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Ubuntu Security Notice USN-1552-1

Ubuntu Security Notice USN-1552-1
Posted Sep 4, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1552-1 - Dolph Mathews discovered that OpenStack Keystone did not properly restrict to administrative users the ability to update users' tenants. A remote attacker that can reach the administrative API can use this to add any user to any tenant. Derek Higgins discovered that OpenStack Keystone did not properly implement token expiration. A remote attacker could use this to continue to access an account that has been disabled or has a changed password. Various other issues were also addressed.

tags | advisory, remote
systems | linux, ubuntu
advisories | CVE-2012-3542, CVE-2012-3426, CVE-2012-3426, CVE-2012-3542
MD5 | 9d1554560baa4d5f03dccdda1cdd7f4c

Ubuntu Security Notice USN-1552-1

Change Mirror Download
Content-Disposition: inline

==========================================================================Ubuntu Security Notice USN-1552-1
September 03, 2012

keystone vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 12.04 LTS

Summary:

Two security issues were fixed in OpenStack Keystone.

Software Description:
- keystone: OpenStack identity service

Details:

Dolph Mathews discovered that OpenStack Keystone did not properly
restrict to administrative users the ability to update users'
tenants. A remote attacker that can reach the administrative API can
use this to add any user to any tenant. (CVE-2012-3542)

Derek Higgins discovered that OpenStack Keystone did not properly
implement token expiration. A remote attacker could use this to
continue to access an account that has been disabled or has a changed
password. (CVE-2012-3426)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 12.04 LTS:
keystone 2012.1+stable~20120824-a16a0ab9-0ubuntu2.1
python-keystone 2012.1+stable~20120824-a16a0ab9-0ubuntu2.1

In general, a standard system update will make all the necessary changes.

References:
http://www.ubuntu.com/usn/usn-1552-1
CVE-2012-3426, CVE-2012-3542

Package Information:
https://launchpad.net/ubuntu/+source/keystone/2012.1+stable~20120824-a16a0ab9-0ubuntu2.1

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