# CVE-2020-12691: OpenStack Keystone V3 /credentials endpoint policy logic allows to change credentials owner or target project ID

Source: https://junglewise.ai/threats/cve-2020-12691-openstack-keystone-v3-credentials-endpoint-policy-logic-allows-to  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2020-05-07  
License: CC BY 4.0 with a link back

CVE-2020-12691 · Severity: low · CVSS 3.1 · Published 2020-05-07

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.

Technologies: [keystone (PyPI)](https://junglewise.ai/threats/technologies/keystone). Vendors: [PyPI](https://junglewise.ai/threats/vendors/pypi).

## Quick answers

**Is CVE-2020-12691 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2020-12691 being exploited in the wild.

**How severe is CVE-2020-12691?** Low severity, with a CVSS score of 3.1, published 7 May 2020.

**Which products and versions are affected?** keystone (PyPI) ECOSYSTEM:introduced=0,fixed=15.0.1.

**Is there a fix for CVE-2020-12691?** Yes. keystone (PyPI): upgrade to 15.0.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2020-12691?** Check whether you run keystone (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- keystone (PyPI): upgrade to 15.0.1 or later

  ```sh
  pip install "keystone>=15.0.1"
  ```


## Affected products

- keystone (PyPI) ECOSYSTEM:introduced=0,fixed=15.0.1

## Identifiers

- CVE-2020-12691
- GHSA-4427-7f3w-mqv6
- PYSEC-2020-55

## Related threats

- [PYSEC-2026-2549 - OpenStack Identity Keystone and keystonemiddleware Insufficiently Protected Credentials](https://junglewise.ai/threats/cve-2015-7546-openstack-identity-keystone-and-keystonemiddleware-insufficiently)
- [PYSEC-2026-830 - OpenStack Keystone allows information disclosure during account locking](https://junglewise.ai/threats/cve-2021-38155-openstack-keystone-allows-information-disclosure-during-account)
- [PYSEC-2026-831 - OpenStack Identity Keystone Privilege Escalation vulnerability](https://junglewise.ai/threats/cve-2013-4477-openstack-identity-keystone-privilege-escalation-vulnerability)
- [PYSEC-2026-833 - OpenStack Keystone does not invalidate existing tokens when granting or revoking roles](https://junglewise.ai/threats/cve-2012-4413-openstack-keystone-does-not-invalidate-existing-tokens-when)
- [PYSEC-2026-832 - OpenStack Keystone Improper Authentication vulnerability](https://junglewise.ai/threats/cve-2012-4456-openstack-keystone-improper-authentication-vulnerability)