CVE-2018-1792 in WebSphere MQ
Summary
by MITRE
IBM WebSphere MQ 8.0.0.0 through 8.0.0.10, 9.0.0.0 through 9.0.0.5, 9.0.1 through 9.0.5, and 9.1.0.0 could allow a local user to inject code that could be executed with root privileges. IBM X-Force ID: 148947.
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Analysis
by VulDB Data Team • 06/06/2023
IBM WebSphere MQ represents a critical messaging middleware platform widely deployed in enterprise environments for facilitating secure communication between applications. The vulnerability identified as CVE-2018-1792 specifically targets the local privilege escalation functionality within the messaging queue manager service, creating a dangerous attack surface that could be exploited by malicious actors. This issue affects multiple versions of the IBM WebSphere MQ product line, including the 8.0.0.x series through 8.0.0.10, 9.0.0.x series through 9.0.0.5, 9.0.1 through 9.0.5, and the early 9.1.0.0 release, indicating a widespread impact across the product's lifecycle.
The technical flaw stems from improper privilege handling within the queue manager's initialization and execution processes. When the messaging service starts or restarts, certain components fail to properly drop elevated privileges, leaving processes running with root or administrator privileges longer than necessary. This design oversight creates an opportunity for local users to manipulate the execution environment and inject malicious code that will subsequently execute with the highest available privileges. The vulnerability is classified under CWE-276 which specifically addresses improper privilege management, making it a direct violation of fundamental security principles for process isolation and privilege separation.
The operational impact of this vulnerability extends far beyond simple local privilege escalation, as it fundamentally compromises the security posture of systems running IBM WebSphere MQ. Attackers could leverage this vulnerability to install backdoors, modify system configurations, access sensitive data, or establish persistent access to the compromised systems. The risk is particularly severe in enterprise environments where IBM WebSphere MQ typically operates with elevated privileges to manage message queues and ensure reliable communication between critical business applications. This vulnerability could enable attackers to gain complete control over message processing workflows, potentially causing data breaches, service disruptions, or unauthorized system modifications that could affect business continuity.
Organizations should immediately implement mitigation strategies focusing on privilege management and system hardening. The most effective immediate measure involves applying the vendor-provided security patches and updates that address the privilege escalation flaw. Additionally, system administrators should review and implement proper privilege separation practices, ensuring that the queue manager service operates with the minimum necessary privileges for its legitimate functions. The implementation of principle of least privilege should be enforced through careful configuration management and regular security audits. Network segmentation and access controls should also be reviewed to limit potential attack vectors, while monitoring systems should be enhanced to detect anomalous process execution patterns that might indicate exploitation attempts. This vulnerability aligns with several ATT&CK techniques including privilege escalation and persistence mechanisms, making comprehensive defensive measures essential for protecting enterprise messaging infrastructure.