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nessusThis script is Copyright (C) 2021-2024 and is owned by Tenable, Inc. or an Affiliate thereof.REDHAT-RHSA-2021-0710.NASL
HistoryMar 03, 2021 - 12:00 a.m.

RHEL 8 : container-tools:2.0 (RHSA-2021:0710)

2021-03-0300:00:00
This script is Copyright (C) 2021-2024 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
19

CVSS2

6.9

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:M/Au:N/C:C/I:C/A:C

CVSS3

7

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

AI Score

6.9

Confidence

High

EPSS

0

Percentile

12.6%

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2021:0710 advisory.

  • podman: container users permissions are not respected in privileged containers (CVE-2021-20188)

Note that Nessus has not tested for this issue but has instead relied only on the application’s self-reported version number.

##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2021:0710. The text
# itself is copyright (C) Red Hat, Inc.
##

include('compat.inc');

if (description)
{
  script_id(147009);
  script_version("1.12");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/04/28");

  script_cve_id("CVE-2021-20188");
  script_xref(name:"RHSA", value:"2021:0710");

  script_name(english:"RHEL 8 : container-tools:2.0 (RHSA-2021:0710)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat host is missing a security update for container-tools:2.0.");
  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-2021:0710 advisory.

  - podman: container users permissions are not respected in privileged containers (CVE-2021-20188)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  # https://access.redhat.com/security/data/csaf/v2/advisories/2021/rhsa-2021_0710.json
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?2aa3bd29");
  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-2021:0710");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1915734");
  script_set_attribute(attribute:"solution", value:
"Update the RHEL container-tools:2.0 package based on the guidance in RHSA-2021:0710.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/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:L/AC:H/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-2021-20188");

  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:"2021/02/11");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/03/03");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/03/03");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:rhel_eus:8.2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:buildah");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:buildah-tests");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:cockpit-podman");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:conmon");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:container-selinux");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:containernetworking-plugins");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:containers-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:crit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:criu");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:fuse-overlayfs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:podman");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:podman-docker");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:podman-remote");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:podman-tests");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:python-podman-api");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:python3-criu");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:runc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:skopeo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:skopeo-tests");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:slirp4netns");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:toolbox");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:udica");
  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) 2021-2024 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: 'eq', os_version: os_ver, rhel_version: '8.2')) audit(AUDIT_OS_NOT, 'Red Hat 8.2', '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 appstreams = {
  'container-tools:2.0': [
    {
      'repo_relative_urls': [
        'content/aus/rhel8/8.2/x86_64/appstream/debug',
        'content/aus/rhel8/8.2/x86_64/appstream/os',
        'content/aus/rhel8/8.2/x86_64/appstream/source/SRPMS',
        'content/e4s/rhel8/8.2/ppc64le/appstream/debug',
        'content/e4s/rhel8/8.2/ppc64le/appstream/os',
        'content/e4s/rhel8/8.2/ppc64le/appstream/source/SRPMS',
        'content/e4s/rhel8/8.2/x86_64/appstream/debug',
        'content/e4s/rhel8/8.2/x86_64/appstream/os',
        'content/e4s/rhel8/8.2/x86_64/appstream/source/SRPMS',
        'content/eus/rhel8/8.2/aarch64/appstream/debug',
        'content/eus/rhel8/8.2/aarch64/appstream/os',
        'content/eus/rhel8/8.2/aarch64/appstream/source/SRPMS',
        'content/eus/rhel8/8.2/ppc64le/appstream/debug',
        'content/eus/rhel8/8.2/ppc64le/appstream/os',
        'content/eus/rhel8/8.2/ppc64le/appstream/source/SRPMS',
        'content/eus/rhel8/8.2/s390x/appstream/debug',
        'content/eus/rhel8/8.2/s390x/appstream/os',
        'content/eus/rhel8/8.2/s390x/appstream/source/SRPMS',
        'content/eus/rhel8/8.2/x86_64/appstream/debug',
        'content/eus/rhel8/8.2/x86_64/appstream/os',
        'content/eus/rhel8/8.2/x86_64/appstream/source/SRPMS',
        'content/tus/rhel8/8.2/x86_64/appstream/debug',
        'content/tus/rhel8/8.2/x86_64/appstream/os',
        'content/tus/rhel8/8.2/x86_64/appstream/source/SRPMS'
      ],
      'pkgs': [
        {'reference':'buildah-1.11.6-7.module+el8.2.0+9938+46853747', 'sp':'2', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
        {'reference':'buildah-tests-1.11.6-7.module+el8.2.0+9938+46853747', 'sp':'2', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
        {'reference':'cockpit-podman-11-1.module+el8.2.0+9938+46853747', 'sp':'2', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':TRUE},
        {'reference':'conmon-2.0.6-1.module+el8.2.0+9938+46853747', 'sp':'2', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2'},
        {'reference':'container-selinux-2.124.0-1.module+el8.2.0+9938+46853747', 'sp':'2', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2'},
        {'reference':'containernetworking-plugins-0.8.3-4.module+el8.2.0+9938+46853747', 'sp':'2', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
        {'reference':'containers-common-0.1.40-9.module+el8.2.0+9938+46853747', 'sp':'2', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
        {'reference':'crit-3.12-9.module+el8.2.0+9938+46853747', 'sp':'2', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
        {'reference':'criu-3.12-9.module+el8.2.0+9938+46853747', 'sp':'2', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
        {'reference':'fuse-overlayfs-0.7.2-5.module+el8.2.0+9938+46853747', 'sp':'2', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
        {'reference':'podman-1.6.4-19.module+el8.2.0+10175+e12b0910', 'sp':'2', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
        {'reference':'podman-docker-1.6.4-19.module+el8.2.0+10175+e12b0910', 'sp':'2', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
        {'reference':'podman-remote-1.6.4-19.module+el8.2.0+10175+e12b0910', 'sp':'2', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
        {'reference':'podman-tests-1.6.4-19.module+el8.2.0+10175+e12b0910', 'sp':'2', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
        {'reference':'python-podman-api-1.2.0-0.2.gitd0a45fe.module+el8.2.0+9938+46853747', 'sp':'2', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
        {'reference':'python3-criu-3.12-9.module+el8.2.0+9938+46853747', 'sp':'2', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
        {'reference':'runc-1.0.0-64.rc10.module+el8.2.0+9938+46853747', 'sp':'2', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
        {'reference':'skopeo-0.1.40-9.module+el8.2.0+9938+46853747', 'sp':'2', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
        {'reference':'skopeo-tests-0.1.40-9.module+el8.2.0+9938+46853747', 'sp':'2', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
        {'reference':'slirp4netns-0.4.2-3.git21fdece.module+el8.2.0+9938+46853747', 'sp':'2', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
        {'reference':'toolbox-0.0.7-1.module+el8.2.0+9938+46853747', 'sp':'2', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
        {'reference':'udica-0.2.1-2.module+el8.2.0+9938+46853747', 'sp':'2', 'release':'8', 'rpm_spec_vers_cmp':TRUE}
      ]
    }
  ]
};

