Virtuozzo 7 : readykernel-patch (VZA-2018-088)

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#

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

if (description)
{
  script_id(121103);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");

  script_cve_id(
    "CVE-2018-9568"
  );

  script_name(english:"Virtuozzo 7 : readykernel-patch (VZA-2018-088)");
  script_summary(english:"Checks the readykernel output for the updated patch.");

  script_set_attribute(attribute:"synopsis", value:
"The remote Virtuozzo host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"According to the version of the vzkernel package and the
readykernel-patch installed, the Virtuozzo installation on the remote
host is affected by the following vulnerability :

  - Transforming an IPv6 socket to an IPv4 and then
    transforming it back to a listening socket could result
    in a kernel memory corruption. An unprivileged user on
    the host or in a container could exploit this to crash
    the kernel.

Note that Tenable Network Security has extracted the preceding
description block directly from the Virtuozzo security advisory.
Tenable has attempted to automatically clean and format it as much as
possible without introducing additional issues.");
  script_set_attribute(attribute:"see_also", value:"https://virtuozzosupport.force.com/s/article/VZA-2018-088");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1655904");
  # https://readykernel.com/patch/Virtuozzo-7/readykernel-patch-30.15-68.2-1.vl7/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?03ab9b3b");
  # https://readykernel.com/patch/Virtuozzo-7/readykernel-patch-33.22-68.2-1.vl7/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?d6a65883");
  # https://readykernel.com/patch/Virtuozzo-7/readykernel-patch-37.30-68.2-1.vl7/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?2fc39cff");
  # https://readykernel.com/patch/Virtuozzo-7/readykernel-patch-40.4-68.2-1.vl7/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?e2c533b3");
  # https://readykernel.com/patch/Virtuozzo-7/readykernel-patch-43.10-68.2-1.vl7/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?08ece50d");
  # https://readykernel.com/patch/Virtuozzo-7/readykernel-patch-46.7-68.2-1.vl7/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?3ac589cf");
  # https://readykernel.com/patch/Virtuozzo-7/readykernel-patch-48.2-68.2-1.vl7/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?ef1732c7");
  # https://readykernel.com/patch/Virtuozzo-7/readykernel-patch-63.3-68.2-1.vl7/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?6416f74a");
  # https://readykernel.com/patch/Virtuozzo-7/readykernel-patch-64.7-68.2-1.vl7/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?defd02a6");
  script_set_attribute(attribute:"solution", value:"Update the readykernel patch.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/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:L/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:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"patch_publication_date", value:"2018/12/17");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/01/11");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:virtuozzo:virtuozzo:readykernel");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:virtuozzo:virtuozzo:7");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2019-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Virtuozzo/release", "Host/Virtuozzo/rpm-list", "Host/readykernel-info");

  exit(0);
}

include("global_settings.inc");
include("readykernel.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);

release = get_kb_item("Host/Virtuozzo/release");
if (isnull(release) || "Virtuozzo" >!< release) audit(AUDIT_OS_NOT, "Virtuozzo");
os_ver = pregmatch(pattern: "Virtuozzo Linux release ([0-9]+\.[0-9])(\D|$)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Virtuozzo");
os_ver = os_ver[1];
if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Virtuozzo 7.x", "Virtuozzo " + os_ver);

if (!get_kb_item("Host/Virtuozzo/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Virtuozzo", cpu);

rk_info = get_kb_item("Host/readykernel-info");
if (empty_or_null(rk_info)) audit(AUDIT_UNKNOWN_APP_VER, "Virtuozzo");

checks = make_list2(
  make_array(
    "kernel","vzkernel-3.10.0-514.16.1.vz7.30.15",
    "patch","readykernel-patch-30.15-68.2-1.vl7"
  ),
  make_array(
    "kernel","vzkernel-3.10.0-514.26.1.vz7.33.22",
    "patch","readykernel-patch-33.22-68.2-1.vl7"
  ),
  make_array(
    "kernel","vzkernel-3.10.0-693.1.1.vz7.37.30",
    "patch","readykernel-patch-37.30-68.2-1.vl7"
  ),
  make_array(
    "kernel","vzkernel-3.10.0-693.11.6.vz7.40.4",
    "patch","readykernel-patch-40.4-68.2-1.vl7"
  ),
  make_array(
    "kernel","vzkernel-3.10.0-693.17.1.vz7.43.10",
    "patch","readykernel-patch-43.10-68.2-1.vl7"
  ),
  make_array(
    "kernel","vzkernel-3.10.0-693.21.1.vz7.46.7",
    "patch","readykernel-patch-46.7-68.2-1.vl7"
  ),
  make_array(
    "kernel","vzkernel-3.10.0-693.21.1.vz7.48.2",
    "patch","readykernel-patch-48.2-68.2-1.vl7"
  ),
  make_array(
    "kernel","vzkernel-3.10.0-862.9.1.vz7.63.3",
    "patch","readykernel-patch-63.3-68.2-1.vl7"
  ),
  make_array(
    "kernel","vzkernel-3.10.0-862.11.6.vz7.64.7",
    "patch","readykernel-patch-64.7-68.2-1.vl7"
  )
);
readykernel_execute_checks(checks:checks, severity:SECURITY_HOLE, release:"Virtuozzo-7");