GLSA-200608-05 : LibVNCServer: Authentication bypass

This script is Copyright (C) 2006-2014 Tenable Network Security, Inc.


Synopsis :

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

Description :

The remote host is affected by the vulnerability described in GLSA-200608-05
(LibVNCServer: Authentication bypass)

LibVNCServer fails to properly validate protocol types effectively
letting users decide what protocol to use, such as 'Type 1 - None'.
LibVNCServer will accept this security type, even if it is not offered
by the server.

Impact :

An attacker could use this vulnerability to gain unauthorized access
with the privileges of the user running the VNC server.

Workaround :

There is no known workaround at this time.

See also :

http://www.gentoo.org/security/en/glsa/glsa-200608-05.xml

Solution :

All LibVNCServer users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=net-libs/libvncserver-0.8.2'

Risk factor :

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

Family: Gentoo Local Security Checks

Nessus Plugin ID: 22147 (gentoo_GLSA-200608-05.nasl)

Bugtraq ID:

CVE ID: CVE-2006-2450