VNC Server Unauthenticated Access

This script is Copyright (C) 2007-2013 Tenable Network Security, Inc.


Synopsis :

The remote VNC server does not require authentication.

Description :

The VNC server installed on the remote host allows an attacker
to connect to the remote host as no authentication is required
to access this service.

** The VNC server sometimes sends the connected user to the XDM login
** screen. Unfortunately, Nessus cannot identify this situation.
** In such a case, it is not possible to go further without valid
** credentials and this alert may be ignored.

Solution :

Disable the No Authentication security type.

Risk factor :

High / CVSS Base Score : 7.5
(CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P)

Family: Misc.

Nessus Plugin ID: 26925 ()

Bugtraq ID:

CVE ID: