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Home >> Browse Vulnerability Assessment Database >> Gentoo Local Security Checks >> [GLSA-200608-05] LibVNCServer: Authentication bypass

Vulnerability Assessment Details

[GLSA-200608-05] LibVNCServer: Authentication bypass

Vulnerability Assessment Summary
LibVNCServer: Authentication bypass

Detailed Explanation for this Vulnerability Assessment
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

A possible hacker could use this vulnerability to gain unauthorized access
with the rights of the user running the VNC server.

Workaround

There is no known workaround at this time.

References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-2450

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

Network Security Threat Level: High

Networks Security ID:

Vulnerability Assessment Copyright: (C) 2006 Michel Arboi

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