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nessusThis script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.RHCOS-RHSA-2024-0948.NASL
HistoryFeb 28, 2024 - 12:00 a.m.

RHCOS 4 : OpenShift Container Platform 4.13.35 (RHSA-2024:0948)

2024-02-2800:00:00
This script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
8
rhcos
openshift
security update
cve-2022-41723
denial of service

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

6.7 Medium

AI Score

Confidence

High

0.024 Low

EPSS

Percentile

90.0%

The remote Red Hat Enterprise Linux CoreOS 4 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2024:0948 advisory.

  • A maliciously crafted HTTP/2 stream could cause excessive CPU consumption in the HPACK decoder, sufficient to cause a denial of service from a small number of small requests. (CVE-2022-41723)

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 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2024:0948. The text
# itself is copyright (C) Red Hat, Inc.
##

include('compat.inc');

if (description)
{
  script_id(191089);
  script_version("1.0");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/02/28");

  script_cve_id("CVE-2022-41723");
  script_xref(name:"RHSA", value:"2024:0948");

  script_name(english:"RHCOS 4 : OpenShift Container Platform 4.13.35 (RHSA-2024:0948)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat CoreOS host is missing a security update for OpenShift Container Platform 4.13.35.");
  script_set_attribute(attribute:"description", value:
"The remote Red Hat Enterprise Linux CoreOS 4 host has packages installed that are affected by a vulnerability as
referenced in the RHSA-2024:0948 advisory.

  - A maliciously crafted HTTP/2 stream could cause excessive CPU consumption in the HPACK decoder, sufficient
    to cause a denial of service from a small number of small requests. (CVE-2022-41723)

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://access.redhat.com/security/cve/CVE-2022-41723");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2024:0948");
  script_set_attribute(attribute:"solution", value:
"Update the RHCOS OpenShift Container Platform 4.13.35 package based on the guidance in RHSA-2024:0948.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  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:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2022-41723");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(400);
  script_set_attribute(attribute:"vendor_severity", value:"Moderate");

  script_set_attribute(attribute:"vuln_publication_date", value:"2023/02/15");
  script_set_attribute(attribute:"patch_publication_date", value:"2024/02/28");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/02/28");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:8:coreos");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:9:coreos");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:podman");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:podman-catatonit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:podman-docker");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:podman-gvproxy");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:podman-plugins");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:podman-remote");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:podman-tests");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  exit(0);
}


include('rpm.inc');
include('rhel.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/RedHat/release');
if (isnull(os_release) || 'Red Hat' >!< os_release) audit(AUDIT_OS_NOT, 'Red Hat');
var os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Red Hat CoreOS');
os_ver = os_ver[1];
if (!rhel_check_release(operator: 'eq', os_version: os_ver, rhel_version: '4.13')) audit(AUDIT_OS_NOT, 'Red Hat CoreOS 4.13', 'Red Hat CoreOS ' + os_ver);

if (!get_kb_item('Host/RedHat/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$" && 's390' >!< cpu && 'aarch64' >!< cpu && 'ppc' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Red Hat CoreOS', cpu);

