Comment 40 for bug 1324592

Revision history for this message
Tristan Cacqueray (tristan-cacqueray) wrote : Re: Trust scope can be circumvented by chaining trusts

Thanks folks, I've updated the description with your comments,
Here is the impact description draft #3:

Title: Keystone privilege escalation through trust chained delegation
Reporter: Steven Hardy (Red Hat)
Products: Keystone
Versions: up to 2013.2.3, and 2014.1 to 2014.1.1

Description:
Steven Hardy from Red Hat reported a vulnerability in Keystone chained delegation. By creating a delegation from a trust or OAuth token, a trustee may abuse the identity impersonation against keystone and circumvent the enforced scope, resulting in potential elevated privileges to any of the trustor's projects and or roles. All Keystone deployments configured to enable trusts are affected, which has been the default since Grizzly.