Risks
Advisories
Browse
or
or
Ubuntu Security Notice - keystone vulnerabilities (USN-1641-1)
==========================================================================
Ubuntu Security Notice USN-1641-1
November 28, 2012

keystone vulnerabilities
==========================================================================

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

- Ubuntu 12.10
- Ubuntu 12.04 LTS

Summary:

Keystone would allow unintended access to files over the network.

Software Description:
- keystone: OpenStack identity service

Details:

Vijaya Erukala discovered that Keystone did not properly invalidate
EC2-style credentials such that if credentials were removed from a tenant,
an authenticated and authorized user using those credentials may still be
allowed access beyond the account owner's expectations. (CVE-2012-5571)

It was discovered that Keystone did not properly implement token
expiration. A remote attacker could use this to continue to access an
account that is disabled or has a changed password. This issue was
previously fixed as CVE-2012-3426 but was reintroduced in Ubuntu 12.10.
(CVE-2012-5563)

Update instructions:

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

Ubuntu 12.10:
  python-keystone                 2012.2-0ubuntu1.2

Ubuntu 12.04 LTS:
  python-keystone                 2012.1+stable~20120824-a16a0ab9-0ubuntu2.3

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

References:
  http://www.ubuntu.com/usn/usn-1641-1
  CVE-2012-5563, CVE-2012-5571

Package Information:
  https://launchpad.net/ubuntu/+source/keystone/2012.2-0ubuntu1.2

https://launchpad.net/ubuntu/+source/keystone/2012.1+stable~20120824-a16a0ab9-0ubuntu
2.3




Spotlight

Whitepaper: Zero Trust approach to network security

Posted on 20 November 2014.  |  Zero Trust is an alternative security model that addresses the shortcomings of failing perimeter-centric strategies by removing the assumption of trust.


Weekly newsletter

Reading our newsletter every Monday will keep you up-to-date with security news.
  



Daily digest

Receive a daily digest of the latest security news.
  

DON'T
MISS

Fri, Nov 21st
    COPYRIGHT 1998-2014 BY HELP NET SECURITY.   // READ OUR PRIVACY POLICY // ABOUT US // ADVERTISE //