Apache WSS4J before 1.6.17 and 2.0.x before 2.0.2 improperly leaks information about decryption failures when decrypting an encrypted key or message data, which makes it easier for remote attackers to recover the plaintext form of a symmetric key via a series of crafted messages. NOTE: this vulnerability exists because of an incomplete fix for CVE-2011-2487.
We recommend upgrading to a version of this component that is not vulnerable to this specific issue.
> On affected products, this flaw can be mitigated by using the RSA-OAEP key wrap algorithm, instead of the default RSA-v1.5 algorithm. To use RSA-OAEP, edit the jboss-ws-security configuration file and add the property keyWrapAlgorithm="rsa_oaep" to the encrypt element.