Red Hat Security Advisory 2015-0847-01

Red Hat Security Advisory 2015-0847-01 - Red Hat JBoss Enterprise Application Platform 6 is a platform for Java applications based on JBoss Application Server 7. It was found that a prior countermeasure in Apache WSS4J for Bleichenbacher's attack on XML Encryption threw an exception that permitted an attacker to determine the failure of the attempted attack, thereby leaving WSS4J vulnerable to the attack. The original flaw allowed a remote attacker to recover the entire plain text form of a symmetric key. It was found that Apache WSS4J permitted bypass of the requireSignedEncryptedDataElements configuration property via XML Signature wrapping attacks. A remote attacker could use this flaw to modify the contents of a signed request.

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