USN-2061-1: OpenStack Keystone vulnerability
19 December 2013
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 13.10
Keystone access controls could be circumvented via EC2-style tokens.
- keystone - OpenStack identity service
Steven Hardy discovered that Keystone did not properly enforce trusts when using the ec2tokens API. An authenticated attacker could exploit this to retrieve a token not scoped to the trust and elevate privileges to the trustor’s roles.
The problem can be corrected by updating your system to the following package versions:
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.