CVE-2012-5571 Information

Description

OpenStack Keystone Essex (2012.1) and Folsom (2012.2) does not properly handle EC2 tokens when the user role has been removed from a tenant which allows remote authenticated users to bypass intended authorization restrictions by leveraging a token for the removed user role.

Reference

http://lists.fedoraproject.org/pipermail/package-announce/2012-December/094286.html http://rhn.redhat.com/errata/RHSA-2012-1556.html http://rhn.redhat.com/errata/RHSA-2012-1557.html http://secunia.com/advisories/51423 http://secunia.com/advisories/51436 http://www.openwall.com/lists/oss-security/2012/11/28/5 http://www.openwall.com/lists/oss-security/2012/11/28/6 http://www.securityfocus.com/bid/56726 http://www.ubuntu.com/usn/USN-1641-1 https://bugs.launchpad.net/keystone/+bug/1064914 https://exchange.xforce.ibmcloud.com/vulnerabilities/80333 https://github.com/openstack/keystone/commit/37308dd4f3e33f7bd0f71d83fd51734d1870713b https://github.com/openstack/keystone/commit/8735009dc5b895db265a1cd573f39f4acfca2a19 https://github.com/openstack/keystone/commit/9d68b40cb9ea818c48152e6c712ff41586ad9653