Ubuntu 6.06 LTS / 7.10 / 8.04 LTS / 8.10 : vm-builder vulnerability (USN-670-1)

Ubuntu Security Notice (C) 2008-2013 Canonical, Inc. / NASL script (C) 2009-2013 Tenable Network Security, Inc.


Synopsis :

The remote Ubuntu host is missing one or more security-related patches.

Description :

Mathias Gug discovered that vm-builder improperly set the root
password when creating virtual machines. An attacker could exploit
this to gain root privileges to the virtual machine by using a
predictable password.

This vulnerability only affects virtual machines created with
vm-builder under Ubuntu 8.10, and does not affect native Ubuntu
installations. An update was made to the shadow package to detect
vulnerable systems and disable password authentication for the root
account. Vulnerable virtual machines which an attacker has access to
should be considered compromised, and appropriate actions taken to
secure the machine.

Solution :

Update the affected packages.

Risk factor :

High / CVSS Base Score : 7.2
(CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C)

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 37886 ()

Bugtraq ID:

CVE ID: CVE-2008-5103
CVE-2008-5104