Photon OS 2.0: Linux PHSA-2021-2.0-0387

#%NASL_MIN_LEVEL 70300
##
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from VMware Security Advisory PHSA-2021-2.0-0387. The text
# itself is copyright (C) VMware, Inc.
##

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(153042);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/12/01");

  script_cve_id("CVE-2021-22543");

  script_name(english:"Photon OS 2.0: Linux PHSA-2021-2.0-0387");

  script_set_attribute(attribute:"synopsis", value:
"The remote PhotonOS host is missing multiple security updates.");
  script_set_attribute(attribute:"description", value:
"An update of the linux package has been released.

  - An issue was discovered in Linux: KVM through Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass
    RO checks and can lead to pages being freed while still accessible by the VMM and guest. This allows users
    with the ability to start and control a VM to read/write random pages of memory and can result in local
    privilege escalation. (CVE-2021-22543)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://github.com/vmware/photon/wiki/Security-Updates-2-387.md");
  script_set_attribute(attribute:"solution", value:
"Update the affected Linux packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-22543");

  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:"2021/05/26");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/09/02");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/09/07");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:vmware:photonos:linux");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:vmware:photonos:2.0");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2021-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/PhotonOS/release", "Host/PhotonOS/rpm-list");

  exit(0);
}

include('audit.inc');
include('global_settings.inc');
include('rpm.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);

var release = get_kb_item('Host/PhotonOS/release');
if (isnull(release) || release !~ "^VMware Photon") audit(AUDIT_OS_NOT, 'PhotonOS');
if (release !~ "^VMware Photon (?:Linux|OS) 2\.0(\D|$)") audit(AUDIT_OS_NOT, 'PhotonOS 2.0');

if (!get_kb_item('Host/PhotonOS/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);

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, 'PhotonOS', cpu);

var flag = 0;

if (rpm_check(release:'PhotonOS-2.0', cpu:'x86_64', reference:'linux-4.9.276-2.ph2')) flag++;
if (rpm_check(release:'PhotonOS-2.0', cpu:'x86_64', reference:'linux-aws-4.9.276-2.ph2')) flag++;
if (rpm_check(release:'PhotonOS-2.0', cpu:'x86_64', reference:'linux-aws-devel-4.9.276-2.ph2')) flag++;
if (rpm_check(release:'PhotonOS-2.0', cpu:'x86_64', reference:'linux-aws-docs-4.9.276-2.ph2')) flag++;
if (rpm_check(release:'PhotonOS-2.0', cpu:'x86_64', reference:'linux-aws-drivers-gpu-4.9.276-2.ph2')) flag++;
if (rpm_check(release:'PhotonOS-2.0', cpu:'x86_64', reference:'linux-aws-oprofile-4.9.276-2.ph2')) flag++;
if (rpm_check(release:'PhotonOS-2.0', cpu:'x86_64', reference:'linux-aws-sound-4.9.276-2.ph2')) flag++;
if (rpm_check(release:'PhotonOS-2.0', cpu:'x86_64', reference:'linux-devel-4.9.276-2.ph2')) flag++;
if (rpm_check(release:'PhotonOS-2.0', cpu:'x86_64', reference:'linux-docs-4.9.276-2.ph2')) flag++;
if (rpm_check(release:'PhotonOS-2.0', cpu:'x86_64', reference:'linux-drivers-gpu-4.9.276-2.ph2')) flag++;
if (rpm_check(release:'PhotonOS-2.0', cpu:'x86_64', reference:'linux-esx-4.9.276-2.ph2')) flag++;
if (rpm_check(release:'PhotonOS-2.0', cpu:'x86_64', reference:'linux-esx-devel-4.9.276-2.ph2')) flag++;
if (rpm_check(release:'PhotonOS-2.0', cpu:'x86_64', reference:'linux-esx-docs-4.9.276-2.ph2')) flag++;
if (rpm_check(release:'PhotonOS-2.0', cpu:'x86_64', reference:'linux-oprofile-4.9.276-2.ph2')) flag++;
if (rpm_check(release:'PhotonOS-2.0', cpu:'x86_64', reference:'linux-secure-4.9.276-2.ph2')) flag++;
if (rpm_check(release:'PhotonOS-2.0', cpu:'x86_64', reference:'linux-secure-devel-4.9.276-2.ph2')) flag++;
if (rpm_check(release:'PhotonOS-2.0', cpu:'x86_64', reference:'linux-secure-docs-4.9.276-2.ph2')) flag++;
if (rpm_check(release:'PhotonOS-2.0', cpu:'x86_64', reference:'linux-secure-lkcm-4.9.276-2.ph2')) flag++;
if (rpm_check(release:'PhotonOS-2.0', cpu:'x86_64', reference:'linux-sound-4.9.276-2.ph2')) flag++;
if (rpm_check(release:'PhotonOS-2.0', cpu:'x86_64', reference:'linux-tools-4.9.276-2.ph2')) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'linux');
}