CVE-2020-12691
OpenStack Keystone V3 /credentials endpoint policy logic allows to change credentials owner or target project ID
8.8
HIGH
CVSS 3.1
EPSS 3.6%
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.
How to fix CVE-2020-12691
To remediate CVE-2020-12691, upgrade the affected package to a fixed version below.
- —upgrade to 2:17.0.0~rc2-1 or later
- —upgrade to 15.0.1 or later
- —upgrade to 15.0.1 or later
Is CVE-2020-12691 being exploited?
Low — EPSS is 3.6%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 2:17.0.0~rc2-1
- from 0, < 15.0.1
- from 0, < 15.0.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |