CVE-2016-3052 in WebSphere MQ
Summary
by MITRE
IBM WebSphere MQ 8.0, under nonstandard configurations, sends password data in cleartext over the network that could be intercepted using main in the middle techniques. IBM Reference #: 1998660.
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Analysis
by VulDB Data Team • 02/23/2017
IBM WebSphere MQ version 8.0 contains a critical security vulnerability that arises from improper handling of authentication credentials during network communication. This flaw specifically manifests under nonstandard configurations where password data is transmitted in cleartext format rather than being encrypted during transit. The vulnerability represents a significant risk to organizations relying on IBM WebSphere MQ for message queuing and middleware communications, as it directly enables man-in-the-middle attack vectors that could compromise sensitive authentication information. The issue stems from the messaging system's failure to implement proper encryption mechanisms for credential transmission, creating an avenue for attackers to intercept and potentially exploit password data during network communication.
The technical implementation of this vulnerability occurs at the network protocol level where authentication credentials are not adequately protected during transmission between clients and the WebSphere MQ server. When configured outside of standard security parameters, the system defaults to cleartext transmission of password information, which violates fundamental security principles for protecting sensitive data in transit. This behavior creates a direct pathway for network-based attackers to capture authentication credentials using standard packet sniffing and interception techniques. The vulnerability's impact is exacerbated by the fact that it operates silently in nonstandard configurations, making detection difficult for system administrators who may not be aware of the specific configuration requirements needed to enable proper encryption.
The operational implications of CVE-2016-3052 extend far beyond simple credential theft, as compromised authentication information can lead to complete system compromise and unauthorized access to message queues containing sensitive business data. Attackers who successfully intercept password credentials can gain unauthorized access to the messaging infrastructure, potentially leading to data breaches, message manipulation, and disruption of business operations. The vulnerability affects organizations that may have implemented custom or legacy configurations without proper security hardening, creating an environment where the default security settings are bypassed or overridden. This presents a particular risk in enterprise environments where WebSphere MQ serves as a critical component of distributed application architectures and where message integrity and confidentiality are paramount.
Organizations should implement immediate mitigations including mandatory encryption configuration for all WebSphere MQ installations, enforcing secure communication protocols, and conducting comprehensive configuration reviews to ensure all systems operate under standard security parameters. The vulnerability aligns with CWE-312 (Cleartext Storage of Sensitive Information) and CWE-319 (Cleartext Transmission of Sensitive Information) classifications, which specifically address the improper handling of sensitive data in unencrypted formats. From an ATT&CK framework perspective, this vulnerability maps to T1046 (Network Service Scanning) and T1566 (Phishing) as attackers may use network interception techniques to gather credentials, and T1071 (Application Layer Protocol) as the attack occurs during normal application communication. System administrators should ensure all WebSphere MQ instances are configured to use SSL/TLS encryption for all communication channels, implement proper network segmentation, and regularly audit configuration settings to prevent unauthorized modifications that could reintroduce this vulnerability.