RHEL 9 : Red Hat build of MicroShift 4.16.58 (RHSA-2026:4580)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2026:4580. The text
# itself is copyright (C) Red Hat, Inc.
##

include('compat.inc');

if (description)
{
  script_id(303049);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/03/19");

  script_cve_id("CVE-2025-65637");
  script_xref(name:"RHSA", value:"2026:4580");

  script_name(english:"RHEL 9 : Red Hat build of MicroShift 4.16.58 (RHSA-2026:4580)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat host is missing a security update for Red Hat build of MicroShift 4.16.58.");
  script_set_attribute(attribute:"description", value:
"The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in
the RHSA-2026:4580 advisory.

    Red Hat build of MicroShift is Red Hat's light-weight Kubernetes
    orchestration solution designed for edge device deployments and is built
    from the edge capabilities of Red Hat OpenShift Container Platform.
    MicroShift is an application that is deployed on top of Red Hat Enterprise
    Linux devices at the edge, providing an efficient way to operate
    single-node clusters in these low-resource environments.

    This advisory contains the RPM packages for Red Hat build of MicroShift
    4.16.58. Read the following advisory for the container images for this
    release:

    https://access.redhat.com/errata/RHSA-2026:4482

    Security Fix(es):

    * github.com/sirupsen/logrus: github.com/sirupsen/logrus: Denial-of-Service
    due to large single-line payload (CVE-2025-65637)

    All Red Hat build of MicroShift 4.16 users are advised to use these updated
    packages and images when they are available in the RPM repository.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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/updates/classification/#moderate");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2418900");
  # https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_4580.json
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?53a38aea");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2026:4580");
  script_set_attribute(attribute:"solution", value:
"Update the RHEL Red Hat build of MicroShift 4.16.58 package based on the guidance in RHSA-2026:4580.");
  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:POC/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:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss4_vector", value:"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N");
  script_set_attribute(attribute:"cvss4_threat_vector", value:"CVSS:4.0/E:P");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2025-65637");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_cwe_id(400);
  script_set_attribute(attribute:"vendor_severity", value:"Moderate");

  script_set_attribute(attribute:"vuln_publication_date", value:"2025/12/04");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/03/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/03/19");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:9");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:microshift");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:microshift-greenboot");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:microshift-multus");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:microshift-multus-release-info");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:microshift-networking");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:microshift-olm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:microshift-olm-release-info");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:microshift-release-info");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:microshift-selinux");
  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) 2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  exit(0);
}


include('rpm2.inc');
include('rhel.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_product = get_kb_item('installed_os/local/SSH/0/product');
if (isnull(os_product) || 'Red Hat' >!< os_product) audit(AUDIT_OS_NOT, 'Red Hat');
var os_version = get_kb_item('installed_os/local/SSH/0/version');
if (isnull(os_version)) audit(AUDIT_UNKNOWN_APP_VER, 'Red Hat');
if (!rhel_check_release(operator: 'ge', os_version: os_version, rhel_version: '9')) audit(AUDIT_OS_NOT, 'Red Hat 9.x', 'Red Hat ' + os_version);

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', cpu);

