Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openstack | Keystone | < 15.0.1 |
| Canonical | Ubuntu Linux | 18.04 |
Related Weaknesses (CWE)
References
- http://www.openwall.com/lists/oss-security/2020/05/07/2Mailing ListThird Party Advisory
- https://bugs.launchpad.net/keystone/+bug/1872733PatchThird Party Advisory
- https://lists.apache.org/thread.html/re237267da268c690df5e1c6ea6a38a7fc11617725e
- https://lists.apache.org/thread.html/re4ffc55cd2f1b55a26e07c83b3c22c3fe4bae6054d
- 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 ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2020/05/07/2Mailing ListThird Party Advisory
- https://bugs.launchpad.net/keystone/+bug/1872733PatchThird Party Advisory
- https://lists.apache.org/thread.html/re237267da268c690df5e1c6ea6a38a7fc11617725e
- https://lists.apache.org/thread.html/re4ffc55cd2f1b55a26e07c83b3c22c3fe4bae6054d
- 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 ListThird Party Advisory
FAQ
What is CVE-2020-12691?
CVE-2020-12691 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 p...
How severe is CVE-2020-12691?
CVE-2020-12691 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-12691?
Check the references section above for vendor advisories and patch information. Affected products include: Openstack Keystone, Canonical Ubuntu Linux.