CyberRota Analysis
AI-GeneratedApache WSS4J is vulnerable due to its handling of Nonce values in UsernameTokens, allowing attackers to replay captured tokens by manipulating the Nonce format. This could lead to unauthorized access as the replayed tokens may be accepted for requests until they expire. Organizations using Apache CXF with nonce replay cache enabled, particularly those relying on password digest tokens, should prioritize upgrading to the recommended secure versions to mitigate this risk.
Original NVD Description
Apache WSS4J remembers the Nonce of each UsernameToken it accepts, so a captured token cannot be reused. It stored the Nonce as raw base64 text, but authentication decodes that text and uses the bytes.The same bytes can be written as base64 in several ways. An attacker who captured an authenticated request could re-send it with a space added to the Nonce: the password digest still verified, but the token no longer matched the remembered one, so the replay was accepted. Since a UsernameToken does not cover the message body, the captured token could then be reused on requests of the attacker's choosing until it expired. Affects deployments with a nonce replay cache configured, as Apache CXF has by default, and only tokens using a password digest. The cache is now keyed on the decoded Nonce. Users are recommended to upgrade to versions 4.0.2 or 3.0.6 or 2.4.4, which fix this issue.
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