CVE-2016-5008 Information

Description

libvirt before 2.0.0 improperly disables password checking when the password on a VNC server is set to an empty string which allows remote attackers to bypass authentication and establish a VNC session by connecting to the server.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

http://lists.opensuse.org/opensuse-updates/2016-07/msg00054.html http://lists.opensuse.org/opensuse-updates/2016-07/msg00055.html http://lists.opensuse.org/opensuse-updates/2016-08/msg00024.html http://rhn.redhat.com/errata/RHSA-2016-2577.html http://security.libvirt.org/2016/0001.html http://www.debian.org/security/2016/dsa-3613 http://www.securityfocus.com/bid/91562 https://bugzilla.redhat.com/show_bug.cgi?id=1180092 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DZZMOMRXNPALA34XDF5NK363KDLAYSTL/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QTQF6LXKEEMJG4VOOCIAPJAD6ACBYP4W/ https://usn.ubuntu.com/3576-1/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8