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nessusThis script is Copyright (C) 2021-2023 and is owned by Tenable, Inc. or an Affiliate thereof.PHOTONOS_PHSA-2021-4_0-0095_LINUX.NASL
HistorySep 07, 2021 - 12:00 a.m.

Photon OS 4.0: Linux PHSA-2021-4.0-0095

2021-09-0700:00:00
This script is Copyright (C) 2021-2023 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
94

7.2 High

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

8.1 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

40.6%

An update of the linux package has been released.

  • arch/powerpc/kvm/book3s_rtas.c in the Linux kernel through 5.13.5 on the powerpc platform allows KVM guest OS users to cause host OS memory corruption via rtas_args.nargs, aka CID-f62f3c20647e. (CVE-2021-37576)

  • In kernel/bpf/hashtab.c in the Linux kernel through 5.13.8, there is an integer overflow and out-of-bounds write when many elements are placed in a single bucket. NOTE: exploitation might be impractical without the CAP_SYS_ADMIN capability. (CVE-2021-38166)

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

#%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-2021-4.0-0095. The text
# itself is copyright (C) VMware, Inc.
##

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

if (description)
{
  script_id(153035);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/12/01");

  script_cve_id("CVE-2021-37576", "CVE-2021-38166");

  script_name(english:"Photon OS 4.0: Linux PHSA-2021-4.0-0095");

  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.

  - arch/powerpc/kvm/book3s_rtas.c in the Linux kernel through 5.13.5 on the powerpc platform allows KVM guest
    OS users to cause host OS memory corruption via rtas_args.nargs, aka CID-f62f3c20647e. (CVE-2021-37576)

  - In kernel/bpf/hashtab.c in the Linux kernel through 5.13.8, there is an integer overflow and out-of-bounds
    write when many elements are placed in a single bucket. NOTE: exploitation might be impractical without
    the CAP_SYS_ADMIN capability. (CVE-2021-38166)

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-4.0-95.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:C/I:C/A:C");
  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-2021-37576");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2021-38166");

  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:"2021/07/26");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/09/03");
  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:4.0");
  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) 4\.0(\D|$)") audit(AUDIT_OS_NOT, 'PhotonOS 4.0');

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-4.0', cpu:'x86_64', reference:'linux-5.10.61-1.ph4')) flag++;
if (rpm_check(release:'PhotonOS-4.0', reference:'linux-api-headers-5.10.61-1.ph4')) flag++;
if (rpm_check(release:'PhotonOS-4.0', cpu:'x86_64', reference:'linux-aws-5.10.61-1.ph4')) flag++;
if (rpm_check(release:'PhotonOS-4.0', cpu:'x86_64', reference:'linux-aws-devel-5.10.61-1.ph4')) flag++;
if (rpm_check(release:'PhotonOS-4.0', cpu:'x86_64', reference:'linux-aws-docs-5.10.61-1.ph4')) flag++;
if (rpm_check(release:'PhotonOS-4.0', cpu:'x86_64', reference:'linux-aws-drivers-gpu-5.10.61-1.ph4')) flag++;
if (rpm_check(release:'PhotonOS-4.0', cpu:'x86_64', reference:'linux-aws-oprofile-5.10.61-1.ph4')) flag++;
if (rpm_check(release:'PhotonOS-4.0', cpu:'x86_64', reference:'linux-aws-sound-5.10.61-1.ph4')) flag++;
if (rpm_check(release:'PhotonOS-4.0', cpu:'x86_64', reference:'linux-devel-5.10.61-1.ph4')) flag++;
if (rpm_check(release:'PhotonOS-4.0', cpu:'x86_64', reference:'linux-docs-5.10.61-1.ph4')) flag++;
if (rpm_check(release:'PhotonOS-4.0', cpu:'x86_64', reference:'linux-drivers-gpu-5.10.61-1.ph4')) flag++;
if (rpm_check(release:'PhotonOS-4.0', cpu:'x86_64', reference:'linux-drivers-intel-sgx-5.10.61-1.ph4')) flag++;
if (rpm_check(release:'PhotonOS-4.0', cpu:'x86_64', reference:'linux-drivers-sound-5.10.61-1.ph4')) flag++;
if (rpm_check(release:'PhotonOS-4.0', cpu:'x86_64', reference:'linux-esx-5.10.61-1.ph4')) flag++;
if (rpm_check(release:'PhotonOS-4.0', cpu:'x86_64', reference:'linux-esx-devel-5.10.61-1.ph4')) flag++;
if (rpm_check(release:'PhotonOS-4.0', cpu:'x86_64', reference:'linux-esx-docs-5.10.61-1.ph4')) flag++;
if (rpm_check(release:'PhotonOS-4.0', cpu:'x86_64', reference:'linux-oprofile-5.10.61-1.ph4')) flag++;
if (rpm_check(release:'PhotonOS-4.0', cpu:'x86_64', reference:'linux-python3-perf-5.10.61-1.ph4')) flag++;
if (rpm_check(release:'PhotonOS-4.0', cpu:'x86_64', reference:'linux-rt-5.10.61-1.ph4')) flag++;
if (rpm_check(release:'PhotonOS-4.0', cpu:'x86_64', reference:'linux-rt-devel-5.10.61-1.ph4')) flag++;
if (rpm_check(release:'PhotonOS-4.0', cpu:'x86_64', reference:'linux-rt-docs-5.10.61-1.ph4')) flag++;
if (rpm_check(release:'PhotonOS-4.0', cpu:'x86_64', reference:'linux-secure-5.10.61-1.ph4')) flag++;
if (rpm_check(release:'PhotonOS-4.0', cpu:'x86_64', reference:'linux-secure-devel-5.10.61-1.ph4')) flag++;
if (rpm_check(release:'PhotonOS-4.0', cpu:'x86_64', reference:'linux-secure-docs-5.10.61-1.ph4')) flag++;
if (rpm_check(release:'PhotonOS-4.0', cpu:'x86_64', reference:'linux-tools-5.10.61-1.ph4')) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    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');
}
VendorProductVersionCPE
vmwarephotonoslinuxp-cpe:/a:vmware:photonos:linux
vmwarephotonos4.0cpe:/o:vmware:photonos:4.0

7.2 High

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

8.1 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

40.6%