Oracle Linux 8 : container-tools:2.0 (ELSA-2022-1566)

#%NASL_MIN_LEVEL 70300
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Oracle Linux Security Advisory ELSA-2022-1566.
##

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(160310);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/04/28");

  script_cve_id("CVE-2022-27649", "CVE-2022-27651");

  script_name(english:"Oracle Linux 8 : container-tools:2.0 (ELSA-2022-1566)");

  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-2022-1566 advisory.

  - A flaw was found in Podman, where containers were started incorrectly with non-empty default permissions.
    A vulnerability was found in Moby (Docker Engine), where containers were started incorrectly with non-
    empty inheritable Linux process capabilities. This flaw allows an attacker with access to programs with
    inheritable file capabilities to elevate those capabilities to the permitted set when execve(2) runs.
    (CVE-2022-27649)

  - A flaw was found in buildah where containers were incorrectly started with non-empty default permissions.
    A bug was found in Moby (Docker Engine) where containers were incorrectly started with non-empty
    inheritable Linux process capabilities, enabling an attacker with access to programs with inheritable file
    capabilities to elevate those capabilities to the permitted set when execve(2) runs. This has the
    potential to impact confidentiality and integrity. (CVE-2022-27651)

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-2022-1566.html");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/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: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-2022-27649");

  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:"2022/04/04");
  script_set_attribute(attribute:"patch_publication_date", value:"2022/04/28");
  script_set_attribute(attribute:"plugin_publication_date", value:"2022/04/28");

  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:"p-cpe:/a:oracle:linux:buildah");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:buildah-tests");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:cockpit-podman");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:conmon");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:container-selinux");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:containernetworking-plugins");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:containers-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:crit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:criu");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:fuse-overlayfs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:podman");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:podman-docker");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:podman-remote");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:podman-tests");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:python-podman-api");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:python3-criu");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:runc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:skopeo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:skopeo-tests");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:slirp4netns");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:udica");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Oracle Linux Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2022 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('rpm.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item('Host/OracleLinux')) audit(AUDIT_OS_NOT, 'Oracle Linux');
var release = get_kb_item("Host/RedHat/release");
if (isnull(release) || !pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux)", string:release)) audit(AUDIT_OS_NOT, 'Oracle Linux');
var os_ver = pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux) .*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Oracle Linux');
var os_ver = os_ver[1];
if (! preg(pattern:"^8([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, 'Oracle Linux 8', 'Oracle Linux ' + 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$" && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Oracle Linux', cpu);

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 appstreams = {
    'container-tools:2.0': [
      {'reference':'buildah-1.11.6-10.0.1.module+el8.5.0+20636+305c97cc', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'buildah-1.11.6-10.0.1.module+el8.5.0+20636+305c97cc', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'buildah-tests-1.11.6-10.0.1.module+el8.5.0+20636+305c97cc', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'buildah-tests-1.11.6-10.0.1.module+el8.5.0+20636+305c97cc', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'cockpit-podman-11-1.module+el8.5.0+20636+305c97cc', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'conmon-2.0.15-1.module+el8.5.0+20636+305c97cc', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2'},
      {'reference':'conmon-2.0.15-1.module+el8.5.0+20636+305c97cc', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2'},
      {'reference':'container-selinux-2.130.0-1.module+el8.5.0+20636+305c97cc', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2'},
      {'reference':'containernetworking-plugins-0.8.3-4.0.1.module+el8.5.0+20636+305c97cc', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'containernetworking-plugins-0.8.3-4.0.1.module+el8.5.0+20636+305c97cc', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'containers-common-0.1.41-4.0.1.module+el8.5.0+20636+305c97cc', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'containers-common-0.1.41-4.0.1.module+el8.5.0+20636+305c97cc', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'crit-3.12-9.module+el8.5.0+20636+305c97cc', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'crit-3.12-9.module+el8.5.0+20636+305c97cc', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'criu-3.12-9.module+el8.5.0+20636+305c97cc', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'criu-3.12-9.module+el8.5.0+20636+305c97cc', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'fuse-overlayfs-0.7.8-1.module+el8.5.0+20636+305c97cc', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'fuse-overlayfs-0.7.8-1.module+el8.5.0+20636+305c97cc', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'podman-1.6.4-28.0.1.module+el8.5.0+20636+305c97cc', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'podman-1.6.4-28.0.1.module+el8.5.0+20636+305c97cc', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'podman-docker-1.6.4-28.0.1.module+el8.5.0+20636+305c97cc', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'podman-remote-1.6.4-28.0.1.module+el8.5.0+20636+305c97cc', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'podman-remote-1.6.4-28.0.1.module+el8.5.0+20636+305c97cc', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'podman-tests-1.6.4-28.0.1.module+el8.5.0+20636+305c97cc', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'podman-tests-1.6.4-28.0.1.module+el8.5.0+20636+305c97cc', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python-podman-api-1.2.0-0.2.gitd0a45fe.module+el8.5.0+20636+305c97cc', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3-criu-3.12-9.module+el8.5.0+20636+305c97cc', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3-criu-3.12-9.module+el8.5.0+20636+305c97cc', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'runc-1.0.0-66.rc10.module+el8.5.0+20636+305c97cc', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'runc-1.0.0-66.rc10.module+el8.5.0+20636+305c97cc', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'skopeo-0.1.41-4.0.1.module+el8.5.0+20636+305c97cc', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'skopeo-0.1.41-4.0.1.module+el8.5.0+20636+305c97cc', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'skopeo-tests-0.1.41-4.0.1.module+el8.5.0+20636+305c97cc', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'skopeo-tests-0.1.41-4.0.1.module+el8.5.0+20636+305c97cc', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'slirp4netns-0.4.2-3.git21fdece.module+el8.5.0+20636+305c97cc', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'slirp4netns-0.4.2-3.git21fdece.module+el8.5.0+20636+305c97cc', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'udica-0.2.1-2.module+el8.5.0+20636+305c97cc', '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/RedHat/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;
      if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
      if (!empty_or_null(package_array['release'])) release = 'EL' + 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 (reference && release) {
        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 container-tools:2.0');

if (flag)
{
  security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      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, 'buildah / buildah-tests / cockpit-podman / etc');
}