var applicable_repo_urls = rhel_determine_applicable_repository_urls(constraints:appstreams, appstreams:TRUE);
if(applicable_repo_urls == RHEL_REPOS_NO_OVERLAP_MESSAGE) exit(0, RHEL_REPO_NOT_ENABLED);

var module_ver = get_kb_item('Host/RedHat/appstream/container-tools');
if (isnull(module_ver)) audit(AUDIT_PACKAGE_NOT_INSTALLED, 'Module container-tools:2.0');
if ('2.0' >!< module_ver) audit(AUDIT_PACKAGE_NOT_AFFECTED, 'Module container-tools:' + module_ver);

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/RedHat/appstream/' + appstream_name);
  }
  if (!empty_or_null(appstream) && appstream_version == appstream || appstream_name == 'all') {
    appstreams_found++;
    foreach var module_array ( appstreams[module] ) {
      var repo_relative_urls = NULL;
      if (!empty_or_null(module_array['repo_relative_urls'])) repo_relative_urls = module_array['repo_relative_urls'];
      foreach var package_array ( module_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(package_array['reference'])) reference = package_array['reference'];
        if (!empty_or_null(package_array['release'])) _release = 'RHEL' + 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 (!empty_or_null(package_array['cves'])) cves = package_array['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 (!appstreams_found) audit(AUDIT_PACKAGE_NOT_INSTALLED, 'Module container-tools:2.0');

if (flag)
{
  var subscription_caveat = '\n' +
    'NOTE: This vulnerability check contains fixes that apply to\n' +
    'packages only available in the Red Hat Enterprise Linux\n' +
    'Extended Update Support repository.\n' +
    'Access to this repository requires a paid RHEL subscription.\n';
  var extra = NULL;
  if (isnull(applicable_repo_urls) || !applicable_repo_urls) extra = subscription_caveat + rpm_report_get() + redhat_report_repo_caveat();
  else extra = subscription_caveat + 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, 'buildah / buildah-tests / cockpit-podman / conmon / etc');
}
VendorProductVersionCPE
redhatrhel_eus8.2cpe:/o:redhat:rhel_eus:8.2
redhatenterprise_linuxbuildahp-cpe:/a:redhat:enterprise_linux:buildah
redhatenterprise_linuxbuildah-testsp-cpe:/a:redhat:enterprise_linux:buildah-tests
redhatenterprise_linuxcockpit-podmanp-cpe:/a:redhat:enterprise_linux:cockpit-podman
redhatenterprise_linuxconmonp-cpe:/a:redhat:enterprise_linux:conmon
redhatenterprise_linuxcontainer-selinuxp-cpe:/a:redhat:enterprise_linux:container-selinux
redhatenterprise_linuxcontainernetworking-pluginsp-cpe:/a:redhat:enterprise_linux:containernetworking-plugins
redhatenterprise_linuxcontainers-commonp-cpe:/a:redhat:enterprise_linux:containers-common
redhatenterprise_linuxcritp-cpe:/a:redhat:enterprise_linux:crit
redhatenterprise_linuxcriup-cpe:/a:redhat:enterprise_linux:criu
Rows per page:
1-10 of 231

CVSS2

6.9

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:M/Au:N/C:C/I:C/A:C

CVSS3

7

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

AI Score

6.9

Confidence

High

EPSS

0

Percentile

12.6%