SUSE SLES12 Security Update : containerd, docker (SUSE-SU-2022:1507-1)

##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# SUSE update advisory SUSE-SU-2022:1507-1. The text itself
# is copyright (C) SUSE.
##

include('compat.inc');

if (description)
{
  script_id(160493);
  script_version("1.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/07/14");

  script_cve_id(
    "CVE-2021-41190",
    "CVE-2021-43565",
    "CVE-2022-23648",
    "CVE-2022-24769",
    "CVE-2022-27191"
  );
  script_xref(name:"SuSE", value:"SUSE-SU-2022:1507-1");

  script_name(english:"SUSE SLES12 Security Update : containerd, docker (SUSE-SU-2022:1507-1)");

  script_set_attribute(attribute:"synopsis", value:
"The remote SUSE host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The remote SUSE Linux SLES12 / SLES_SAP12 host has packages installed that are affected by multiple vulnerabilities as
referenced in the SUSE-SU-2022:1507-1 advisory.

  - The OCI Distribution Spec project defines an API protocol to facilitate and standardize the distribution
    of content. In the OCI Distribution Specification version 1.0.0 and prior, the Content-Type header alone
    was used to determine the type of document during push and pull operations. Documents that contain both
    manifests and layers fields could be interpreted as either a manifest or an index in the absence of an
    accompanying Content-Type header. If a Content-Type header changed between two pulls of the same digest, a
    client may interpret the resulting content differently. The OCI Distribution Specification has been
    updated to require that a mediaType value present in a manifest or index match the Content-Type header
    used during the push and pull operations. Clients pulling from a registry may distrust the Content-Type
    header and reject an ambiguous document that contains both manifests and layers fields or manifests
    and config fields if they are unable to update to version 1.0.1 of the spec. (CVE-2021-41190)

  - The x/crypto/ssh package before 0.0.0-20211202192323-5770296d904e of golang.org/x/crypto allows an
    attacker to panic an SSH server. (CVE-2021-43565)

  - containerd is a container runtime available as a daemon for Linux and Windows. A bug was found in
    containerd prior to versions 1.6.1, 1.5.10, and 1.14.12 where containers launched through containerd's CRI
    implementation on Linux with a specially-crafted image configuration could gain access to read-only copies
    of arbitrary files and directories on the host. This may bypass any policy-based enforcement on container
    setup (including a Kubernetes Pod Security Policy) and expose potentially sensitive information.
    Kubernetes and crictl can both be configured to use containerd's CRI implementation. This bug has been
    fixed in containerd 1.6.1, 1.5.10, and 1.4.12. Users should update to these versions to resolve the issue.
    (CVE-2022-23648)

  - Moby is an open-source project created by Docker to enable and accelerate software containerization. A bug
    was found in Moby (Docker Engine) prior to version 20.10.14 where containers were incorrectly started with
    non-empty inheritable Linux process capabilities, creating an atypical Linux environment and enabling
    programs with inheritable file capabilities to elevate those capabilities to the permitted set during
    `execve(2)`. Normally, when executable programs have specified permitted file capabilities, otherwise
    unprivileged users and processes can execute those programs and gain the specified file capabilities up to
    the bounding set. Due to this bug, containers which included executable programs with inheritable file
    capabilities allowed otherwise unprivileged users and processes to additionally gain these inheritable
    file capabilities up to the container's bounding set. Containers which use Linux users and groups to
    perform privilege separation inside the container are most directly impacted. This bug did not affect the
    container security sandbox as the inheritable set never contained more capabilities than were included in
    the container's bounding set. This bug has been fixed in Moby (Docker Engine) 20.10.14. Running containers
    should be stopped, deleted, and recreated for the inheritable capabilities to be reset. This fix changes
    Moby (Docker Engine) behavior such that containers are started with a more typical Linux environment. As a
    workaround, the entry point of a container can be modified to use a utility like `capsh(1)` to drop
    inheritable capabilities prior to the primary process starting. (CVE-2022-24769)

  - The golang.org/x/crypto/ssh package before 0.0.0-20220314234659-1baeb1ce4c0b for Go allows an attacker to
    crash a server in certain circumstances involving AddHostKey. (CVE-2022-27191)

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://bugzilla.suse.com/1192814");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1193273");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1193930");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1196441");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1197284");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1197517");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-41190");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-43565");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2022-23648");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2022-24769");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2022-27191");
  # https://lists.suse.com/pipermail/sle-security-updates/2022-May/010921.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?1ba7cdc5");
  script_set_attribute(attribute:"solution", value:
"Update the affected containerd and / or docker packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2022-23648");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2021/11/17");
  script_set_attribute(attribute:"patch_publication_date", value:"2022/05/03");
  script_set_attribute(attribute:"plugin_publication_date", value:"2022/05/04");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:containerd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:docker");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2022-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  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/SuSE/release");
if (isnull(os_release) || os_release !~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "SUSE");
var os_ver = pregmatch(pattern: "^(SLE(S|D)(?:_SAP)?\d+)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'SUSE');
os_ver = os_ver[1];
if (! preg(pattern:"^(SLES12|SLES_SAP12)$", string:os_ver)) audit(AUDIT_OS_NOT, 'SUSE SLES12 / SLES_SAP12', 'SUSE (' + os_ver + ')');

