The Servlet Engine/Web Container component in IBM WebSphere Application Server (WAS) 6.1 before 188.8.131.52 and 7.0 before 184.108.40.206, when SPNEGO Single Sign-on (SSO) and disableSecurityPreInvokeOnFilters are configured, allows remote attackers to bypass authentication via a request for a "secure URL," related to a certain invokefilterscompatibility property.
CWE-287 - Improper Authentication
Improper (or broken) authentication attacks are widespread, and have accounted for many of the worst data breaches in recent years. Improper authentication attacks are a class of vulnerabilities where an attacker impersonates a legitimate user by exploiting weaknesses in either session management or credential management to gain access to the user’s account. This can result in disclosure of sensitive information, and can lead to system compromise, theft, identity theft, and fraud.