high8.8
CVE-2020-12691
OpenStack Keystone V3 /credentials endpoint policy logic allows to change credentials owner or target project ID
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| pip | keystone | < 15.0.1 | 15.0.1 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Openstack | Keystone | before 15.0.1 Version 16.0.0 |
| Canonical | Ubuntu Linux | Version 18.04 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- 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
- https://github.com/advisories/GHSA-4427-7f3w-mqv6
- https://nvd.nist.gov/vuln/detail/CVE-2020-12691
- https://lists.apache.org/thread.html/re237267da268c690df5e1c6ea6a38a7fc11617725e8049490f58a6fa@%3Ccommits.druid.apache.org%3E
- https://lists.apache.org/thread.html/re4ffc55cd2f1b55a26e07c83b3c22c3fe4bae6054d000a57fb48d8c2@%3Ccommits.druid.apache.org%3E
- https://github.com/openstack/keystone/commit/37e9907a176dad6843819b1bec4946c3aecc4548
- https://usn.ubuntu.com/4480-1
- https://github.com/openstack/keystone/commit/40cbb7bebd50276412daa1981ff5a7c7b3b899a5
- https://github.com/openstack/keystone/commit/95b2bbeab113d9f04d1c81f7f1b48bf692bce979
- https://github.com/pypa/advisory-database/tree/main/vulns/keystone/PYSEC-2020-55.yaml