The memcache token backend in OpenStack Identity (Keystone) 2013.1 through 2.013.1.4, 2013.2 through 2013.2.2, and icehouse before icehouse-3, when issuing a trust token with impersonation enabled, does not include this token in the trustee's token-index-list, which prevents the token from being invalidated by bulk token revocation and allows the trustee to bypass intended access restrictions.

References

• https://nvd.nist.gov/vuln/detail/CVE-2014-2237
• https://bugs.launchpad.net/keystone/+bug/1260080
• http://rhn.redhat.com/errata/RHSA-2014-0580.html
• http://www.openwall.com/lists/oss-security/2014/03/04/16
• http://www.securityfocus.com/bid/65895
• openstack/keystone@813d125
• openstack/keystone@a411c94
• openstack/keystone@b6f0e26
• https://github.com/pypa/advisory-database/tree/main/vulns/keystone/PYSEC-2014-105.yaml