Ubuntu Security Notice (C) 2013-2016 Canonical, Inc. / NASL script (C) 2013-2016 Tenable Network Security, Inc.
The remote Ubuntu host is missing a security-related patch.
Eoghan Glynn and Alex Meade discovered that Keystone did not properly
perform expiry checks for the PKI tokens used in Keystone. If Keystone
were setup to use PKI tokens, a previously authenticated user could
continue to use a PKI token for longer than intended. This issue only
affected Ubuntu 12.10 which does not use PKI tokens by default.
Jose Castro Leon discovered that Keystone did not properly
authenticate users when using the LDAP backend. An attacker could
obtain valid tokens and impersonate other users by supplying an empty
password. By default, Ubuntu does not use the LDAP backend.
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.
Update the affected python-keystone package.
Risk factor :
Medium / CVSS Base Score : 5.5
CVSS Temporal Score : 4.8
Public Exploit Available : true