Bug 971884 (CVE-2013-2157) - CVE-2013-2157 openstack-keystone: Authentication bypass when using LDAP backend
Summary: CVE-2013-2157 openstack-keystone: Authentication bypass when using LDAP backend
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2013-2157
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 972245 973812 974950 974951
Blocks: 971892 973859
TreeView+ depends on / blocked
 
Reported: 2013-06-07 13:39 UTC by Jan Lieskovsky
Modified: 2023-05-11 23:03 UTC (History)
13 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2013-08-09 03:28:13 UTC
Embargoed:

Attachments (Terms of Use)
Proposed upstream patch for the issue against master branch (3.29 KB, patch)
2013-06-07 13:43 UTC, Jan Lieskovsky 		no flags Details | Diff
Proposed upstream patch for the issue against grizzly branch (3.29 KB, patch)
2013-06-07 13:44 UTC, Jan Lieskovsky 		no flags Details | Diff
Proposed upstream patch for the issue against folsom branch (3.00 KB, patch)
2013-06-07 13:44 UTC, Jan Lieskovsky 		no flags Details | Diff
View All


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2013:0994 0 normal SHIPPED_LIVE Important: openstack-keystone security and bug fix update 2013-06-27 20:43:57 UTC
Red Hat Product Errata RHSA-2013:1083 0 normal SHIPPED_LIVE Important: openstack-keystone security update 2013-07-16 21:31:28 UTC

Description Jan Lieskovsky 2013-06-07 13:39:30 UTC 
A security flaw was found in the way Keystone, a Python implementation of the OpenStack identity service API, performed user authentication when the LDAP backend was used (previously user-provided empty LDAP password resulted into an anonymous LDAP bind to be performed, resulting into successful user authentication). A remote attacker could use this flaw to obtain unauthorized access to the OpenStack functionality (user account impersonation, retrieval of valid authentication tokens).

Note: This issue solely affects only Keystone configurations using the LDAP authentication backend.

Acknowledgements:

Red Hat would like to thank Thierry Carrez of OpenStack upstream for reporting this issue. Upstream acknowledges Jose Castro Leon of CERN as the original issue reporter.
Comment 2 Jan Lieskovsky 2013-06-07 13:43:25 UTC 
Created attachment 758168 [details]
Proposed upstream patch for the issue against master branch
Comment 3 Jan Lieskovsky 2013-06-07 13:44:16 UTC 
Created attachment 758169 [details]
Proposed upstream patch for the issue against grizzly branch
Comment 4 Jan Lieskovsky 2013-06-07 13:44:59 UTC 
Created attachment 758170 [details]
Proposed upstream patch for the issue against folsom branch
Comment 5 Jan Lieskovsky 2013-06-07 13:47:23 UTC 
Preliminary embargo date for this issue has been set up by OpenStack upstream to Thursday, 13-th of June 2013, 15:00 UTC time.
Comment 6 Jan Lieskovsky 2013-06-07 13:48:15 UTC 
This issue affects the versions of the openstack-keystone package, as shipped with Fedora release of 17, 18, Rawhide and Fedora EPEL-6.
Comment 7 Jan Lieskovsky 2013-06-07 13:56:44 UTC 
This issue did NOT affect the versions of the python-keystoneclient, as shipped with Fedora release of 17, 18, Rawhide and Fedora EPEL-6.
Comment 10 Jan Lieskovsky 2013-06-17 08:49:43 UTC 
Created openstack-keystone tracking bugs for this issue

Affects: fedora-all [bug 974950]
Affects: epel-6 [bug 974951]
Comment 11 errata-xmlrpc 2013-06-27 16:47:26 UTC 
This issue has been addressed in following products:

  OpenStack 3 for RHEL 6

Via RHSA-2013:0994 https://rhn.redhat.com/errata/RHSA-2013-0994.html
Comment 12 Fedora Update System 2013-07-12 19:37:20 UTC 
openstack-keystone-2012.2.4-5.el6 has been pushed to the Fedora EPEL 6 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 13 errata-xmlrpc 2013-07-16 17:31:48 UTC 
This issue has been addressed in following products:

  OpenStack Folsom for RHEL 6

Via RHSA-2013:1083 https://rhn.redhat.com/errata/RHSA-2013-1083.html
Comment 14 Fedora Update System 2013-07-20 09:31:51 UTC 
openstack-keystone-2013.1.2-3.fc19 has been pushed to the Fedora 19 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 15 Fedora Update System 2013-08-09 17:01:28 UTC 
openstack-keystone-2012.2.4-5.fc18 has been pushed to the Fedora 18 stable repository.  If problems still persist, please make note of it in this bug report.
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