CVE-2012-5351
Apache Axis2 allows remote attackers to forge messages and bypass authentication via a SAML assertion that lacks a Signature element, aka a "Signature exclusion attack," a different vulnerability than CVE-2012-4418.
Date published : 2012-10-09
http://www.nds.rub.de/media/nds/veroeffentlichungen/2012/08/22/BreakingSAML_3.pdf