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.
Created attachment 1683810 [details] propossed patch Created attachment 1683810 [details] 0001-Disable-altering-credential-owner-attributes.patch-train
Created attachment 1683811 [details] propossed patch Created attachment 1683811 [details] 0001-Disable-altering-credential-owner-attributes.patch-master
References: https://launchpad.net/bugs/1872733
Created openstack-keystone tracking bugs for this issue: Affects: openstack-rdo [bug 1832401]
External References: https://security.openstack.org/ossa/OSSA-2020-004.html
Acknowledgments: Name: kay (OpenStack)
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
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
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
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
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
Statement: Red Hat Quay includes keystone-client, which is not vulnerable to this (server-side) vulnerability.