OAuth1 Access Token Role Assignment Issue in OpenStack Keystone

CVE-2020-12690

What is CVE-2020-12690?

A vulnerability exists in OpenStack Keystone that allows for the silent ignoring of role parameters in OAuth1 access tokens. When an OAuth1 access token is used to request a Keystone token, it inadvertently includes all role assignments associated with the user's project, regardless of the roles intended to be shared. This misconfiguration could potentially grant users escalated access to resources, allowing for operations that should be restricted based on the initial role permissions. Users of OpenStack Keystone are encouraged to update to recommended versions to mitigate this action.

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