var constraints = [
  {
    'release': '9',
    'repo_relative_urls': [
      'content/dist/layered/rhel9/aarch64/rhocp/4.16/debug',
      'content/dist/layered/rhel9/aarch64/rhocp/4.16/os',
      'content/dist/layered/rhel9/aarch64/rhocp/4.16/source/SRPMS',
      'content/dist/layered/rhel9/x86_64/rhocp/4.16/debug',
      'content/dist/layered/rhel9/x86_64/rhocp/4.16/os',
      'content/dist/layered/rhel9/x86_64/rhocp/4.16/source/SRPMS'
    ],
    'pkgs': [
      {'reference':'microshift-4.16.58-202603160404.p0.gb9661ec.assembly.4.16.58.el9', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'openshift-hyperkube'},
      {'reference':'microshift-4.16.58-202603160404.p0.gb9661ec.assembly.4.16.58.el9', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'openshift-hyperkube'},
      {'reference':'microshift-greenboot-4.16.58-202603160404.p0.gb9661ec.assembly.4.16.58.el9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'openshift-hyperkube'},
      {'reference':'microshift-multus-4.16.58-202603160404.p0.gb9661ec.assembly.4.16.58.el9', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'openshift-hyperkube'},
      {'reference':'microshift-multus-4.16.58-202603160404.p0.gb9661ec.assembly.4.16.58.el9', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'openshift-hyperkube'},
      {'reference':'microshift-multus-release-info-4.16.58-202603160404.p0.gb9661ec.assembly.4.16.58.el9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'openshift-hyperkube'},
      {'reference':'microshift-networking-4.16.58-202603160404.p0.gb9661ec.assembly.4.16.58.el9', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'openshift-hyperkube'},
      {'reference':'microshift-networking-4.16.58-202603160404.p0.gb9661ec.assembly.4.16.58.el9', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'openshift-hyperkube'},
      {'reference':'microshift-olm-4.16.58-202603160404.p0.gb9661ec.assembly.4.16.58.el9', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'openshift-hyperkube'},
      {'reference':'microshift-olm-4.16.58-202603160404.p0.gb9661ec.assembly.4.16.58.el9', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'openshift-hyperkube'},
      {'reference':'microshift-olm-release-info-4.16.58-202603160404.p0.gb9661ec.assembly.4.16.58.el9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'openshift-hyperkube'},
      {'reference':'microshift-release-info-4.16.58-202603160404.p0.gb9661ec.assembly.4.16.58.el9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'openshift-hyperkube'},
      {'reference':'microshift-selinux-4.16.58-202603160404.p0.gb9661ec.assembly.4.16.58.el9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'openshift-hyperkube'}
    ]
  }
];

var applicable_repo_urls = rhel_determine_applicable_repository_urls(constraints:constraints);
if(applicable_repo_urls == RHEL_REPOS_NO_OVERLAP_MESSAGE) exit(0, RHEL_REPO_NOT_ENABLED);

var os_release = get_one_kb_item('installed_os/local/SSH/0/release');
var os_sp = get_one_kb_item('Host/*/minor_release');

var flag = 0;
var repo_relative_urls;
var reference;
var sp;
var _cpu;
var el_string;
var rpm_spec_vers_cmp;
var epoch;
var allowmaj;
var exists_check;
var cves;
foreach var constraint ( constraints ) {
  # Check that the target release is equal to the affected release
  if (!empty_or_null(constraint['release'])){
    if (constraint['release'] != os_release) continue;
  }
  if (!empty_or_null(constraint['sp'])){
    if (constraint['sp'] != os_sp) continue;
  }

  if (!empty_or_null(constraint['repo_relative_urls'])) repo_relative_urls = constraint['repo_relative_urls'];

  foreach var pkg ( constraint['pkgs'] ) {
    reference = NULL;
    sp = NULL;
    _cpu = NULL;
    el_string = NULL;
    rpm_spec_vers_cmp = NULL;
    epoch = NULL;
    allowmaj = NULL;
    exists_check = NULL;
    cves = NULL;
    if (!empty_or_null(pkg['reference'])) reference = pkg['reference'];
    if (!empty_or_null(pkg['sp'])) sp = pkg['sp'];
    if (!empty_or_null(pkg['cpu'])) _cpu = pkg['cpu'];
    if (!empty_or_null(pkg['el_string'])) el_string = pkg['el_string'];
    if (!empty_or_null(pkg['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = pkg['rpm_spec_vers_cmp'];
    if (!empty_or_null(pkg['epoch'])) epoch = pkg['epoch'];
    if (!empty_or_null(pkg['allowmaj'])) allowmaj = pkg['allowmaj'];
    if (!empty_or_null(pkg['exists_check'])) exists_check = pkg['exists_check'];
    if (!empty_or_null(pkg['cves'])) cves = pkg['cves'];
    if (reference &&
        rhel_decide_repo_relative_url_check(required_repo_url_list:repo_relative_urls) &&
        (applicable_repo_urls || (!exists_check || rpm_exists(rpm:exists_check))) &&
        rpm_check(sp:sp, cpu:_cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj, cves:cves)) flag++;
  }
}

if (flag)
{
  var extra = NULL;
  if (isnull(applicable_repo_urls) || !applicable_repo_urls) extra = rpm_report_get() + redhat_report_repo_caveat();
  else extra = rpm_report_get();
  security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      extra      : extra
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'microshift / microshift-greenboot / microshift-multus / etc');
}