Three weaknesses in Apache Tomcat's implementation of DIGEST authentication were identified and resolved. Tomcat tracked client rather than server nonces and nonce count. When a session ID was present, authentication was bypassed. The user name and password were not checked before when indicating that a nonce was stale. Tomcat versions 5.5.0 through 5.5.35, 6.0.0 through 6.0.35, and 7.0.0 through 7.0.29 are affected.
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