Apache Shiro before 1.2.5, when a cipher key has not been configured for the “remember me” feature, allows remote attackers to execute arbitrary code or bypass intended access restrictions via an unspecified request parameter.
packetstormsecurity.com/files/137310/Apache-Shiro-1.2.4-Information-Disclosure.html
packetstormsecurity.com/files/157497/Apache-Shiro-1.2.4-Remote-Code-Execution.html
rhn.redhat.com/errata/RHSA-2016-2035.html
rhn.redhat.com/errata/RHSA-2016-2036.html
www.securityfocus.com/archive/1/538570/100/0/threaded
www.securityfocus.com/bid/91024
lists.apache.org/thread.html/ef3a800c7d727a00e04b78e2f06c5cd8960f09ca28c9b69d94c3c4c4@%3Cannouncements.aurora.apache.org%3E
nvd.nist.gov/vuln/detail/CVE-2016-4437