CVE-2011-1309 in WebSphere Application Server
Summary
by MITRE
The Plug-in component in IBM WebSphere Application Server (WAS) before 7.0.0.15 does not properly handle trace requests, which has unspecified impact and attack vectors.
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Analysis
by VulDB Data Team • 10/19/2021
The vulnerability identified as CVE-2011-1309 affects the plug-in component of IBM WebSphere Application Server version 7.0.0.14 and earlier, representing a significant security flaw in enterprise application server infrastructure. This issue stems from improper handling of trace requests within the WebSphere plug-in module, which operates as a critical intermediary between web servers and application servers in distributed enterprise environments. The vulnerability exists in the communication layer that facilitates request routing and processing, potentially exposing sensitive operational information to unauthorized parties. Organizations relying on WebSphere for mission-critical applications face substantial risk from this flaw, as it operates at a foundational level of the application delivery architecture.
The technical flaw manifests in the plug-in component's insufficient validation and processing of trace request parameters, creating potential attack vectors that could lead to information disclosure or system compromise. When trace requests are improperly handled, the system may inadvertently reveal internal system information, configuration details, or operational data that should remain confidential. This misconfiguration allows attackers to potentially exploit the vulnerability through crafted requests that manipulate the trace functionality, leading to unauthorized access to sensitive system information. The unspecified nature of the impact and attack vectors suggests that the vulnerability could enable various malicious activities including reconnaissance, data exfiltration, or further exploitation attempts. The flaw aligns with CWE-200, which addresses information exposure through improper error handling and debugging mechanisms in software systems.
The operational impact of CVE-2011-1309 extends beyond immediate security concerns to encompass broader enterprise risks including potential service disruption, compliance violations, and reputational damage. Organizations utilizing affected WebSphere versions may experience unauthorized access to system internals, which could facilitate more sophisticated attacks targeting application logic or underlying infrastructure. The vulnerability particularly affects enterprises that depend on WebSphere for hosting sensitive applications, as the trace functionality often contains detailed operational information including system paths, internal component names, and configuration parameters. Attackers could leverage this information to craft targeted attacks against other system components or to bypass security controls that rely on the assumption of system confidentiality. This vulnerability also represents a potential pathway for attackers to establish persistence within enterprise networks, as the information disclosed could reveal system architecture details that inform future exploitation attempts.
Mitigation strategies for this vulnerability should prioritize immediate patching of affected WebSphere Application Server installations to version 7.0.0.15 or later, which contains the necessary security fixes. Organizations should also implement network-level restrictions to limit access to trace functionality and monitor for unusual trace request patterns that may indicate exploitation attempts. The remediation process must include comprehensive testing to ensure that patch deployment does not disrupt existing application functionality, particularly in complex enterprise environments where multiple applications depend on WebSphere infrastructure. Additionally, security teams should conduct thorough audits of trace configuration settings and disable unnecessary trace capabilities in production environments. This vulnerability demonstrates the importance of proper input validation and error handling in enterprise software components, aligning with ATT&CK technique T1211 for defensive measures against information exposure and system reconnaissance activities. Organizations should also consider implementing intrusion detection systems to monitor for exploitation attempts targeting this specific vulnerability class.