Bug 1337079 (CVE-2016-4911) - CVE-2016-4911 openstack-keystone: Incorrect Audit IDs in Keystone Fernet Tokens can result in revocation bypass
Summary: CVE-2016-4911 openstack-keystone: Incorrect Audit IDs in Keystone Fernet Toke...
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2016-4911
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1337345 1337346
Blocks: 1337081
TreeView+ depends on / blocked
 
Reported: 2016-05-18 08:59 UTC by Andrej Nemec
Modified: 2019-09-29 13:49 UTC (History)
32 users (show)

Fixed In Version:
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Environment:
Last Closed: 2016-08-11 23:15:19 UTC
Embargoed:

Attachments (Terms of Use)
mitaka patch (4.27 KB, patch)
2016-06-02 03:40 UTC, Garth Mollett 		no flags Details | Diff
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Description Andrej Nemec 2016-05-18 08:59:40 UTC 
A vulnerability was found 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 it's individual audit_id. Only deployments with Keystone configured to use Fernet tokens are impacted.

References:

http://seclists.org/oss-sec/2016/q2/358
https://bugs.launchpad.net/keystone/+bug/1577558
Comment 2 Garth Mollett 2016-06-02 03:40:45 UTC 
Created attachment 1163873 [details]
mitaka patch
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