CVE-2020-12691
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 2:17.0.0~rc2-1 |
| sid | Fixed | 2:17.0.0~rc2-1 |
| forky | Fixed | 2:17.0.0~rc2-1 |
| bullseye | Fixed | 2:17.0.0~rc2-1 |
| bookworm | Fixed | 2:17.0.0~rc2-1 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2020-12691
- https://github.com/openstack/keystone/commit/37e9907a176dad6843819b1bec4946c3aecc4548
- https://github.com/openstack/keystone/commit/40cbb7bebd50276412daa1981ff5a7c7b3b899a5
- https://github.com/openstack/keystone/commit/95b2bbeab113d9f04d1c81f7f1b48bf692bce979
- https://bugs.launchpad.net/keystone/+bug/1872733
- https://github.com/openstack/keystone
- https://github.com/pypa/advisory-database/tree/main/vulns/keystone/PYSEC-2020-55.yaml
- 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://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://usn.ubuntu.com/4480-1/
- https://www.suse.com/security/cve/CVE-2020-12691.html
- https://security-tracker.debian.org/tracker/CVE-2020-12691
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.