Ubuntu 22.04 LTS / 24.04 LTS / 25.10 / 26.04 LTS : Ironic vulnerabilities (USN-8421-1)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-8421-1. The text
# itself is copyright (C) Canonical, Inc. See
# <https://ubuntu.com/security/notices>. Ubuntu(R) is a registered
# trademark of Canonical, Inc.
##

include('compat.inc');

if (description)
{
  script_id(320843);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/06/12");

  script_cve_id("CVE-2026-44917", "CVE-2026-46447", "CVE-2026-48681");
  script_xref(name:"USN", value:"8421-1");

  script_name(english:"Ubuntu 22.04 LTS / 24.04 LTS / 25.10 / 26.04 LTS : Ironic vulnerabilities (USN-8421-1)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Ubuntu host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The remote Ubuntu 22.04 LTS / 24.04 LTS / 25.10 / 26.04 LTS host has packages installed that are affected by multiple
vulnerabilities as referenced in the USN-8421-1 advisory.

    Dmitry Tantsur and Tuomo Tanskanen discovered that Ironic did not properly validate file paths when
    handling ISO images. A privileged authenticated remote user could use this issue to perform path traversal
    via a crafted ISO image and overwrite arbitrary files on the Ironic conductor. (CVE-2026-48681)

    Dmitry Tantsur and Tuomo Tanskanen discovered that Ironic did not properly validate kernel command line
    parameters. A privileged authenticated remote user could use this issue to inject scripts during node boot
    and possibly execute arbitrary code. (CVE-2026-46447)

    Dmitry Tantsur and Tuomo Tanskanen discovered that Ironic incorrectly restricted access to custom PXE
    templates. A privileged authenticated remote user could use this issue to read arbitrary sensitive files
    on the Ironic conductor. (CVE-2026-44917)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

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://ubuntu.com/security/notices/USN-8421-1");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:N");
  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:L/UI:N/S:U/C:H/I:H/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-48681");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/06/03");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/06/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/06/12");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:22.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:24.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:25.10");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:26.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:ironic-api");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:ironic-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:ironic-conductor");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:python3-ironic");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"Ubuntu Security Notice (C) 2026 Canonical, Inc. / NASL script (C) 2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/cpu", "Host/Ubuntu", "Host/Ubuntu/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);
var os_release = get_kb_item('Host/Ubuntu/release');
if ( isnull(os_release) ) audit(AUDIT_OS_NOT, 'Ubuntu');
os_release = chomp(os_release);
if (! ('22.04' >< os_release || '24.04' >< os_release || '25.10' >< os_release || '26.04' >< os_release)) audit(AUDIT_OS_NOT, 'Ubuntu 22.04 / 24.04 / 25.10 / 26.04', 'Ubuntu ' + os_release);
if ( ! get_kb_item('Host/Debian/dpkg-l') ) 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) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Ubuntu', cpu);

var pkgs = [
    {'osver': '22.04', 'pkgname': 'ironic-api', 'pkgver': '1:20.1.0-0ubuntu1.3'},
    {'osver': '22.04', 'pkgname': 'ironic-common', 'pkgver': '1:20.1.0-0ubuntu1.3'},
    {'osver': '22.04', 'pkgname': 'ironic-conductor', 'pkgver': '1:20.1.0-0ubuntu1.3'},
    {'osver': '22.04', 'pkgname': 'python3-ironic', 'pkgver': '1:20.1.0-0ubuntu1.3'},
    {'osver': '24.04', 'pkgname': 'ironic-api', 'pkgver': '1:24.1.1-0ubuntu1.3'},
    {'osver': '24.04', 'pkgname': 'ironic-common', 'pkgver': '1:24.1.1-0ubuntu1.3'},
    {'osver': '24.04', 'pkgname': 'ironic-conductor', 'pkgver': '1:24.1.1-0ubuntu1.3'},
    {'osver': '24.04', 'pkgname': 'python3-ironic', 'pkgver': '1:24.1.1-0ubuntu1.3'},
    {'osver': '25.10', 'pkgname': 'ironic-api', 'pkgver': '1:32.0.0-0ubuntu1.1'},
    {'osver': '25.10', 'pkgname': 'ironic-common', 'pkgver': '1:32.0.0-0ubuntu1.1'},
    {'osver': '25.10', 'pkgname': 'ironic-conductor', 'pkgver': '1:32.0.0-0ubuntu1.1'},
    {'osver': '25.10', 'pkgname': 'python3-ironic', 'pkgver': '1:32.0.0-0ubuntu1.1'},
    {'osver': '26.04', 'pkgname': 'ironic-api', 'pkgver': '1:35.0.0-0ubuntu2.1'},
    {'osver': '26.04', 'pkgname': 'ironic-common', 'pkgver': '1:35.0.0-0ubuntu2.1'},
    {'osver': '26.04', 'pkgname': 'ironic-conductor', 'pkgver': '1:35.0.0-0ubuntu2.1'},
    {'osver': '26.04', 'pkgname': 'python3-ironic', 'pkgver': '1:35.0.0-0ubuntu2.1'}
];

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

if (flag)
{
  var extra = '';
  extra += ubuntu_report_get();
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : extra
  );
  exit(0);
}
else
{
  var tested = ubuntu_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'ironic-api / ironic-common / ironic-conductor / python3-ironic');
}