Bug 1830384 (CVE-2020-12691)

Summary: CVE-2020-12691 openstack-keystone: Credentials endpoint policy logic allows changing credential owner and target project ID
Product: [Other] Security Response Reporter: Laura Pardo <lpardo>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: aileenc, chazlett, dbecker, drieden, ggaughan, gmalinko, janstey, jjoyce, jochrist, jschluet, jwon, kbasil, lbragsta, lhh, lpeer, mburns, msiddiqu, nkinder, oblaut, sclewis, security-response-team, slinaber
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Keystone 15.0.1, Keystone 16.0.1 Doc Type: If docs needed, set a value
Doc Text:
A vulnerability was found in Keystone's EC2 credentials API. This flaw allows any authenticated user to create an EC2 credential for themselves for a project that they have a specified role, and then perform an update to the credential user and project, allowing them to masquerade as another user. This issue potentially allows the malicious user to act as the admin on a project another user has the admin role on, granting the user global admin privileges.
Story Points: ---
Clone Of: Environment:
Last Closed: 2020-06-24 17:20:24 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On: 1832401, 1831362, 1831363, 1831364, 1831365    
Bug Blocks: 1830398    
Attachments:
Description Flags
propossed patch
none
propossed patch none

Description Laura Pardo 2020-05-01 19:37:23 UTC
A vulnerability was found in Keystone's EC2 credentials API. Any authenticated user could create an EC2 credential for themselves for a project that they have a specified role on, then perform an update to the credential user and project, allowing them to masquerade as another user.
This potentially allows the malicious user to act as the admin on a project another user has the admin role on, which can effectively grant the user
global admin privileges.

Comment 1 Laura Pardo 2020-05-01 19:48:31 UTC
Created attachment 1683810 [details]
propossed patch

Created attachment 1683810 [details]
0001-Disable-altering-credential-owner-attributes.patch-train

Comment 2 Laura Pardo 2020-05-01 19:49:52 UTC
Created attachment 1683811 [details]
propossed patch

Created attachment 1683811 [details]
0001-Disable-altering-credential-owner-attributes.patch-master

Comment 4 msiddiqu 2020-05-01 21:38:13 UTC
References: 
 
https://launchpad.net/bugs/1872733

Comment 7 Nick Tait 2020-05-06 16:37:26 UTC
Created openstack-keystone tracking bugs for this issue:

Affects: openstack-rdo [bug 1832401]

Comment 10 Nick Tait 2020-05-07 19:48:37 UTC
External References:

https://security.openstack.org/ossa/OSSA-2020-004.html

Comment 15 Nick Tait 2020-05-14 01:11:08 UTC
Acknowledgments:

Name: kay (OpenStack)

Comment 16 errata-xmlrpc 2020-06-24 12:36:21 UTC
This issue has been addressed in the following products:

  Red Hat OpenStack Platform 13.0 (Queens)
  Red Hat OpenStack Platform 13.0 (Queens) for RHEL 7.6 EUS

Via RHSA-2020:2732 https://access.redhat.com/errata/RHSA-2020:2732

Comment 17 Product Security DevOps Team 2020-06-24 17:20:24 UTC
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2020-12691

Comment 18 errata-xmlrpc 2020-07-22 12:11:55 UTC
This issue has been addressed in the following products:

  Red Hat OpenStack Platform 10.0 (Newton)

Via RHSA-2020:3096 https://access.redhat.com/errata/RHSA-2020:3096

Comment 19 errata-xmlrpc 2020-07-22 12:40:10 UTC
This issue has been addressed in the following products:

  Red Hat OpenStack Platform 15.0 (Stein)

Via RHSA-2020:3102 https://access.redhat.com/errata/RHSA-2020:3102

Comment 20 errata-xmlrpc 2020-07-22 12:40:22 UTC
This issue has been addressed in the following products:

  Red Hat OpenStack Platform 16.0 (Train)

Via RHSA-2020:3105 https://access.redhat.com/errata/RHSA-2020:3105