Comment 17 for bug 1064914

Revision history for this message
Thierry Carrez (ttx) wrote : Re: Removing user from a tenant isn't invalidating user access to tenant

Would be good to push an Essex backport for this as well -- CCing stable/essex team

Proposed impact description:

Title: EC2-style credentials invalidation issue
Reporter: Vijaya Erukala
Products: Keystone
Affects: All versions

Description:
Vijaya Erukala reported a vulnerability in Keystone EC2-style credentials invalidation: when a user is removed from a tenant, issued EC2-style credentials would continue to be valid for that tenant. An authenticated and authorized user could potentially leverage this vulnerability to extend his access beyond the account owner expectations. Only setups enabling EC2-style credentials (for example enabling EC2 API in Nova) are affected.