Vulnerability Details 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.036
EPSS Ranking 87.3%
CVSS Severity
CVSS v3 Score 8.8
CVSS v2 Score 6.5
References
- http://www.openwall.com/lists/oss-security/2020/05/07/2
- https://bugs.launchpad.net/keystone/+bug/1872733
- 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.html
- https://usn.ubuntu.com/4480-1/
- https://www.openwall.com/lists/oss-security/2020/05/06/5
- http://www.openwall.com/lists/oss-security/2020/05/07/2
- https://bugs.launchpad.net/keystone/+bug/1872733
- 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.html
- https://usn.ubuntu.com/4480-1/
- https://www.openwall.com/lists/oss-security/2020/05/06/5
Products affected by CVE-2020-12691
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cpe:2.3:a:openstack:keystone:-
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cpe:2.3:a:openstack:keystone:10.0.0
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cpe:2.3:a:openstack:keystone:10.0.1
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cpe:2.3:a:openstack:keystone:10.0.2
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cpe:2.3:a:openstack:keystone:10.0.3
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cpe:2.3:a:openstack:keystone:11.0.0
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cpe:2.3:a:openstack:keystone:11.0.1
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cpe:2.3:a:openstack:keystone:11.0.2
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cpe:2.3:a:openstack:keystone:11.0.3
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cpe:2.3:a:openstack:keystone:11.0.4
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cpe:2.3:a:openstack:keystone:12.0.0
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cpe:2.3:a:openstack:keystone:12.0.1
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cpe:2.3:a:openstack:keystone:12.0.2
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cpe:2.3:a:openstack:keystone:12.0.3
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cpe:2.3:a:openstack:keystone:13.0.0
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cpe:2.3:a:openstack:keystone:13.0.1
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cpe:2.3:a:openstack:keystone:13.0.2
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cpe:2.3:a:openstack:keystone:14.0.0
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cpe:2.3:a:openstack:keystone:14.0.1
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cpe:2.3:a:openstack:keystone:14.1.0
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cpe:2.3:a:openstack:keystone:15.0.0
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cpe:2.3:a:openstack:keystone:16.0.0
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cpe:2.3:a:openstack:keystone:8.0.0
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cpe:2.3:a:openstack:keystone:8.0.1
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cpe:2.3:a:openstack:keystone:8.0.2
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cpe:2.3:a:openstack:keystone:8.1.0
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cpe:2.3:a:openstack:keystone:8.1.2
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cpe:2.3:a:openstack:keystone:9.0.0
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cpe:2.3:a:openstack:keystone:9.0.1
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cpe:2.3:a:openstack:keystone:9.0.2
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cpe:2.3:a:openstack:keystone:9.1.0
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cpe:2.3:a:openstack:keystone:9.2.0
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cpe:2.3:a:openstack:keystone:9.3.0
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cpe:2.3:o:canonical:ubuntu_linux:18.04