Debian Security Advisory DSA 3613-1 (libvirt - security update)

2016-07-02T00:00:00
ID OPENVAS:1361412562310703613
Type openvas
Reporter Copyright (c) 2016 Greenbone Networks GmbH http://greenbone.net
Modified 2019-03-18T00:00:00

Description

Vivian Zhang and Christoph Anton Mitterer discovered that setting an empty VNC password does not work as documented in Libvirt, a virtualisation abstraction library. When the password on a VNC server is set to the empty string, authentication on the VNC server will be disabled, allowing any user to connect, despite the documentation declaring that setting an empty password for the VNC server prevents all client connections. With this update the behaviour is enforced by setting the password expiration to now .

                                        
                                            # OpenVAS Vulnerability Test
# $Id: deb_3613.nasl 14279 2019-03-18 14:48:34Z cfischer $
# Auto-generated from advisory DSA 3613-1 using nvtgen 1.0
# Script version: 1.0
#
# Author:
# Greenbone Networks
#
# Copyright:
# Copyright (c) 2016 Greenbone Networks GmbH http://greenbone.net
# Text descriptions are largely excerpted from the referenced
# advisory, and are Copyright (c) the respective author(s)
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
#

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.703613");
  script_version("$Revision: 14279 $");
  script_cve_id("CVE-2016-5008");
  script_name("Debian Security Advisory DSA 3613-1 (libvirt - security update)");
  script_tag(name:"last_modification", value:"$Date: 2019-03-18 15:48:34 +0100 (Mon, 18 Mar 2019) $");
  script_tag(name:"creation_date", value:"2016-07-02 00:00:00 +0200 (Sat, 02 Jul 2016)");
  script_tag(name:"cvss_base", value:"4.3");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:N/I:P/A:N");
  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"package");

  script_xref(name:"URL", value:"http://www.debian.org/security/2016/dsa-3613.html");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (c) 2016 Greenbone Networks GmbH http://greenbone.net");
  script_family("Debian Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/debian_linux", "ssh/login/packages", re:"ssh/login/release=DEB8");
  script_tag(name:"affected", value:"libvirt on Debian Linux");
  script_tag(name:"solution", value:"For the stable distribution (jessie),
this problem has been fixed in version 1.2.9-9+deb8u3.

For the unstable distribution (sid), this problem has been fixed in
version 2.0.0-1.

We recommend that you upgrade your libvirt packages.");
  script_tag(name:"summary", value:"Vivian Zhang and Christoph Anton
Mitterer discovered that setting an empty VNC password does not work as documented
in Libvirt, a virtualisation abstraction library. When the password on a VNC
server is set to the empty string, authentication on the VNC server will be
disabled, allowing any user to connect, despite the documentation
declaring that setting an empty password for the VNC server prevents all
client connections. With this update the behaviour is enforced by
setting the password expiration to now
.");
  script_tag(name:"vuldetect", value:"This check tests the installed software
version using the apt package manager.");

  exit(0);
}

include("revisions-lib.inc");
include("pkg-lib-deb.inc");

res = "";
report = "";
if((res = isdpkgvuln(pkg:"libvirt-bin", ver:"1.2.9-9+deb8u3", rls:"DEB8")) != NULL) {
  report += res;
}
if((res = isdpkgvuln(pkg:"libvirt-clients", ver:"1.2.9-9+deb8u3", rls:"DEB8")) != NULL) {
  report += res;
}
if((res = isdpkgvuln(pkg:"libvirt-daemon", ver:"1.2.9-9+deb8u3", rls:"DEB8")) != NULL) {
  report += res;
}
if((res = isdpkgvuln(pkg:"libvirt-daemon-system", ver:"1.2.9-9+deb8u3", rls:"DEB8")) != NULL) {
  report += res;
}
if((res = isdpkgvuln(pkg:"libvirt-dev", ver:"1.2.9-9+deb8u3", rls:"DEB8")) != NULL) {
  report += res;
}
if((res = isdpkgvuln(pkg:"libvirt-doc", ver:"1.2.9-9+deb8u3", rls:"DEB8")) != NULL) {
  report += res;
}
if((res = isdpkgvuln(pkg:"libvirt-sanlock", ver:"1.2.9-9+deb8u3", rls:"DEB8")) != NULL) {
  report += res;
}
if((res = isdpkgvuln(pkg:"libvirt0", ver:"1.2.9-9+deb8u3", rls:"DEB8")) != NULL) {
  report += res;
}
if((res = isdpkgvuln(pkg:"libvirt0-dbg", ver:"1.2.9-9+deb8u3", rls:"DEB8")) != NULL) {
  report += res;
}

if(report != "") {
  security_message(data:report);
} else if (__pkg_match) {
  exit(99);
}