message/ax/AxMessage.java in OpenID4Java before 0.9.6 final, as used in JBoss Enterprise Application Platform 5.1 before 5.1.2, Step2, Kay Framework before 1.0.2, and possibly other products does not verify that Attribute Exchange (AX) information is signed, which allows remote attackers to modify potentially sensitive AX information without detection via a man-in-the-middle (MITM) attack.
openid.net/2011/05/05/attribute-exchange-security-alert/
rhn.redhat.com/errata/RHSA-2012-0441.html
rhn.redhat.com/errata/RHSA-2012-0519.html
secunia.com/advisories/44496
secunia.com/advisories/48697
secunia.com/advisories/48954
securitytracker.com/id?1026400
www.openwall.com/lists/oss-security/2011/11/16/1
www.openwall.com/lists/oss-security/2011/11/17/1
www.redhat.com/support/errata/RHSA-2011-1804.html
issues.jboss.org/browse/JBEPP-1368
issues.jboss.org/browse/SOA-3597