Ubuntu 12.10 / 13.04 : keystone vulnerabilities (USN-1875-1)

Ubuntu Security Notice (C) 2013-2014 Canonical, Inc. / NASL script (C) 2013-2014 Tenable Network Security, Inc.


Synopsis :

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

Description :

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.
(CVE-2013-2104)

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.
(CVE-2013-2157).

Solution :

Update the affected python-keystone package.

Risk factor :

Medium / CVSS Base Score : 5.5
(CVSS2#AV:N/AC:L/Au:S/C:N/I:P/A:P)
CVSS Temporal Score : 4.5
(CVSS2#E:F/RL:OF/RC:C)
Public Exploit Available : true

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 66893 ()

Bugtraq ID: 60193
60545

CVE ID: CVE-2013-2104
CVE-2013-2157