RHEL 8 : opencryptoki (RHSA-2026:26352)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2026:26352. The text
# itself is copyright (C) Red Hat, Inc.
##

include('compat.inc');

if (description)
{
  script_id(321224);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/06/16");

  script_cve_id("CVE-2026-40253");
  script_xref(name:"RHSA", value:"2026:26352");

  script_name(english:"RHEL 8 : opencryptoki (RHSA-2026:26352)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat host is missing a security update for opencryptoki.");
  script_set_attribute(attribute:"description", value:
"The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in
the RHSA-2026:26352 advisory.

    The opencryptoki packages contain version 2.11 of the PKCS#11 API, implemented for IBM Cryptocards, such
    as IBM 4764 and 4765 crypto cards. These packages includes support for the IBM 4758 Cryptographic
    CoProcessor (with the PKCS#11 firmware loaded), the IBM eServer Cryptographic Accelerator (FC 4960 on IBM
    eServer System p), the IBM Crypto Express2 (FC 0863 or FC 0870 on IBM System z), and the IBM CP Assist for
    Cryptographic Function (FC 3863 on IBM System z). The opencryptoki packages also bring a software token
    implementation that can be used without any cryptographic hardware. These packages contain the Slot Daemon
    (pkcsslotd) and general utilities.

    Security Fix(es):

    * openCryptoki: openCryptoki: Information disclosure and Denial of Service via malformed BER-encoded
    cryptographic objects (CVE-2026-40253)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and
    other related information, refer to the CVE page(s) listed in the References section.

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=2459076");
  # https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_26352.json
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?4f30010f");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2026:26352");
  script_set_attribute(attribute:"solution", value:
"Update the RHEL opencryptoki package based on the guidance in RHSA-2026:26352.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:P/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:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-40253");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_cwe_id(125);
  script_set_attribute(attribute:"vendor_severity", value:"Moderate");

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/04/16");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/06/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/06/16");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:8");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:rhel_eus:8.10");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:opencryptoki");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:opencryptoki-ccatok");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:opencryptoki-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:opencryptoki-ep11tok");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:opencryptoki-icatok");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:opencryptoki-icsftok");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:opencryptoki-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:opencryptoki-swtok");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:opencryptoki-tpmtok");
  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: '8')) audit(AUDIT_OS_NOT, 'Red Hat 8.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': '8',
    'repo_relative_urls': [
      'content/dist/rhel8/8.10/s390x/baseos/debug',
      'content/dist/rhel8/8.10/s390x/baseos/os',
      'content/dist/rhel8/8.10/s390x/baseos/source/SRPMS',
      'content/dist/rhel8/8.10/s390x/codeready-builder/debug',
      'content/dist/rhel8/8.10/s390x/codeready-builder/os',
      'content/dist/rhel8/8.10/s390x/codeready-builder/source/SRPMS',
      'content/dist/rhel8/8.6/s390x/baseos/debug',
      'content/dist/rhel8/8.6/s390x/baseos/os',
      'content/dist/rhel8/8.6/s390x/baseos/source/SRPMS',
      'content/dist/rhel8/8.6/s390x/codeready-builder/debug',
      'content/dist/rhel8/8.6/s390x/codeready-builder/os',
      'content/dist/rhel8/8.6/s390x/codeready-builder/source/SRPMS',
      'content/dist/rhel8/8.8/s390x/baseos/debug',
      'content/dist/rhel8/8.8/s390x/baseos/os',
      'content/dist/rhel8/8.8/s390x/baseos/source/SRPMS',
      'content/dist/rhel8/8.8/s390x/codeready-builder/debug',
      'content/dist/rhel8/8.8/s390x/codeready-builder/os',
      'content/dist/rhel8/8.8/s390x/codeready-builder/source/SRPMS',
      'content/dist/rhel8/8.9/s390x/baseos/debug',
      'content/dist/rhel8/8.9/s390x/baseos/os',
      'content/dist/rhel8/8.9/s390x/baseos/source/SRPMS',
      'content/dist/rhel8/8.9/s390x/codeready-builder/debug',
      'content/dist/rhel8/8.9/s390x/codeready-builder/os',
      'content/dist/rhel8/8.9/s390x/codeready-builder/source/SRPMS',
      'content/dist/rhel8/8/s390x/baseos/debug',
      'content/dist/rhel8/8/s390x/baseos/os',
      'content/dist/rhel8/8/s390x/baseos/source/SRPMS',
      'content/dist/rhel8/8/s390x/codeready-builder/debug',
      'content/dist/rhel8/8/s390x/codeready-builder/os',
      'content/dist/rhel8/8/s390x/codeready-builder/source/SRPMS',
      'content/e6s/rhel8/8.10/s390x/baseos/debug',
      'content/e6s/rhel8/8.10/s390x/baseos/os',
      'content/e6s/rhel8/8.10/s390x/baseos/source/SRPMS',
      'content/public/ubi/dist/ubi8/8/s390x/baseos/debug',
      'content/public/ubi/dist/ubi8/8/s390x/baseos/os',
      'content/public/ubi/dist/ubi8/8/s390x/baseos/source/SRPMS',
      'content/public/ubi/dist/ubi8/8/s390x/codeready-builder/debug',
      'content/public/ubi/dist/ubi8/8/s390x/codeready-builder/os',
      'content/public/ubi/dist/ubi8/8/s390x/codeready-builder/source/SRPMS'
    ],
    'pkgs': [
      {'reference':'opencryptoki-3.22.0-3.el8_10.3', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'opencryptoki-ccatok-3.22.0-3.el8_10.3', 'cpu':'s390x', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'opencryptoki-devel-3.22.0-3.el8_10.3', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'opencryptoki-ep11tok-3.22.0-3.el8_10.3', 'cpu':'s390x', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'opencryptoki-icatok-3.22.0-3.el8_10.3', 'cpu':'s390x', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'opencryptoki-icsftok-3.22.0-3.el8_10.3', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'opencryptoki-libs-3.22.0-3.el8_10.3', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'opencryptoki-swtok-3.22.0-3.el8_10.3', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'opencryptoki-tpmtok-3.22.0-3.el8_10.3', 'rpm_spec_vers_cmp':TRUE}
    ]
  }
];

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_WARNING,
      extra      : extra
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'opencryptoki / opencryptoki-ccatok / opencryptoki-devel / etc');
}