Oracle Linux 9 : ipa (ELSA-2026-70564)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Oracle Linux Security Advisory ELSA-2026-70564.
##

include('compat.inc');

if (description)
{
  script_id(350078);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/09/24");

  script_cve_id(
    "CVE-2026-11861",
    "CVE-2026-13097",
    "CVE-2026-18147",
    "CVE-2026-19550",
    "CVE-2026-73197",
    "CVE-2026-73198",
    "CVE-2026-76578",
    "CVE-2026-79678"
  );

  script_name(english:"Oracle Linux 9 : ipa (ELSA-2026-70564)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Oracle Linux host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the
ELSA-2026-70564 advisory.

    - RHEL-218866 CVE-2026-18147 ipa: FreeIPA/IdM: Cross-Site Scripting vulnerability allows arbitrary code
    execution via crafted URL [rhel-9.8.z]
    - RHEL-245474 CVE-2026-76578 ipa: FreeIPA: unauthenticated LDAP client can obtain administrator
    credentials via the self-managed-token ACI [rhel-9.8.z]
    - RHEL-248206 CVE-2026-79678 ipa: freeipa: idp-add eval() reachable before authorization check allows
    environment disclosure and denial of service [rhel-9.8.z]
    - RHEL-245627 CVE-2026-19550 ipa: FreeIPA: trust-fetch-domains uses trust-read ACI to gate a privileged AD
    trust refresh, allowing unauthorized LDAP writes [rhel-9.8.z]
    - RHEL-240898 CVE-2026-13097 ipa: Privilege escalation via krbCanonicalName manipulation due to realm-
    unaware uniqueness enforcement in FreeIPA LDAP datastore [rhel-9.8.z]
    - RHEL-240830 CVE-2026-11861 ipa: FreeIPA: Obtaining TGS with impersonating cname through trust
    relationships [rhel-9.8.z]
    - RHEL-240815 CVE-2026-73197 ipa: FreeIPA: Unauthenticated DoS in /ipa/migration/migration.py via
    Unbounded Request Body Read [rhel-9.8.z]
    - RHEL-240804 CVE-2026-73198 ipa: FreeIPA: Unauthenticated DoS in /ipa/i18n_messages via Unbounded Request
    Body Read [rhel-9.8.z]

Tenable has extracted the preceding description block directly from the Oracle Linux 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://linux.oracle.com/errata/ELSA-2026-70564.html");
  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-2026-11861");

  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:"2026/08/11");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/09/24");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/09/24");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:9");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:ipa-client");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:ipa-client-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:ipa-client-encrypted-dns");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:ipa-client-epn");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:ipa-client-samba");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:ipa-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:ipa-selinux");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:ipa-selinux-luna");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:ipa-selinux-nfast");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:ipa-server");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:ipa-server-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:ipa-server-dns");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:ipa-server-encrypted-dns");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:ipa-server-trust-ad");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:python3-ipaclient");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:python3-ipalib");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:python3-ipaserver");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:python3-ipatests");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Oracle Linux 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");
  script_require_keys("Host/OracleLinux", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/local_checks_enabled");

  exit(0);
}


include('rpm2.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) || !pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux)", string:os_product)) audit(AUDIT_OS_NOT, 'Oracle Linux');
var os_version = get_kb_item('installed_os/local/SSH/0/version');
if (isnull(os_version)) audit(AUDIT_UNKNOWN_APP_VER, 'Oracle Linux');
if (! preg(pattern:"^9([^0-9]|$)", string:os_version)) audit(AUDIT_OS_NOT, 'Oracle Linux 9.x', 'Oracle Linux ' + 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$" && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Oracle Linux', cpu);

var constraints = [
  {
    'release': '9',
    'pkgs': [
      {'reference':'ipa-client-4.13.4-1.0.1.el9_8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ipa-client-common-4.13.4-1.0.1.el9_8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ipa-client-encrypted-dns-4.13.4-1.0.1.el9_8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ipa-client-epn-4.13.4-1.0.1.el9_8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ipa-client-samba-4.13.4-1.0.1.el9_8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ipa-common-4.13.4-1.0.1.el9_8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ipa-selinux-4.13.4-1.0.1.el9_8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ipa-selinux-luna-4.13.4-1.0.1.el9_8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ipa-selinux-nfast-4.13.4-1.0.1.el9_8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ipa-server-4.13.4-1.0.1.el9_8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ipa-server-common-4.13.4-1.0.1.el9_8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ipa-server-dns-4.13.4-1.0.1.el9_8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ipa-server-encrypted-dns-4.13.4-1.0.1.el9_8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ipa-server-trust-ad-4.13.4-1.0.1.el9_8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3-ipaclient-4.13.4-1.0.1.el9_8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3-ipalib-4.13.4-1.0.1.el9_8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3-ipaserver-4.13.4-1.0.1.el9_8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3-ipatests-4.13.4-1.0.1.el9_8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ipa-client-4.13.4-1.0.1.el9_8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ipa-client-common-4.13.4-1.0.1.el9_8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ipa-client-encrypted-dns-4.13.4-1.0.1.el9_8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ipa-client-epn-4.13.4-1.0.1.el9_8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ipa-client-samba-4.13.4-1.0.1.el9_8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ipa-common-4.13.4-1.0.1.el9_8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ipa-selinux-4.13.4-1.0.1.el9_8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ipa-selinux-luna-4.13.4-1.0.1.el9_8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ipa-selinux-nfast-4.13.4-1.0.1.el9_8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ipa-server-4.13.4-1.0.1.el9_8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ipa-server-common-4.13.4-1.0.1.el9_8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ipa-server-dns-4.13.4-1.0.1.el9_8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ipa-server-encrypted-dns-4.13.4-1.0.1.el9_8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ipa-server-trust-ad-4.13.4-1.0.1.el9_8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3-ipaclient-4.13.4-1.0.1.el9_8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3-ipalib-4.13.4-1.0.1.el9_8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3-ipaserver-4.13.4-1.0.1.el9_8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3-ipatests-4.13.4-1.0.1.el9_8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE}
    ]
  }
];

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 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;
  }
  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 &&
        ## (no known rpm to check OR known rpm_exists)
        (!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)
{
  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, 'ipa-client / ipa-client-common / ipa-client-encrypted-dns / etc');
}