openstack/keystone · Security
OpenStack Keystone EC2 and/or credential endpoints are not protected from a scoped context
- GHSA ID
- GHSA-chgw-36xv-47cw
- CVE ID
- CVE-2020-12689
- Severity
- high
- Published
- Updated
- CVSS
- 8.8 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS v3
- 8.8 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS v4
- 8.7 · 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
Description
An issue was discovered in OpenStack Keystone before 15.0.1, and 16.0.0. Any user authenticated within a limited scope (trust/oauth/application credential) can create an EC2 credential with an escalated permission, such as obtaining admin while the user is on a limited viewer role. 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.
CWEs
- CWE-269 · Improper Privilege Management
References
- https://nvd.nist.gov/vuln/detail/CVE-2020-12689 ↗
- https://bugs.launchpad.net/keystone/+bug/1872735 ↗
- https://lists.apache.org/thread.html/re4ffc55cd2f1b55a26e07c83b3c22c3fe4bae6054d000a57fb48d8c2@%3Ccommits.druid.apache.org%3E ↗
- https://security.openstack.org/ossa/OSSA-2020-004.html ↗
- https://www.openwall.com/lists/oss-security/2020/05/06/5 ↗
- http://www.openwall.com/lists/oss-security/2020/05/07/2 ↗
- https://github.com/openstack/keystone/commit/37e9907a176dad6843819b1bec4946c3aecc4548 ↗
- https://usn.ubuntu.com/4480-1 ↗
- https://github.com/pypa/advisory-database/tree/main/vulns/keystone/PYSEC-2020-53.yaml ↗
- https://github.com/advisories/GHSA-chgw-36xv-47cw ↗