Consensus seems to be that this was intentional behavior, but worth changing (as evidenced by a subsequent fix to master). Given that and the lack of stable branch backports, I'm going to treat this as a security hardening opportunity. If there is fierce disagreement favoring backports and an official advisory, we can revisit the classification at that time.
** Changed in: ossa Status: Incomplete => Won't Fix ** Information type changed from Public Security to Public ** Tags added: security -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to OpenStack Identity (keystone). https://bugs.launchpad.net/bugs/1649446 Title: Non-Admin Access to Revocation Events Status in OpenStack Identity (keystone): Fix Released Status in OpenStack Security Advisory: Won't Fix Bug description: With the default Keystone policy any authed user can list all revocation events for the cluster: https://github.com/openstack/keystone/blob/master/etc/policy.json#L179 This can be done by directly calling the API as such: curl -g -i -X GET http://localhost/identity/v3/OS-REVOKE/events -H "Accept: application/json" -H "X-Auth-Token: <non_admin_token_goes_here>" and this will provide you with a normal revocation event list (see attachment). This will allow a user to over time collect a list of user_ids and project_ids. The project_ids aren't particularly useful, but the user_ids can be used to lock people of of their accounts. Or if rate limiting is not setup (a bad idea), or somehow bypassed, would allow someone to brute force access to those ids. Knowing the ids is no worse than knowing the usernames, but as a non- admin you shouldn't have access to such a list anyway. It is also worth noting that OpenStack policy files are rife with these blank policy rules, not just Keystone. Some are safe and intended to be accessible by any authed user, others are checked at the code layer, but there may be other rules that are unsafe to expose to any authed user and as such should actually default to "rule:admin_required" or something other than blank. To manage notifications about this bug go to: https://bugs.launchpad.net/keystone/+bug/1649446/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : yahoo-eng-team@lists.launchpad.net Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp