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nessusThis script is Copyright (C) 2023 and is owned by Tenable, Inc. or an Affiliate thereof.DEBIAN_DSA-5493.NASL
HistorySep 11, 2023 - 12:00 a.m.

Debian DSA-5493-1 : open-vm-tools - security update

2023-09-1100:00:00
This script is Copyright (C) 2023 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
17
debian
security update
vulnerabilities
esxi host
vmware tools
authentication
confidentiality
integrity
guest virtual machine
privileges
vmware vsphere
nessus.

7.5 High

CVSS3

Attack Vector

ADJACENT

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

0.005 Low

EPSS

Percentile

76.5%

The remote Debian 11 / 12 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-5493 advisory.

  • A fully compromised ESXi host can force VMware Tools to fail to authenticate host-to-guest operations, impacting the confidentiality and integrity of the guest virtual machine. (CVE-2023-20867)

  • A malicious actor that has been granted Guest Operation Privileges https://docs.vmware.com/en/VMware- vSphere/8.0/vsphere-security/GUID-6A952214-0E5E-4CCF-9D2A-90948FF643EC.html in a target virtual machine may be able to elevate their privileges if that target virtual machine has been assigned a more privileged Guest Alias https://vdc-download.vmware.com/vmwb-repository/dcr- public/d1902b0e-d479-46bf-8ac9-cee0e31e8ec0/07ce8dbd- db48-4261-9b8f-c6d3ad8ba472/vim.vm.guest.AliasManager.html . (CVE-2023-20900)

Note that Nessus has not tested for these issues but has instead relied only on the application’s self-reported version number.

#%NASL_MIN_LEVEL 80900
#
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory dsa-5493. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('compat.inc');

if (description)
{
  script_id(181211);
  script_version("1.0");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/09/11");

  script_cve_id("CVE-2023-20867", "CVE-2023-20900");
  script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2023/07/14");

  script_name(english:"Debian DSA-5493-1 : open-vm-tools - security update");

  script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing one or more security-related updates.");
  script_set_attribute(attribute:"description", value:
"The remote Debian 11 / 12 host has packages installed that are affected by multiple vulnerabilities as referenced in the
dsa-5493 advisory.

  - A fully compromised ESXi host can force VMware Tools to fail to authenticate host-to-guest operations,
    impacting the confidentiality and integrity of the guest virtual machine. (CVE-2023-20867)

  - A malicious actor that has been granted Guest Operation Privileges https://docs.vmware.com/en/VMware-
    vSphere/8.0/vsphere-security/GUID-6A952214-0E5E-4CCF-9D2A-90948FF643EC.html in a target virtual machine
    may be able to elevate their privileges if that target virtual machine has been assigned a more privileged
    Guest Alias https://vdc-download.vmware.com/vmwb-repository/dcr-
    public/d1902b0e-d479-46bf-8ac9-cee0e31e8ec0/07ce8dbd-
    db48-4261-9b8f-c6d3ad8ba472/vim.vm.guest.AliasManager.html . (CVE-2023-20900)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1050970");
  # https://security-tracker.debian.org/tracker/source-package/open-vm-tools
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?a254e898");
  script_set_attribute(attribute:"see_also", value:"https://www.debian.org/security/2023/dsa-5493");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2023-20867");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2023-20900");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/bullseye/open-vm-tools");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/bookworm/open-vm-tools");
  script_set_attribute(attribute:"solution", value:
"Upgrade the open-vm-tools packages.

For the stable distribution (bookworm), these problems have been fixed in version 2");
  script_set_cvss_base_vector("CVSS2#AV:A/AC:H/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:F/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2023-20900");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2023/06/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/09/10");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/09/11");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:open-vm-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:open-vm-tools-containerinfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:open-vm-tools-desktop");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:open-vm-tools-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:open-vm-tools-salt-minion");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:open-vm-tools-sdmp");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:11.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:12.0");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Debian Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");

  exit(0);
}

include('debian_package.inc');

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);

var debian_release = get_kb_item('Host/Debian/release');
if ( isnull(debian_release) ) audit(AUDIT_OS_NOT, 'Debian');
debian_release = chomp(debian_release);
if (! preg(pattern:"^(11)\.[0-9]+|^(12)\.[0-9]+", string:debian_release)) audit(AUDIT_OS_NOT, 'Debian 11.0 / 12.0', 'Debian ' + debian_release);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Debian', cpu);

var pkgs = [
    {'release': '11.0', 'prefix': 'open-vm-tools', 'reference': '2:11.2.5-2+deb11u2'},
    {'release': '11.0', 'prefix': 'open-vm-tools-desktop', 'reference': '2:11.2.5-2+deb11u2'},
    {'release': '11.0', 'prefix': 'open-vm-tools-dev', 'reference': '2:11.2.5-2+deb11u2'},
    {'release': '11.0', 'prefix': 'open-vm-tools-sdmp', 'reference': '2:11.2.5-2+deb11u2'},
    {'release': '12.0', 'prefix': 'open-vm-tools', 'reference': '2:12.2.0-1+deb12u1'},
    {'release': '12.0', 'prefix': 'open-vm-tools-containerinfo', 'reference': '2:12.2.0-1+deb12u1'},
    {'release': '12.0', 'prefix': 'open-vm-tools-desktop', 'reference': '2:12.2.0-1+deb12u1'},
    {'release': '12.0', 'prefix': 'open-vm-tools-dev', 'reference': '2:12.2.0-1+deb12u1'},
    {'release': '12.0', 'prefix': 'open-vm-tools-salt-minion', 'reference': '2:12.2.0-1+deb12u1'},
    {'release': '12.0', 'prefix': 'open-vm-tools-sdmp', 'reference': '2:12.2.0-1+deb12u1'}
];

var flag = 0;
foreach package_array ( pkgs ) {
  var _release = NULL;
  var prefix = NULL;
  var reference = NULL;
  if (!empty_or_null(package_array['release'])) _release = package_array['release'];
  if (!empty_or_null(package_array['prefix'])) prefix = package_array['prefix'];
  if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
  if (_release && prefix && reference) {
    if (deb_check(release:_release, prefix:prefix, reference:reference)) flag++;
  }
}

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : deb_report_get()
  );
  exit(0);
}
else
{
  var tested = deb_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'open-vm-tools / open-vm-tools-containerinfo / open-vm-tools-desktop / etc');
}
VendorProductVersionCPE
debiandebian_linuxopen-vm-toolsp-cpe:/a:debian:debian_linux:open-vm-tools
debiandebian_linuxopen-vm-tools-containerinfop-cpe:/a:debian:debian_linux:open-vm-tools-containerinfo
debiandebian_linuxopen-vm-tools-desktopp-cpe:/a:debian:debian_linux:open-vm-tools-desktop
debiandebian_linuxopen-vm-tools-devp-cpe:/a:debian:debian_linux:open-vm-tools-dev
debiandebian_linuxopen-vm-tools-salt-minionp-cpe:/a:debian:debian_linux:open-vm-tools-salt-minion
debiandebian_linuxopen-vm-tools-sdmpp-cpe:/a:debian:debian_linux:open-vm-tools-sdmp
debiandebian_linux11.0cpe:/o:debian:debian_linux:11.0
debiandebian_linux12.0cpe:/o:debian:debian_linux:12.0

7.5 High

CVSS3

Attack Vector

ADJACENT

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

0.005 Low

EPSS

Percentile

76.5%