Oracle Linux 8 : container-tools:ol8 (ELSA-2021-4154)

#%NASL_MIN_LEVEL 70300
##
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Oracle Linux Security Advisory ELSA-2021-4154.
##

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

if (description)
{
  script_id(155986);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/11/22");

  script_cve_id("CVE-2021-3602", "CVE-2021-20291");

  script_name(english:"Oracle Linux 8 : container-tools:ol8 (ELSA-2021-4154)");

  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-2021-4154 advisory.

  - buildah: Host environment variables leaked in build container when using chroot isolation (CVE-2021-3602)

  - A deadlock vulnerability was found in 'github.com/containers/storage' in versions before 1.28.1. When a
    container image is processed, each layer is unpacked using `tar`. If one of those layers is not a valid
    `tar` archive this causes an error leading to an unexpected situation where the code indefinitely waits
    for the tar unpacked stream, which never finishes. An attacker could use this vulnerability to craft a
    malicious image, which when downloaded and stored by an application using containers/storage, would then
    cause a deadlock leading to a Denial of Service (DoS). (CVE-2021-20291)

Note that Nessus has not tested for this issue 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-2021-4154.html");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/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:L/AC:L/PR:L/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-2021-3602");

  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:"2021/04/01");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/11/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/12/10");

  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:criu-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:criu-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:crun");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:fuse-overlayfs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:libslirp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:libslirp-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:oci-seccomp-bpf-hook");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:podman");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:podman-catatonit");
  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-gvproxy");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:podman-plugins");
  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:python3-criu");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:python3-podman");
  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) 2021-2023 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('audit.inc');
include('global_settings.inc');
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:ol8');
if ('ol8' >!< module_ver) audit(AUDIT_PACKAGE_NOT_AFFECTED, 'Module container-tools:' + module_ver);

var appstreams = {
    'container-tools:ol8': [
      {'reference':'buildah-1.22.3-2.0.1.module+el8.5.0+20416+d687fed7', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'buildah-1.22.3-2.0.1.module+el8.5.0+20416+d687fed7', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'buildah-tests-1.22.3-2.0.1.module+el8.5.0+20416+d687fed7', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'buildah-tests-1.22.3-2.0.1.module+el8.5.0+20416+d687fed7', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'cockpit-podman-33-1.module+el8.5.0+20416+d687fed7', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'conmon-2.0.29-1.module+el8.5.0+20416+d687fed7', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2'},
      {'reference':'conmon-2.0.29-1.module+el8.5.0+20416+d687fed7', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2'},
      {'reference':'container-selinux-2.167.0-1.module+el8.5.0+20416+d687fed7', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2'},
      {'reference':'containernetworking-plugins-1.0.0-1.module+el8.5.0+20416+d687fed7', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'containernetworking-plugins-1.0.0-1.module+el8.5.0+20416+d687fed7', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'containers-common-1-2.0.2.module+el8.5.0+20424+d687fed7', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2'},
      {'reference':'crit-3.15-3.module+el8.5.0+20416+d687fed7', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'crit-3.15-3.module+el8.5.0+20416+d687fed7', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'criu-3.15-3.module+el8.5.0+20416+d687fed7', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'criu-3.15-3.module+el8.5.0+20416+d687fed7', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'criu-devel-3.15-3.module+el8.5.0+20416+d687fed7', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'criu-devel-3.15-3.module+el8.5.0+20416+d687fed7', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'criu-libs-3.15-3.module+el8.5.0+20416+d687fed7', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'criu-libs-3.15-3.module+el8.5.0+20416+d687fed7', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'crun-1.0-1.module+el8.5.0+20416+d687fed7', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'crun-1.0-1.module+el8.5.0+20416+d687fed7', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'fuse-overlayfs-1.7.1-1.module+el8.5.0+20416+d687fed7', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'fuse-overlayfs-1.7.1-1.module+el8.5.0+20416+d687fed7', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libslirp-4.4.0-1.module+el8.5.0+20416+d687fed7', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libslirp-4.4.0-1.module+el8.5.0+20416+d687fed7', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libslirp-devel-4.4.0-1.module+el8.5.0+20416+d687fed7', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libslirp-devel-4.4.0-1.module+el8.5.0+20416+d687fed7', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'oci-seccomp-bpf-hook-1.2.3-3.module+el8.5.0+20416+d687fed7', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'oci-seccomp-bpf-hook-1.2.3-3.module+el8.5.0+20416+d687fed7', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'podman-3.3.1-9.0.1.module+el8.5.0+20416+d687fed7', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'podman-3.3.1-9.0.1.module+el8.5.0+20416+d687fed7', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'podman-catatonit-3.3.1-9.0.1.module+el8.5.0+20416+d687fed7', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'podman-catatonit-3.3.1-9.0.1.module+el8.5.0+20416+d687fed7', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'podman-docker-3.3.1-9.0.1.module+el8.5.0+20416+d687fed7', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'podman-gvproxy-3.3.1-9.0.1.module+el8.5.0+20416+d687fed7', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'podman-gvproxy-3.3.1-9.0.1.module+el8.5.0+20416+d687fed7', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'podman-plugins-3.3.1-9.0.1.module+el8.5.0+20416+d687fed7', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'podman-plugins-3.3.1-9.0.1.module+el8.5.0+20416+d687fed7', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'podman-remote-3.3.1-9.0.1.module+el8.5.0+20416+d687fed7', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'podman-remote-3.3.1-9.0.1.module+el8.5.0+20416+d687fed7', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'podman-tests-3.3.1-9.0.1.module+el8.5.0+20416+d687fed7', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'podman-tests-3.3.1-9.0.1.module+el8.5.0+20416+d687fed7', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3-criu-3.15-3.module+el8.5.0+20416+d687fed7', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3-criu-3.15-3.module+el8.5.0+20416+d687fed7', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3-podman-3.2.0-2.module+el8.5.0+20416+d687fed7', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'runc-1.0.2-1.module+el8.5.0+20416+d687fed7', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'runc-1.0.2-1.module+el8.5.0+20416+d687fed7', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'skopeo-1.4.2-0.1.0.1.module+el8.5.0+20416+d687fed7', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'skopeo-1.4.2-0.1.0.1.module+el8.5.0+20416+d687fed7', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'skopeo-tests-1.4.2-0.1.0.1.module+el8.5.0+20416+d687fed7', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'skopeo-tests-1.4.2-0.1.0.1.module+el8.5.0+20416+d687fed7', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'slirp4netns-1.1.8-1.module+el8.5.0+20416+d687fed7', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'slirp4netns-1.1.8-1.module+el8.5.0+20416+d687fed7', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'udica-0.2.5-2.module+el8.5.0+20416+d687fed7', '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:ol8');

if (flag)
{
  security_report_v4(
      port       : 0,
      severity   : SECURITY_NOTE,
      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');
}