GHSA-chgw-36xv-47cw

OpenStack Keystone EC2 and/or credential endpoints are not protected from a scoped context

Source: GitHub Advisory Database (reviewed) High CVE-2020-12689

Packages

Ecosystem	Package	Affected	Fixed in
PyPI	keystone	< 15.0.1	15.0.1
PyPI	keystone	>= 16.0.0, < 16.0.1	16.0.1

Details

As written in the advisory (Markdown source, shown as plain text).

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.

References

External links from the advisory. They lead to third-party sites.

https://nvd.nist.gov/vuln/detail/CVE-2020-12689 advisory
https://github.com/openstack/keystone/commit/37e9907a176dad6843819b1bec4946c3aecc4548 web
https://bugs.launchpad.net/keystone/+bug/1872735 web
https://github.com/openstack/keystone package
https://github.com/pypa/advisory-database/tree/main/vulns/keystone/PYSEC-2020-53.yaml web
https://lists.apache.org/thread.html/re4ffc55cd2f1b55a26e07c83b3c22c3fe4bae6054d000a57fb48d8c2@%3Ccommits.druid.apache.org%3E web
https://security.openstack.org/ossa/OSSA-2020-004.html web
https://usn.ubuntu.com/4480-1 web
https://www.openwall.com/lists/oss-security/2020/05/06/5 web
http://www.openwall.com/lists/oss-security/2020/05/07/2 web