============================================================================================ OSSA-2016-008: Incorrect Audit IDs in Keystone Fernet Tokens can result in revocation bypass ============================================================================================
:Date: May 23, 2016 :CVE: CVE-2016-4911 Affects ~~~~~~~ - Keystone: ==9.0.0 Description ~~~~~~~~~~~ Lance Bragstad (Rackspace) reported a vulnerability in the Keystone Fernet Token Provider. By rescoping a token a user will receive a new token without correct audit_ids, these incorrect audit_ids will prevent the entire chain of tokens from being revoked properly. This vulnerability does not impact revoking a token by its individual audit_id. Only deployments with Keystone configured to use Fernet tokens are impacted. Patches ~~~~~~~ - https://review.openstack.org/#/c/312582/ (Mitaka) - https://review.openstack.org/#/c/311886/ (Newton) Credits ~~~~~~~ - Lance Bragstad from Rackspace (CVE-2016-4911) References ~~~~~~~~~~ - https://bugs.launchpad.net/bugs/1577558 - http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-4911 Notes ~~~~~ - This fix was included in the openstack/keystone 9.0.1 (mitaka) release.
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