. This vulnerability directly relates to ATT&CK technique T1078 which covers "Valid Accounts" and T1566 which addresses "Phishing" in the context of unauthorized access through service bus implementations.
Organizations utilizing affected AquaLogic Service Bus versions face substantial risk of exploitation, particularly in environments where service bus components handle sensitive transactions or access privileged backend systems. The vulnerability's remote exploitability means that attackers need only access to the network where the service bus operates to potentially compromise the system. Security professionals should prioritize immediate patching of affected systems, as the vulnerability does not require authentication to exploit and can be leveraged by attackers with minimal technical expertise. Additionally, implementing network segmentation, monitoring for unusual proxy service traffic patterns, and establishing robust input validation controls within the service bus configuration can provide additional layers of defense against exploitation attempts. The vulnerability underscores the critical importance of proper input validation in enterprise integration platforms and highlights the need for comprehensive security testing of service bus implementations to prevent similar authorization bypass scenarios.