SUSE SLES15 / openSUSE 15 Security Update : podman (SUSE-SU-2023:0187-1)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# SUSE update advisory SUSE-SU-2023:0187-1. The text itself
# is copyright (C) SUSE.
##

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

if (description)
{
  script_id(170750);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/07/13");

  script_cve_id(
    "CVE-2021-4024",
    "CVE-2021-20199",
    "CVE-2021-20206",
    "CVE-2021-41190",
    "CVE-2022-2989",
    "CVE-2022-27649"
  );
  script_xref(name:"SuSE", value:"SUSE-SU-2023:0187-1");

  script_name(english:"SUSE SLES15 / openSUSE 15 Security Update : podman (SUSE-SU-2023:0187-1)");

  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 SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by multiple
vulnerabilities as referenced in the SUSE-SU-2023:0187-1 advisory.

  - Rootless containers run with Podman, receive all traffic with a source IP address of 127.0.0.1 (including
    from remote hosts). This impacts containerized applications that trust localhost (127.0.01) connections by
    default and do not require authentication. This issue affects Podman 1.8.0 onwards. (CVE-2021-20199)

  - An improper limitation of path name flaw was found in containernetworking/cni in versions before 0.8.1.
    When specifying the plugin to load in the 'type' field in the network configuration, it is possible to use
    special elements such as ../ separators to reference binaries elsewhere on the system. This flaw allows
    an attacker to execute other existing binaries other than the cni plugins/types, such as 'reboot'. The
    highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
    (CVE-2021-20206)

  - A flaw was found in podman. The `podman machine` function (used to create and manage Podman virtual
    machine containing a Podman process) spawns a `gvproxy` process on the host system. The `gvproxy` API is
    accessible on port 7777 on all IP addresses on the host. If that port is open on the host's firewall, an
    attacker can potentially use the `gvproxy` API to forward ports on the host to ports in the VM, making
    private services on the VM accessible to the network. This issue could be also used to interrupt the
    host's services by forwarding all ports to the VM. (CVE-2021-4024)

  - 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)

  - 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)

  - An incorrect handling of the supplementary groups in the Podman container engine might lead to the
    sensitive information disclosure or possible data modification if an attacker has direct access to the
    affected container where supplementary groups are used to set access permissions and is able to execute a
    binary code in that container. (CVE-2022-2989)

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/1181640");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1181961");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1193166");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1193273");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1197672");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1199790");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1202809");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-20199");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-20206");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-4024");
  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-2022-27649");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2022-2989");
  # https://lists.suse.com/pipermail/sle-security-updates/2023-January/013557.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?d8ba7d5a");
  script_set_attribute(attribute:"solution", value:
"Update the affected podman, podman-cni-config, podman-docker and / or podman-remote packages.");
  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:POC/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:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-20206");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2022-27649");

  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:"2021/02/02");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/01/27");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/01/28");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:podman");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:podman-cni-config");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:podman-docker");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:podman-remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:15");
  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) 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|SUSE)") audit(AUDIT_OS_NOT, "SUSE / openSUSE");
var os_ver = pregmatch(pattern: "^(SLE(S|D)(?:_SAP)?\d+|SUSE([\d.]+))", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'SUSE / openSUSE');
os_ver = os_ver[1];
if (! preg(pattern:"^(SLES15|SLES_SAP15|SUSE15\.4)$", string:os_ver)) audit(AUDIT_OS_NOT, 'SUSE SLES15 / SLES_SAP15 / openSUSE 15', 'SUSE / openSUSE (' + 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 / openSUSE (' + os_ver + ')', cpu);

var service_pack = get_kb_item("Host/SuSE/patchlevel");
if (isnull(service_pack)) service_pack = "0";
if (os_ver == "SLES15" && (! preg(pattern:"^(4)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES15 SP4", os_ver + " SP" + service_pack);
if (os_ver == "SLES_SAP15" && (! preg(pattern:"^(4)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES_SAP15 SP4", os_ver + " SP" + service_pack);

var pkgs = [
    {'reference':'podman-4.3.1-150400.4.11.1', 'sp':'4', 'release':'SLES_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.4']},
    {'reference':'podman-cni-config-4.3.1-150400.4.11.1', 'sp':'4', 'release':'SLES_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.4']},
    {'reference':'podman-docker-4.3.1-150400.4.11.1', 'sp':'4', 'release':'SLES_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.4']},
    {'reference':'podman-remote-4.3.1-150400.4.11.1', 'sp':'4', 'release':'SLES_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.4']},
    {'reference':'podman-4.3.1-150400.4.11.1', 'sp':'4', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.4', 'sle-module-containers-release-15.4', 'sles-release-15.4']},
    {'reference':'podman-cni-config-4.3.1-150400.4.11.1', 'sp':'4', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.4', 'sle-module-containers-release-15.4', 'sles-release-15.4']},
    {'reference':'podman-docker-4.3.1-150400.4.11.1', 'sp':'4', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.4', 'sle-module-containers-release-15.4', 'sles-release-15.4']},
    {'reference':'podman-remote-4.3.1-150400.4.11.1', 'sp':'4', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.4', 'sle-module-containers-release-15.4', 'sles-release-15.4']},
    {'reference':'podman-4.3.1-150400.4.11.1', 'release':'SUSE15.4', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['openSUSE-release-15.4']},
    {'reference':'podman-cni-config-4.3.1-150400.4.11.1', 'release':'SUSE15.4', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['openSUSE-release-15.4']},
    {'reference':'podman-docker-4.3.1-150400.4.11.1', 'release':'SUSE15.4', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['openSUSE-release-15.4']},
    {'reference':'podman-remote-4.3.1-150400.4.11.1', 'release':'SUSE15.4', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['openSUSE-release-15.4']}
];

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, 'podman / podman-cni-config / podman-docker / podman-remote');
}