AlmaLinux 9 : ipa (ALSA-2026:70564)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# AlmaLinux Security Advisory ALSA-2026:70564.
##

include('compat.inc');

if (description)
{
  script_id(369311);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/10/21");

  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_xref(name:"ALSA", value:"2026:70564");
  script_xref(name:"RHSA", value:"2026:70564");

  script_name(english:"AlmaLinux 9 : ipa (ALSA-2026:70564)");

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

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


    Bug Fix(es) and Enhancement(s):

      * [Cursor Automated] Include latest fixes in python3-ipatests package [AlmaLinux9.8]
    (JIRA:AlmaLinux-170987)
      * WebUI Hardening [almalinux-9.8.z] (JIRA:AlmaLinux-238511)
      * ipa-otptoken-import hardening [almalinux-9.8.z] (JIRA:AlmaLinux-238519)
      * host-mod: handle the password attribute when set with --setattr userpassword= [almalinux-9.8.z]
    (JIRA:AlmaLinux-238523)
      * ipa env: support only simple * wildcard [almalinux-9.8.z] (JIRA:AlmaLinux-238527)
      * ipa-epn: drop_privileges method is mixing uid and gid [almalinux-9.8.z] (JIRA:AlmaLinux-238674)
      * ipa-migrate: require Replication Administrator privilege [almalinux-9.8.z] (JIRA:AlmaLinux-238677)
      * ipa-migrate tool is renaming host records & host info in automount information [almalinux-9.8.z]
    (JIRA:AlmaLinux-240767)

Tenable has extracted the preceding description block directly from the AlmaLinux 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://errata.almalinux.org/9/ALSA-2026-70564.html");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2026:70564");
  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_cwe_id(266, 306, 706, 770, 79, 863, 95);

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/08/11");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/09/23");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/10/21");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:ipa-client");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:ipa-client-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:ipa-client-encrypted-dns");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:ipa-client-epn");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:ipa-client-samba");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:ipa-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:ipa-selinux");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:ipa-selinux-luna");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:ipa-selinux-nfast");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:ipa-server");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:ipa-server-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:ipa-server-dns");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:ipa-server-encrypted-dns");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:ipa-server-trust-ad");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:python3-ipaclient");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:python3-ipalib");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:python3-ipaserver");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:python3-ipatests");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:9");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:9::appstream");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:9::baseos");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:9::crb");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:9::highavailability");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:9::nfv");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:9::realtime");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:9::resilientstorage");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:9::sap");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:9::sap_hana");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:9::supplementary");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Alma 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_info2.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/AlmaLinux/release", "Host/AlmaLinux/rpm-list", "Host/cpu");

  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) || 'AlmaLinux' >!< os_product) audit(AUDIT_OS_NOT, 'AlmaLinux');
var os_version = get_kb_item('installed_os/local/SSH/0/version');
if (isnull(os_version)) audit(AUDIT_UNKNOWN_APP_VER, 'AlmaLinux');
if (! preg(pattern:"^9([^0-9]|$)", string:os_version)) audit(AUDIT_OS_NOT, 'AlmaLinux 9.x', 'AlmaLinux ' + os_version);

if (!get_kb_item('Host/AlmaLinux/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);

var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('aarch64' >!< cpu && 'ppc' >!< cpu && 's390' >!< cpu && 'x86_64' >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'AlmaLinux', cpu);