if (!get_kb_item("Host/SuSE/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, 'SUSE (' + os_ver + ')', cpu);

var service_pack = get_kb_item("Host/SuSE/patchlevel");
if (isnull(service_pack)) service_pack = "0";
if (os_ver == "SLES12" && (! preg(pattern:"^(0|3|4|5)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES12 SP0/3/4/5", os_ver + " SP" + service_pack);
if (os_ver == "SLES_SAP12" && (! preg(pattern:"^(0|3|4|5)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES_SAP12 SP0/3/4/5", os_ver + " SP" + service_pack);

var pkgs = [
    {'reference':'containerd-1.5.11-16.57.1', 'sp':'0', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE-HPC-release-12', 'sle-module-containers-release-12-0', 'sles-release-12', 'sles-release-12.3', 'sles-release-12.4', 'sles-release-12.5']},
    {'reference':'containerd-1.5.11-16.57.1', 'sp':'3', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE-HPC-release-12', 'sle-module-containers-release-12-0', 'sles-release-12', 'sles-release-12.3', 'sles-release-12.4', 'sles-release-12.5']},
    {'reference':'containerd-1.5.11-16.57.1', 'sp':'4', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE-HPC-release-12', 'sle-module-containers-release-12-0', 'sles-release-12', 'sles-release-12.3', 'sles-release-12.4', 'sles-release-12.5']},
    {'reference':'containerd-1.5.11-16.57.1', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE-HPC-release-12', 'sle-module-containers-release-12-0', 'sles-release-12', 'sles-release-12.3', 'sles-release-12.4', 'sles-release-12.5']},
    {'reference':'docker-20.10.14_ce-98.80.1', 'sp':'0', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE-HPC-release-12', 'sle-module-containers-release-12-0', 'sles-release-12', 'sles-release-12.3', 'sles-release-12.4', 'sles-release-12.5']},
    {'reference':'docker-20.10.14_ce-98.80.1', 'sp':'3', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE-HPC-release-12', 'sle-module-containers-release-12-0', 'sles-release-12', 'sles-release-12.3', 'sles-release-12.4', 'sles-release-12.5']},
    {'reference':'docker-20.10.14_ce-98.80.1', 'sp':'4', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE-HPC-release-12', 'sle-module-containers-release-12-0', 'sles-release-12', 'sles-release-12.3', 'sles-release-12.4', 'sles-release-12.5']},
    {'reference':'docker-20.10.14_ce-98.80.1', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE-HPC-release-12', 'sle-module-containers-release-12-0', 'sles-release-12', 'sles-release-12.3', 'sles-release-12.4', 'sles-release-12.5']},
    {'reference':'containerd-1.5.11-16.57.1', 'sp':'0', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12', 'SLES_SAP-release-12.3', 'SLES_SAP-release-12.4', 'SLES_SAP-release-12.5']},
    {'reference':'containerd-1.5.11-16.57.1', 'sp':'3', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12', 'SLES_SAP-release-12.3', 'SLES_SAP-release-12.4', 'SLES_SAP-release-12.5']},
    {'reference':'containerd-1.5.11-16.57.1', 'sp':'4', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12', 'SLES_SAP-release-12.3', 'SLES_SAP-release-12.4', 'SLES_SAP-release-12.5']},
    {'reference':'containerd-1.5.11-16.57.1', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12', 'SLES_SAP-release-12.3', 'SLES_SAP-release-12.4', 'SLES_SAP-release-12.5']},
    {'reference':'docker-20.10.14_ce-98.80.1', 'sp':'0', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12', 'SLES_SAP-release-12.3', 'SLES_SAP-release-12.4', 'SLES_SAP-release-12.5']},
    {'reference':'docker-20.10.14_ce-98.80.1', 'sp':'3', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12', 'SLES_SAP-release-12.3', 'SLES_SAP-release-12.4', 'SLES_SAP-release-12.5']},
    {'reference':'docker-20.10.14_ce-98.80.1', 'sp':'4', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12', 'SLES_SAP-release-12.3', 'SLES_SAP-release-12.4', 'SLES_SAP-release-12.5']},
    {'reference':'docker-20.10.14_ce-98.80.1', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12', 'SLES_SAP-release-12.3', 'SLES_SAP-release-12.4', 'SLES_SAP-release-12.5']}
];

var ltss_caveat_required = FALSE;
var flag = 0;
foreach var package_array ( pkgs ) {
  var reference = NULL;
  var _release = NULL;
  var sp = NULL;
  var _cpu = NULL;
  var exists_check = NULL;
  var rpm_spec_vers_cmp = NULL;
  if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
  if (!empty_or_null(package_array['release'])) _release = 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['exists_check'])) exists_check = package_array['exists_check'];
  if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
  if (reference && _release) {
    if (exists_check) {
      var check_flag = 0;
      foreach var check (exists_check) {
        if (!rpm_exists(release:_release, rpm:check)) continue;
        check_flag++;
      }
      if (!check_flag) continue;
    }
    if (rpm_check(release:_release, sp:sp, cpu:_cpu, reference:reference, rpm_spec_vers_cmp:rpm_spec_vers_cmp)) flag++;
  }
}

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, 'containerd / docker');
}