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GLSA-200608-05 : LibVNCServer: Authentication bypass

high Nessus Plugin ID 22147

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.

Solution

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

See Also

https://security.gentoo.org/glsa/200608-05

Plugin Details

Severity: High

ID: 22147

File Name: gentoo_GLSA-200608-05.nasl

Version: 1.14

Type: local

Published: 8/4/2006

Updated: 1/6/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.8

CVSS v2

Risk Factor: High

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:libvncserver, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Patch Publication Date: 8/4/2006

Vulnerability Publication Date: 7/5/2006

Reference Information

CVE: CVE-2006-2450

GLSA: 200608-05