var constraints = [
  {
    'release': '9',
    'pkgs': [
      {'reference':'ipa-client-4.13.4-1.el9_8', 'cpu':'aarch64', 'el_string':'el9_8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'ipa-client-4.13.4-1.el9_8', 'cpu':'ppc64le', 'el_string':'el9_8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'ipa-client-4.13.4-1.el9_8', 'cpu':'s390x', 'el_string':'el9_8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'ipa-client-4.13.4-1.el9_8', 'cpu':'x86_64', 'el_string':'el9_8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'ipa-client-common-4.13.4-1.el9_8', 'el_string':'el9_8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'ipa-client-encrypted-dns-4.13.4-1.el9_8', 'cpu':'aarch64', 'el_string':'el9_8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'ipa-client-encrypted-dns-4.13.4-1.el9_8', 'cpu':'ppc64le', 'el_string':'el9_8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'ipa-client-encrypted-dns-4.13.4-1.el9_8', 'cpu':'s390x', 'el_string':'el9_8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'ipa-client-encrypted-dns-4.13.4-1.el9_8', 'cpu':'x86_64', 'el_string':'el9_8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'ipa-client-epn-4.13.4-1.el9_8', 'cpu':'aarch64', 'el_string':'el9_8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'ipa-client-epn-4.13.4-1.el9_8', 'cpu':'ppc64le', 'el_string':'el9_8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'ipa-client-epn-4.13.4-1.el9_8', 'cpu':'s390x', 'el_string':'el9_8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'ipa-client-epn-4.13.4-1.el9_8', 'cpu':'x86_64', 'el_string':'el9_8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'ipa-client-samba-4.13.4-1.el9_8', 'cpu':'aarch64', 'el_string':'el9_8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'ipa-client-samba-4.13.4-1.el9_8', 'cpu':'ppc64le', 'el_string':'el9_8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'ipa-client-samba-4.13.4-1.el9_8', 'cpu':'s390x', 'el_string':'el9_8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'ipa-client-samba-4.13.4-1.el9_8', 'cpu':'x86_64', 'el_string':'el9_8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'ipa-common-4.13.4-1.el9_8', 'el_string':'el9_8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'ipa-selinux-4.13.4-1.el9_8', 'el_string':'el9_8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'ipa-selinux-luna-4.13.4-1.el9_8', 'el_string':'el9_8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'ipa-selinux-nfast-4.13.4-1.el9_8', 'el_string':'el9_8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'ipa-server-4.13.4-1.el9_8', 'cpu':'aarch64', 'el_string':'el9_8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'ipa-server-4.13.4-1.el9_8', 'cpu':'ppc64le', 'el_string':'el9_8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'ipa-server-4.13.4-1.el9_8', 'cpu':'s390x', 'el_string':'el9_8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'ipa-server-4.13.4-1.el9_8', 'cpu':'x86_64', 'el_string':'el9_8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'ipa-server-common-4.13.4-1.el9_8', 'el_string':'el9_8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'ipa-server-dns-4.13.4-1.el9_8', 'el_string':'el9_8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'ipa-server-encrypted-dns-4.13.4-1.el9_8', 'cpu':'aarch64', 'el_string':'el9_8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'ipa-server-encrypted-dns-4.13.4-1.el9_8', 'cpu':'ppc64le', 'el_string':'el9_8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'ipa-server-encrypted-dns-4.13.4-1.el9_8', 'cpu':'s390x', 'el_string':'el9_8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'ipa-server-encrypted-dns-4.13.4-1.el9_8', 'cpu':'x86_64', 'el_string':'el9_8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'ipa-server-trust-ad-4.13.4-1.el9_8', 'cpu':'aarch64', 'el_string':'el9_8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'ipa-server-trust-ad-4.13.4-1.el9_8', 'cpu':'ppc64le', 'el_string':'el9_8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'ipa-server-trust-ad-4.13.4-1.el9_8', 'cpu':'s390x', 'el_string':'el9_8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'ipa-server-trust-ad-4.13.4-1.el9_8', 'cpu':'x86_64', 'el_string':'el9_8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'python3-ipaclient-4.13.4-1.el9_8', 'el_string':'el9_8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'python3-ipalib-4.13.4-1.el9_8', 'el_string':'el9_8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'python3-ipaserver-4.13.4-1.el9_8', 'el_string':'el9_8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'python3-ipatests-4.13.4-1.el9_8', 'el_string':'el9_8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'}
    ]
  }
];

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');
}