RHEL 8 : openstack-keystone (RHSA-2020:3105)

##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2020:3105. The text
# itself is copyright (C) Red Hat, Inc.
##

include('compat.inc');

if (description)
{
  script_id(138848);
  script_version("1.10");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/03");

  script_cve_id(
    "CVE-2020-12689",
    "CVE-2020-12690",
    "CVE-2020-12691",
    "CVE-2020-12692"
  );
  script_xref(name:"RHSA", value:"2020:3105");

  script_name(english:"RHEL 8 : openstack-keystone (RHSA-2020:3105)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat host is missing one or more security updates for openstack-keystone.");
  script_set_attribute(attribute:"description", value:
"The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as
referenced in the RHSA-2020:3105 advisory.

    The OpenStack Identity service (keystone) authenticates and authorizes
    OpenStack users by keeping track of users and their permitted activities.
    The Identity service supports multiple forms of authentication, including
    user name and password credentials, token-based systems, and AWS-style
    logins.

    Security Fix(es):

    * EC2 and credential endpoints are not protected from a scoped context
    (CVE-2020-12689)

    * OAuth1 request token authorize silently ignores roles parameter
    (CVE-2020-12690)

    * Credentials endpoint policy logic allows changing credential owner and
    target project ID (CVE-2020-12691)

    For more details about the security issue(s), including the impact, a CVSS
    score, acknowledgments, and other related information, refer to the CVE
    page 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 these issues but has instead relied only on the application's self-reported version
number.");
  # https://access.redhat.com/security/data/csaf/v2/advisories/2020/rhsa-2020_3105.json
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?ebd228e3");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/updates/classification/#important");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2020:3105");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1830384");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1830395");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1830396");
  script_set_attribute(attribute:"solution", value:
"Update the RHEL openstack-keystone package based on the guidance in RHSA-2020:3105.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:P");
  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-2020-12691");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(863);
  script_set_attribute(attribute:"vendor_severity", value:"Important");

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/05/07");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/07/22");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/07/22");

  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:"p-cpe:/a:redhat:enterprise_linux:openstack-keystone");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:python3-keystone");
  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) 2020-2024 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('rpm.inc');
include('rhel.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/RedHat/release');
if (isnull(os_release) || 'Red Hat' >!< os_release) audit(AUDIT_OS_NOT, 'Red Hat');
var os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Red Hat');
os_ver = os_ver[1];
if (!rhel_check_release(operator: 'ge', os_version: os_ver, rhel_version: '8')) audit(AUDIT_OS_NOT, 'Red Hat 8.x', 'Red Hat ' + os_ver);

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 = [
  {
    'repo_relative_urls': [
      'content/dist/layered/rhel8/ppc64le/openstack-cinderlib/16/debug',
      'content/dist/layered/rhel8/ppc64le/openstack-cinderlib/16/os',
      'content/dist/layered/rhel8/ppc64le/openstack-cinderlib/16/source/SRPMS',
      'content/dist/layered/rhel8/ppc64le/openstack-deployment-tools/16/debug',
      'content/dist/layered/rhel8/ppc64le/openstack-deployment-tools/16/os',
      'content/dist/layered/rhel8/ppc64le/openstack-deployment-tools/16/source/SRPMS',
      'content/dist/layered/rhel8/ppc64le/openstack-devtools/16/debug',
      'content/dist/layered/rhel8/ppc64le/openstack-devtools/16/os',
      'content/dist/layered/rhel8/ppc64le/openstack-devtools/16/source/SRPMS',
      'content/dist/layered/rhel8/ppc64le/openstack/16/debug',
      'content/dist/layered/rhel8/ppc64le/openstack/16/os',
      'content/dist/layered/rhel8/ppc64le/openstack/16/source/SRPMS',
      'content/dist/layered/rhel8/x86_64/openstack-cinderlib/16/debug',
      'content/dist/layered/rhel8/x86_64/openstack-cinderlib/16/os',
      'content/dist/layered/rhel8/x86_64/openstack-cinderlib/16/source/SRPMS',
      'content/dist/layered/rhel8/x86_64/openstack-deployment-tools/16/debug',
      'content/dist/layered/rhel8/x86_64/openstack-deployment-tools/16/os',
      'content/dist/layered/rhel8/x86_64/openstack-deployment-tools/16/source/SRPMS',
      'content/dist/layered/rhel8/x86_64/openstack-devtools/16/debug',
      'content/dist/layered/rhel8/x86_64/openstack-devtools/16/os',
      'content/dist/layered/rhel8/x86_64/openstack-devtools/16/source/SRPMS',
      'content/dist/layered/rhel8/x86_64/openstack/16/debug',
      'content/dist/layered/rhel8/x86_64/openstack/16/os',
      'content/dist/layered/rhel8/x86_64/openstack/16/source/SRPMS'
    ],
    'pkgs': [
      {'reference':'openstack-keystone-16.0.1-0.20200511063421.40cbb7b.el8ost', 'release':'8', 'el_string':'el8ost', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1', 'exists_check':'openstack-'},
      {'reference':'python3-keystone-16.0.1-0.20200511063421.40cbb7b.el8ost', 'release':'8', 'el_string':'el8ost', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1', 'exists_check':'openstack-'}
    ]
  }
];

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 flag = 0;
foreach var constraint_array ( constraints ) {
  var repo_relative_urls = NULL;
  if (!empty_or_null(constraint_array['repo_relative_urls'])) repo_relative_urls = constraint_array['repo_relative_urls'];
  foreach var pkg ( constraint_array['pkgs'] ) {
    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;
    var cves = NULL;
    if (!empty_or_null(pkg['reference'])) reference = pkg['reference'];
    if (!empty_or_null(pkg['release'])) _release = 'RHEL' + pkg['release'];
    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 &&
        _release &&
        rhel_decide_repo_relative_url_check(required_repo_url_list:repo_relative_urls) &&
        (applicable_repo_urls || (!exists_check || rpm_exists(release:_release, rpm:exists_check))) &&
        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, 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, 'openstack-keystone / python3-keystone');
}