AlmaLinux 8 : idm:DL1 (ALSA-2024:0143)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# AlmaLinux Security Advisory ALSA-2024:0143.
##

include('compat.inc');

if (description)
{
  script_id(188006);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/02/21");

  script_cve_id("CVE-2020-17049", "CVE-2023-5455");
  script_xref(name:"ALSA", value:"2024:0143");

  script_name(english:"AlmaLinux 8 : idm:DL1 (ALSA-2024:0143)");

  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 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the
ALSA-2024:0143 advisory.

  - <p>A security feature bypass vulnerability exists in the way Key Distribution Center (KDC) determines if a
    service ticket can be used for delegation via Kerberos Constrained Delegation (KCD).</p> <p>To exploit the
    vulnerability, a compromised service that is configured to use KCD could tamper with a service ticket that
    is not valid for delegation to force the KDC to accept it.</p> <p>The update addresses this vulnerability
    by changing how the KDC validates service tickets used with KCD.</p> (CVE-2020-17049)

  - A Cross-site request forgery vulnerability exists in ipa/session/login_password in all supported versions
    of IPA. This flaw allows an attacker to trick the user into submitting a request that could perform
    actions as the user, resulting in a loss of confidentiality and system integrity. During community
    penetration testing it was found that for certain HTTP end-points FreeIPA does not ensure CSRF protection.
    Due to implementation details one cannot use this flaw for reflection of a cookie representing already
    logged-in user. An attacker would always have to go through a new authentication attempt. (CVE-2023-5455)

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/8/ALSA-2024-0143.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:H/PR:H/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-2020-17049");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(345, 352);

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/11/10");
  script_set_attribute(attribute:"patch_publication_date", value:"2024/01/10");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/01/12");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:bind-dyndb-ldap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:custodia");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:ipa-healthcheck");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:ipa-healthcheck-core");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:opendnssec");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:python3-custodia");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:python3-jwcrypto");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:python3-kdcproxy");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:python3-pyusb");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:python3-qrcode");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:python3-qrcode-core");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:python3-yubico");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:slapi-nis");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:softhsm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:softhsm-devel");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:8");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:8::appstream");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:8::baseos");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:8::highavailability");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:8::nfv");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:8::powertools");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:8::realtime");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:8::resilientstorage");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:8::sap");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:8::sap_hana");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:8::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) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/AlmaLinux/release", "Host/AlmaLinux/rpm-list", "Host/cpu");

  exit(0);
}


include('rpm.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/AlmaLinux/release');
if (isnull(os_release) || 'AlmaLinux' >!< os_release) audit(AUDIT_OS_NOT, 'AlmaLinux');
var os_ver = pregmatch(pattern: "AlmaLinux release ([0-9]+(\.[0-9]+)?)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'AlmaLinux');
os_ver = os_ver[1];
if (! preg(pattern:"^8([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, 'AlmaLinux 8.x', 'AlmaLinux ' + os_ver);

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 ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'AlmaLinux', cpu);

var module_ver = get_kb_item('Host/AlmaLinux/appstream/idm');
if (isnull(module_ver)) audit(AUDIT_PACKAGE_NOT_INSTALLED, 'Module idm:DL1');
if ('DL1' >!< module_ver) audit(AUDIT_PACKAGE_NOT_AFFECTED, 'Module idm:' + module_ver);

var appstreams = {
    'idm:DL1': [
      {'reference':'bind-dyndb-ldap-11.6-4.module_el8.6.0+3339+9b5fdd22', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'bind-dyndb-ldap-11.6-4.module_el8.6.0+3339+9b5fdd22', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'custodia-0.6.0-3.module_el8.6.0+2881+2f24dc92', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ipa-healthcheck-0.12-3.module_el8.9.0+3651+d05ea4c5', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ipa-healthcheck-core-0.12-3.module_el8.9.0+3651+d05ea4c5', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'opendnssec-2.1.7-1.module_el8.6.0+2881+2f24dc92', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'opendnssec-2.1.7-1.module_el8.6.0+2881+2f24dc92', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3-custodia-0.6.0-3.module_el8.6.0+2881+2f24dc92', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3-jwcrypto-0.5.0-1.1.module_el8.7.0+3349+cfeff52e', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3-kdcproxy-0.4-5.module_el8.9.0+3682+f63caf3e', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3-pyusb-1.0.0-9.1.module_el8.7.0+3349+cfeff52e', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3-qrcode-5.1-12.module_el8.6.0+2881+2f24dc92', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3-qrcode-core-5.1-12.module_el8.6.0+2881+2f24dc92', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3-yubico-1.3.2-9.1.module_el8.7.0+3349+cfeff52e', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'slapi-nis-0.60.0-4.module_el8.9.0+3682+f63caf3e.alma.1', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'slapi-nis-0.60.0-4.module_el8.9.0+3682+f63caf3e.alma.1', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'softhsm-2.6.0-5.module_el8.6.0+2881+2f24dc92', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'softhsm-2.6.0-5.module_el8.6.0+2881+2f24dc92', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'softhsm-devel-2.6.0-5.module_el8.6.0+2881+2f24dc92', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'softhsm-devel-2.6.0-5.module_el8.6.0+2881+2f24dc92', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE}
    ]
};

var flag = 0;
var appstreams_found = 0;
foreach var module (keys(appstreams)) {
  var appstream = NULL;
  var appstream_name = NULL;
  var appstream_version = NULL;
  var appstream_split = split(module, sep:':', keep:FALSE);
  if (!empty_or_null(appstream_split)) {
    appstream_name = appstream_split[0];
    appstream_version = appstream_split[1];
    if (!empty_or_null(appstream_name)) appstream = get_one_kb_item('Host/AlmaLinux/appstream/' + appstream_name);
  }
  if (!empty_or_null(appstream) && appstream_version == appstream || appstream_name == 'all') {
    appstreams_found++;
    foreach var package_array ( appstreams[module] ) {
      var reference = NULL;
      var _release = NULL;
      var sp = NULL;
      var _cpu = NULL;
      var el_string = NULL;
      var rpm_spec_vers_cmp = NULL;
      var epoch = NULL;
      var allowmaj = NULL;
      var exists_check = NULL;
      if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
      if (!empty_or_null(package_array['release'])) _release = 'Alma-' + package_array['release'];
      if (!empty_or_null(package_array['sp'])) sp = package_array['sp'];
      if (!empty_or_null(package_array['cpu'])) _cpu = package_array['cpu'];
      if (!empty_or_null(package_array['el_string'])) el_string = package_array['el_string'];
      if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
      if (!empty_or_null(package_array['epoch'])) epoch = package_array['epoch'];
      if (!empty_or_null(package_array['allowmaj'])) allowmaj = package_array['allowmaj'];
      if (!empty_or_null(package_array['exists_check'])) exists_check = package_array['exists_check'];
      if (reference && _release && (!exists_check || rpm_exists(release:_release, rpm:exists_check))) {
        if (rpm_check(release:_release, sp:sp, cpu:_cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj)) flag++;
      }
    }
  }
}

if (!appstreams_found) audit(AUDIT_PACKAGE_NOT_INSTALLED, 'Module idm:DL1');

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, 'bind-dyndb-ldap / custodia / ipa-healthcheck / ipa-healthcheck-core / etc');
}