CVE-2020-12691

An issue was discovered in OpenStack Keystone before 15.0.1, and 16.0.0. Any authenticated user can create an EC2 credential for themselves for a project that they have a specified role on, and then perform an update to the credential user and project, allowing them to masquerade as another user. This potentially allows a malicious user to act as the admin on a project another user has the admin role on, which can effectively grant that user global admin privileges.

• CWE-863

• http://www.openwall.com/lists/oss-security/2020/05/07/2Mailing List, Third Party Advisory
• https://bugs.launchpad.net/keystone/+bug/1872733Patch, Third Party Advisory
• https://lists.apache.org/thread.html/re237267da268c690df5e1c6ea6a38a7fc11617725e8049490f58a6fa%40%3Ccommits.druid.apache.org%3E
• https://lists.apache.org/thread.html/re4ffc55cd2f1b55a26e07c83b3c22c3fe4bae6054d000a57fb48d8c2%40%3Ccommits.druid.apache.org%3E
• https://security.openstack.org/ossa/OSSA-2020-004.htmlVendor Advisory
• https://usn.ubuntu.com/4480-1/Third Party Advisory
• https://www.openwall.com/lists/oss-security/2020/05/06/5Mailing List, Third Party Advisory
• http://www.openwall.com/lists/oss-security/2020/05/07/2Mailing List, Third Party Advisory
• https://bugs.launchpad.net/keystone/+bug/1872733Patch, Third Party Advisory
• https://lists.apache.org/thread.html/re237267da268c690df5e1c6ea6a38a7fc11617725e8049490f58a6fa%40%3Ccommits.druid.apache.org%3E
• https://lists.apache.org/thread.html/re4ffc55cd2f1b55a26e07c83b3c22c3fe4bae6054d000a57fb48d8c2%40%3Ccommits.druid.apache.org%3E
• https://security.openstack.org/ossa/OSSA-2020-004.htmlVendor Advisory
• https://usn.ubuntu.com/4480-1/Third Party Advisory
• https://www.openwall.com/lists/oss-security/2020/05/06/5Mailing List, Third Party Advisory

Published

May 7, 2020

Last Modified

Jun 17, 2026

Status

Modified

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