CVE-2017-1144 in WebSphere Message Broker
Summary
by MITRE
IBM WebSphere Message Broker could allow a local user with specialized access to prevent the message broker from starting. IBM X-Force ID: 122033.
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Analysis
by VulDB Data Team • 12/30/2020
IBM WebSphere Message Broker vulnerability CVE-2017-1144 represents a local privilege escalation flaw that enables authenticated users with specialized access to disrupt message broker operations. This vulnerability resides within the broker's initialization and startup mechanisms, where insufficient input validation allows malicious actors to manipulate critical system components during the boot process. The flaw specifically affects the message broker's ability to properly initialize its runtime environment, potentially leading to complete service disruption and denial of message processing capabilities. Attackers with access to the system can exploit this weakness by crafting malicious inputs that interfere with the broker's normal startup sequence, effectively preventing it from launching and maintaining operational availability. The vulnerability demonstrates a clear breakdown in the principle of least privilege and proper access control enforcement within the WebSphere Message Broker framework. This issue directly relates to CWE-264, which addresses permissions, privileges, and access controls, and aligns with ATT&CK technique T1068, involving local privilege escalation through exploitation of system weaknesses. The impact extends beyond simple service disruption as it compromises the integrity of the messaging infrastructure, potentially affecting critical business processes that depend on message broker functionality.
The technical exploitation of CVE-2017-1144 requires an attacker to possess legitimate credentials and system access to manipulate the message broker's startup configuration files or runtime parameters. This vulnerability typically manifests when the broker attempts to validate and process initialization parameters from external sources without adequate sanitization or access control checks. The flaw creates a condition where malicious input can cause the broker's startup routine to fail or terminate prematurely, resulting in an unresponsive messaging system that cannot process incoming or outgoing messages. The vulnerability's exploitation pathway involves leveraging existing system access to inject malformed parameters or manipulate configuration data that the broker processes during initialization. This creates a scenario where the system's normal operational flow is disrupted, leading to cascading failures in message processing capabilities. The security implications are particularly concerning in enterprise environments where message brokers handle critical transactional data flows, as this vulnerability could be weaponized to create targeted service outages or denial of service conditions. Organizations relying on WebSphere Message Broker for mission-critical operations face significant operational risks when this vulnerability remains unaddressed.
Organizations should implement comprehensive mitigation strategies that include immediate patch deployment from IBM to address the root cause of CVE-2017-1144. The recommended approach involves applying the vendor-provided security fix that strengthens input validation mechanisms and enhances access control enforcement during the message broker's startup process. System administrators should conduct thorough access control reviews to ensure that only authorized personnel maintain the ability to modify broker configuration files and startup parameters. Network segmentation and privilege separation techniques should be implemented to limit the potential impact of compromised accounts and reduce the attack surface available to malicious actors. Regular security audits and monitoring of broker startup logs should be established to detect anomalous behavior that might indicate exploitation attempts. Additionally, implementing automated patch management processes will help ensure timely deployment of security updates across all affected systems. The mitigation strategy should also include establishing incident response procedures specifically tailored to address message broker disruption scenarios, ensuring rapid identification and remediation of potential exploitation attempts. Organizations should consider implementing additional security controls such as file integrity monitoring and privileged access management solutions to provide layered defense against similar vulnerabilities. The remediation process must also include thorough testing of patches in controlled environments before deployment to production systems, ensuring that the security fixes do not introduce compatibility issues or operational disruptions that could affect message processing capabilities.