Ubuntu 12.10 / 13.04 : keystone vulnerabilities (USN-2002-1)

Ubuntu Security Notice (C) 2013-2016 Canonical, Inc. / NASL script (C) 2013-2016 Tenable Network Security, Inc.


Synopsis :

The remote Ubuntu host is missing a security-related patch.

Description :

Chmouel Boudjnah discovered that Keystone did not properly invalidate
user tokens when a tenant was disabled which allowed an authenticated
user to retain access via the token. (CVE-2013-4222)

Kieran Spear discovered that Keystone did not properly verify PKI
tokens when performing revocation when using the memcache and KVS
backends. An authenticated attacker could exploit this to bypass
intended access restrictions. (CVE-2013-4294).

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.

Solution :

Update the affected python-keystone package.

Risk factor :

Medium / CVSS Base Score : 6.5
(CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:P)
CVSS Temporal Score : 5.7
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : true

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 70581 ()

Bugtraq ID: 61725
62331

CVE ID: CVE-2013-4222
CVE-2013-4294