Red Hat Security Advisory 2013-0749-01 - Apache CXF is an open source services framework. It was found that the Apache CXF UsernameTokenPolicyValidator and UsernameTokenInterceptor allowed a UsernameToken element with no password child element to bypass authentication. A remote attacker could use this flaw to circumvent access controls applied to web services by omitting the password in a UsernameToken. This flaw was exploitable on web services that rely on WS-SecurityPolicy plain text UsernameTokens to authenticate users. It was not exploitable when using hashed passwords or WS-Security without WS-SecurityPolicy.
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