CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
90.6%
It was discovered that there was a password policy issue in libvirt, a library for interfacing with different virtualization systems.
Setting an empty graphics password is documented as a way to disable VNC/SPICE access, but QEMU does not always behave like that. VNC would happily accept the empty password. We enforce the behavior by setting password expiration to ‘now’.
For Debian 7 ‘Wheezy’, this issue has been fixed in libvirt version 0.9.12.3-1+deb7u2.
We recommend that you upgrade your libvirt packages.
NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-541-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(91921);
script_version("2.8");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/11");
script_cve_id("CVE-2016-5008");
script_name(english:"Debian DLA-541-1 : libvirt security update");
script_summary(english:"Checks dpkg output for the updated packages.");
script_set_attribute(
attribute:"synopsis",
value:"The remote Debian host is missing a security update."
);
script_set_attribute(
attribute:"description",
value:
"It was discovered that there was a password policy issue in libvirt, a
library for interfacing with different virtualization systems.
Setting an empty graphics password is documented as a way to disable
VNC/SPICE access, but QEMU does not always behave like that. VNC would
happily accept the empty password. We enforce the behavior by setting
password expiration to 'now'.
For Debian 7 'Wheezy', this issue has been fixed in libvirt version
0.9.12.3-1+deb7u2.
We recommend that you upgrade your libvirt packages.
NOTE: Tenable Network Security has extracted the preceding description
block directly from the DLA security advisory. Tenable has attempted
to automatically clean and format it as much as possible without
introducing additional issues."
);
script_set_attribute(
attribute:"see_also",
value:"https://lists.debian.org/debian-lts-announce/2016/07/msg00001.html"
);
script_set_attribute(
attribute:"see_also",
value:"https://packages.debian.org/source/wheezy/libvirt"
);
script_set_attribute(attribute:"solution", value:"Upgrade the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libvirt-bin");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libvirt-dev");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libvirt-doc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libvirt0");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libvirt0-dbg");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:python-libvirt");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0");
script_set_attribute(attribute:"patch_publication_date", value:"2016/07/01");
script_set_attribute(attribute:"plugin_publication_date", value:"2016/07/05");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2016-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"Debian Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");
exit(0);
}
include("audit.inc");
include("debian_package.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);
flag = 0;
if (deb_check(release:"7.0", prefix:"libvirt-bin", reference:"0.9.12.3-1+deb7u2")) flag++;
if (deb_check(release:"7.0", prefix:"libvirt-dev", reference:"0.9.12.3-1+deb7u2")) flag++;
if (deb_check(release:"7.0", prefix:"libvirt-doc", reference:"0.9.12.3-1+deb7u2")) flag++;
if (deb_check(release:"7.0", prefix:"libvirt0", reference:"0.9.12.3-1+deb7u2")) flag++;
if (deb_check(release:"7.0", prefix:"libvirt0-dbg", reference:"0.9.12.3-1+deb7u2")) flag++;
if (deb_check(release:"7.0", prefix:"python-libvirt", reference:"0.9.12.3-1+deb7u2")) flag++;
if (flag)
{
if (report_verbosity > 0) security_warning(port:0, extra:deb_report_get());
else security_warning(0);
exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
Vendor | Product | Version | CPE |
---|---|---|---|
debian | debian_linux | libvirt-bin | p-cpe:/a:debian:debian_linux:libvirt-bin |
debian | debian_linux | libvirt-dev | p-cpe:/a:debian:debian_linux:libvirt-dev |
debian | debian_linux | libvirt-doc | p-cpe:/a:debian:debian_linux:libvirt-doc |
debian | debian_linux | libvirt0 | p-cpe:/a:debian:debian_linux:libvirt0 |
debian | debian_linux | libvirt0-dbg | p-cpe:/a:debian:debian_linux:libvirt0-dbg |
debian | debian_linux | python-libvirt | p-cpe:/a:debian:debian_linux:python-libvirt |
debian | debian_linux | 7.0 | cpe:/o:debian:debian_linux:7.0 |
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
90.6%