CVE-2022-39161 in WebSphere Application Server
Summary
by MITRE • 05/03/2023
IBM WebSphere Application Server 7.0, 8.0, 8.5, 9.0, and IBM WebSphere Application Server Liberty, when configured to communicate with the Web Server Plug-ins for IBM WebSphere Application Server, could allow an authenticated user to conduct spoofing attacks. A man-in-the-middle attacker could exploit this vulnerability using a certificate issued by a trusted authority to obtain sensitive information. IBM X-Force ID: 235069.
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Analysis
by VulDB Data Team • 05/27/2023
This vulnerability resides in IBM WebSphere Application Server versions 7.0, 8.0, 8.5, 9.0, and IBM WebSphere Application Server Liberty, specifically when these servers are configured to communicate with the Web Server Plug-ins for IBM WebSphere Application Server. The flaw represents a certificate validation weakness that allows authenticated users to conduct spoofing attacks, essentially enabling man-in-the-middle exploitation through trusted certificate issuance. The vulnerability stems from insufficient certificate validation mechanisms during the communication process between the application server and web server plug-ins, creating a pathway for attackers to manipulate the authentication flow.
The technical implementation of this vulnerability involves the improper handling of SSL/TLS certificate validation within the WebSphere server configuration. When the application server communicates with web server plug-ins, it fails to adequately verify certificate chains or implement proper certificate pinning mechanisms. This weakness allows an attacker with access to a certificate issued by a trusted authority to impersonate legitimate services and intercept sensitive communications. The vulnerability is categorized under CWE-295 which specifically addresses "Improper Certificate Validation" and aligns with ATT&CK technique T1552.001 for "Unsecured Credentials" and T1041 for "Exfiltration Over C2 Channel". The flaw essentially undermines the trust model that should exist between the application server and its web server components.
The operational impact of this vulnerability is significant as it allows attackers to conduct sophisticated man-in-the-middle attacks that can lead to unauthorized access to sensitive data and system compromise. An authenticated user with knowledge of the system architecture can exploit this weakness to intercept communications between the application server and web server plug-ins, potentially gaining access to session tokens, user credentials, and other sensitive information. This vulnerability particularly affects organizations that rely on IBM WebSphere Application Server for critical business applications, as it undermines the security of their entire web infrastructure. The attack vector is particularly dangerous because it leverages trust relationships that should be secure, making detection more challenging and potentially allowing prolonged unauthorized access to sensitive systems.
Organizations should implement immediate mitigations including updating to patched versions of IBM WebSphere Application Server, implementing certificate pinning mechanisms, and strengthening certificate management practices. The recommended approach involves configuring proper certificate validation settings within the web server plug-in configurations, ensuring that certificate chains are properly verified, and implementing additional authentication layers. Security administrators should also consider implementing network monitoring solutions to detect unusual certificate validation patterns and establish more robust certificate lifecycle management processes. The vulnerability highlights the importance of maintaining up-to-date security patches and implementing defense-in-depth strategies that go beyond simple certificate validation to include network segmentation and continuous monitoring of trust relationships within application infrastructure. Organizations must also review their existing certificate issuance and management policies to prevent unauthorized certificate usage that could enable similar attacks.