Oracle Linux 8 : sssd (ELSA-2026-46990)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Oracle Linux Security Advisory ELSA-2026-46990.
##

include('compat.inc');

if (description)
{
  script_id(331369);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/07/31");

  script_cve_id("CVE-2026-14474", "CVE-2026-14476");

  script_name(english:"Oracle Linux 8 : sssd (ELSA-2026-46990)");

  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 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the
ELSA-2026-46990 advisory.

    - Resolves: RHEL-192053 - CVE-2026-14474: sudo LDAP provider searches entire directory tree for sudoRole
    objects by default, enabling privilege escalation [rhel-8.10.z]
    - Resolves: RHEL-192076 - CVE-2026-14476: GPO cache path traversal via unsanitized gPCFileSysPath allows
    Kerberos authentication bypass [rhel-8.10.z]
    - Resolves: RHEL-120292 - CVE-2025-11561 sssd: SSSD default Kerberos configuration allows privilege
    escalation on AD-joined Linux systems [rhel-8.10.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-2026-46990.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: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:L/UI:N/S:U/C:H/I:H/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-2026-14474");

  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:"2026/07/07");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/07/28");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/07/31");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:8");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:8:10:baseos_patch");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:libipa_hbac");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:libsss_autofs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:libsss_certmap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:libsss_idmap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:libsss_nss_idmap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:libsss_nss_idmap-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:libsss_simpleifp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:libsss_sudo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:python3-libipa_hbac");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:python3-libsss_nss_idmap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:python3-sss");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:python3-sss-murmur");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:python3-sssdconfig");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:sssd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:sssd-ad");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:sssd-client");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:sssd-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:sssd-common-pac");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:sssd-dbus");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:sssd-idp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:sssd-ipa");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:sssd-kcm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:sssd-krb5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:sssd-krb5-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:sssd-ldap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:sssd-nfs-idmap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:sssd-polkit-rules");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:sssd-proxy");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:sssd-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:sssd-winbind-idmap");
  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:"^8([^0-9]|$)", string:os_version)) audit(AUDIT_OS_NOT, 'Oracle Linux 8.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': '8',
    'pkgs': [
      {'reference':'libipa_hbac-2.9.4-5.0.2.el8_10.5', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libsss_autofs-2.9.4-5.0.2.el8_10.5', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libsss_certmap-2.9.4-5.0.2.el8_10.5', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libsss_idmap-2.9.4-5.0.2.el8_10.5', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libsss_nss_idmap-2.9.4-5.0.2.el8_10.5', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libsss_nss_idmap-devel-2.9.4-5.0.2.el8_10.5', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libsss_simpleifp-2.9.4-5.0.2.el8_10.5', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libsss_sudo-2.9.4-5.0.2.el8_10.5', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3-libipa_hbac-2.9.4-5.0.2.el8_10.5', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3-libsss_nss_idmap-2.9.4-5.0.2.el8_10.5', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3-sss-2.9.4-5.0.2.el8_10.5', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3-sss-murmur-2.9.4-5.0.2.el8_10.5', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3-sssdconfig-2.9.4-5.0.2.el8_10.5', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'sssd-2.9.4-5.0.2.el8_10.5', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'sssd-ad-2.9.4-5.0.2.el8_10.5', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'sssd-client-2.9.4-5.0.2.el8_10.5', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'sssd-common-2.9.4-5.0.2.el8_10.5', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'sssd-common-pac-2.9.4-5.0.2.el8_10.5', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'sssd-dbus-2.9.4-5.0.2.el8_10.5', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'sssd-idp-2.9.4-5.0.2.el8_10.5', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'sssd-ipa-2.9.4-5.0.2.el8_10.5', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'sssd-kcm-2.9.4-5.0.2.el8_10.5', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'sssd-krb5-2.9.4-5.0.2.el8_10.5', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'sssd-krb5-common-2.9.4-5.0.2.el8_10.5', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'sssd-ldap-2.9.4-5.0.2.el8_10.5', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'sssd-nfs-idmap-2.9.4-5.0.2.el8_10.5', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'sssd-polkit-rules-2.9.4-5.0.2.el8_10.5', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'sssd-proxy-2.9.4-5.0.2.el8_10.5', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'sssd-tools-2.9.4-5.0.2.el8_10.5', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'sssd-winbind-idmap-2.9.4-5.0.2.el8_10.5', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libipa_hbac-2.9.4-5.0.2.el8_10.5', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libsss_certmap-2.9.4-5.0.2.el8_10.5', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libsss_idmap-2.9.4-5.0.2.el8_10.5', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libsss_nss_idmap-2.9.4-5.0.2.el8_10.5', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libsss_nss_idmap-devel-2.9.4-5.0.2.el8_10.5', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libsss_simpleifp-2.9.4-5.0.2.el8_10.5', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'sssd-client-2.9.4-5.0.2.el8_10.5', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libipa_hbac-2.9.4-5.0.2.el8_10.5', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libsss_autofs-2.9.4-5.0.2.el8_10.5', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libsss_certmap-2.9.4-5.0.2.el8_10.5', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libsss_idmap-2.9.4-5.0.2.el8_10.5', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libsss_nss_idmap-2.9.4-5.0.2.el8_10.5', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libsss_nss_idmap-devel-2.9.4-5.0.2.el8_10.5', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libsss_simpleifp-2.9.4-5.0.2.el8_10.5', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libsss_sudo-2.9.4-5.0.2.el8_10.5', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3-libipa_hbac-2.9.4-5.0.2.el8_10.5', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3-libsss_nss_idmap-2.9.4-5.0.2.el8_10.5', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3-sss-2.9.4-5.0.2.el8_10.5', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3-sss-murmur-2.9.4-5.0.2.el8_10.5', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3-sssdconfig-2.9.4-5.0.2.el8_10.5', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'sssd-2.9.4-5.0.2.el8_10.5', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'sssd-ad-2.9.4-5.0.2.el8_10.5', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'sssd-client-2.9.4-5.0.2.el8_10.5', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'sssd-common-2.9.4-5.0.2.el8_10.5', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'sssd-common-pac-2.9.4-5.0.2.el8_10.5', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'sssd-dbus-2.9.4-5.0.2.el8_10.5', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'sssd-idp-2.9.4-5.0.2.el8_10.5', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'sssd-ipa-2.9.4-5.0.2.el8_10.5', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'sssd-kcm-2.9.4-5.0.2.el8_10.5', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'sssd-krb5-2.9.4-5.0.2.el8_10.5', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'sssd-krb5-common-2.9.4-5.0.2.el8_10.5', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'sssd-ldap-2.9.4-5.0.2.el8_10.5', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'sssd-nfs-idmap-2.9.4-5.0.2.el8_10.5', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'sssd-polkit-rules-2.9.4-5.0.2.el8_10.5', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'sssd-proxy-2.9.4-5.0.2.el8_10.5', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'sssd-tools-2.9.4-5.0.2.el8_10.5', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'sssd-winbind-idmap-2.9.4-5.0.2.el8_10.5', '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, 'libipa_hbac / libsss_autofs / libsss_certmap / etc');
}