var pkgs = [
    {'reference':'podman-4.4.1-5.1.rhaos4.13.el8', 'release':'4', 'el_string':'el8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'3', 'exists_check':'openshift-hyperkube'},
    {'reference':'podman-4.4.1-6.1.1.rhaos4.13.el9', 'release':'4', 'el_string':'el9', 'rpm_spec_vers_cmp':TRUE, 'epoch':'3', 'exists_check':'openshift-hyperkube'},
    {'reference':'podman-catatonit-4.4.1-5.1.rhaos4.13.el8', 'release':'4', 'el_string':'el8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'3', 'exists_check':'openshift-hyperkube'},
    {'reference':'podman-docker-4.4.1-5.1.rhaos4.13.el8', 'release':'4', 'el_string':'el8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'3', 'exists_check':'openshift-hyperkube'},
    {'reference':'podman-docker-4.4.1-6.1.1.rhaos4.13.el9', 'release':'4', 'el_string':'el9', 'rpm_spec_vers_cmp':TRUE, 'epoch':'3', 'exists_check':'openshift-hyperkube'},
    {'reference':'podman-gvproxy-4.4.1-5.1.rhaos4.13.el8', 'release':'4', 'el_string':'el8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'3', 'exists_check':'openshift-hyperkube'},
    {'reference':'podman-gvproxy-4.4.1-6.1.1.rhaos4.13.el9', 'release':'4', 'el_string':'el9', 'rpm_spec_vers_cmp':TRUE, 'epoch':'3', 'exists_check':'openshift-hyperkube'},
    {'reference':'podman-plugins-4.4.1-5.1.rhaos4.13.el8', 'release':'4', 'el_string':'el8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'3', 'exists_check':'openshift-hyperkube'},
    {'reference':'podman-plugins-4.4.1-6.1.1.rhaos4.13.el9', 'release':'4', 'el_string':'el9', 'rpm_spec_vers_cmp':TRUE, 'epoch':'3', 'exists_check':'openshift-hyperkube'},
    {'reference':'podman-remote-4.4.1-5.1.rhaos4.13.el8', 'release':'4', 'el_string':'el8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'3', 'exists_check':'openshift-hyperkube'},
    {'reference':'podman-remote-4.4.1-6.1.1.rhaos4.13.el9', 'release':'4', 'el_string':'el9', 'rpm_spec_vers_cmp':TRUE, 'epoch':'3', 'exists_check':'openshift-hyperkube'},
    {'reference':'podman-tests-4.4.1-5.1.rhaos4.13.el8', 'release':'4', 'el_string':'el8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'3', 'exists_check':'openshift-hyperkube'},
    {'reference':'podman-tests-4.4.1-6.1.1.rhaos4.13.el9', 'release':'4', 'el_string':'el9', 'rpm_spec_vers_cmp':TRUE, 'epoch':'3', 'exists_check':'openshift-hyperkube'}
];

var flag = 0;
foreach var package_array ( pkgs ) {
  var reference = NULL;
  var _release = NULL;
  var _cpu = NULL;
  var el_string = NULL;
  var rpm_spec_vers_cmp = NULL;
  var epoch = NULL;
  if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
  if (!empty_or_null(package_array['release'])) _release = 'RHCOS' + package_array['release'];
  if (!empty_or_null(package_array['cpu'])) _cpu = package_array['cpu'];
  if (!empty_or_null(package_array['el_string'])) el_string = package_array['el_string'];
  if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
  if (!empty_or_null(package_array['epoch'])) epoch = package_array['epoch'];
  if (reference &&
      _release &&
      (!exists_check || rpm_exists(release:_release, rpm:exists_check)) &&
      rpm_check(release:_release, sp:sp, cpu:_cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp)) 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, 'podman / podman-catatonit / podman-docker / podman-gvproxy / etc');
}
VendorProductVersionCPE
redhatenterprise_linuxpodman-dockerp-cpe:/a:redhat:enterprise_linux:podman-docker
redhatenterprise_linuxpodman-gvproxyp-cpe:/a:redhat:enterprise_linux:podman-gvproxy
redhatenterprise_linuxpodman-pluginsp-cpe:/a:redhat:enterprise_linux:podman-plugins
redhatenterprise_linuxpodman-remotep-cpe:/a:redhat:enterprise_linux:podman-remote
redhatenterprise_linuxpodman-testsp-cpe:/a:redhat:enterprise_linux:podman-tests
redhatenterprise_linux8cpe:/o:redhat:enterprise_linux:8:coreos
redhatenterprise_linux9cpe:/o:redhat:enterprise_linux:9:coreos
redhatenterprise_linuxpodmanp-cpe:/a:redhat:enterprise_linux:podman
redhatenterprise_linuxpodman-catatonitp-cpe:/a:redhat:enterprise_linux:podman-catatonit

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

6.7 Medium

AI Score

Confidence

High

0.024 Low

EPSS

Percentile

90.0%