macOS : Apple Safari 11.1 APPLE-SA-2018-04-24-3 Multiple Vulnerabilities

#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(109392);
  script_version("1.4");
  script_cvs_date("Date: 2019/11/08");

  script_cve_id("CVE-2018-4200", "CVE-2018-4204");
  script_bugtraq_id(103961);

  script_name(english:"macOS : Apple Safari 11.1 APPLE-SA-2018-04-24-3 Multiple Vulnerabilities");
  script_summary(english:"Checks the Safari version.");

  script_set_attribute(attribute:"synopsis", value:
"A web browser installed on the remote macOS or Mac OS X host is
affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The version of Apple Safari installed on the remote macOS or Mac OS X
host is 11.1, but is missing the security fix APPLE-SA-2018-04-24-3.
It is, therefore, affected by multiple vulnerabilities as described
in the HT208741 security advisory.");
  script_set_attribute(attribute:"see_also", value:"https://support.apple.com/en-us/HT208741");
  # https://lists.apple.com/archives/security-announce/2018/Apr/msg00002.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?d7646406");
  script_set_attribute(attribute:"solution", value:
"Apply the security fix APPLE-SA-2018-04-24-3.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/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:L/PR:N/UI:R/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-2018-4204");

  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:"2018/04/24");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/04/24");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/04/27");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:apple:safari");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("macosx_Safari31.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/MacOSX/Version", "MacOSX/Safari/Installed", "MacOSX/Safari/Detailed_Version");

  exit(0);
}

include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
os = get_kb_item("Host/MacOSX/Version");
if (!os) audit(AUDIT_OS_NOT, "Mac OS X or macOS");

if (!preg(pattern:"Mac OS X 10\.(11|12|13)([^0-9]|$)", string:os))
{
  audit(AUDIT_OS_NOT, "Mac OS X El Capitan 10.11 / macOS Sierra 10.12 / macOS High Sierra 10.13");
} 

installed = get_kb_item_or_exit("MacOSX/Safari/Installed", exit_code:0);
path      = get_kb_item_or_exit("MacOSX/Safari/Path", exit_code:1);
version   = get_kb_item_or_exit("MacOSX/Safari/Version", exit_code:1);
detailed_version   = get_kb_item_or_exit("MacOSX/Safari/Detailed_Version", exit_code:1);

fixed_version = "11.1";

if (preg(pattern:"Mac OS X 10\.13\.2($|[^0-9])", string:os))
  detailed_fixed_version = "13605.1.33.1.4";
else if (preg(pattern:"Mac OS X 10\.12\.6($|[^0-9])", string:os))
  detailed_fixed_version = "12605.1.33.1.4";
else if (preg(pattern:"Mac OS X 10\.11\.6($|[^0-9])", string:os))
  detailed_fixed_version = "11605.1.33.1.4";
else audit(AUDIT_INST_PATH_NOT_VULN, "Safari", version + " (" + detailed_version + ")", path);

if (ver_compare(ver:version, fix:fixed_version, strict:FALSE) == -1)
{
  report = report_items_str(
    report_items:make_array(
      "Path", path,
      "Installed version", version,
      "Fixed version", fixed_version
    ),
    ordered_fields:make_list("Path", "Installed version", "Fixed version")
  );
  security_report_v4(port:0, severity:SECURITY_WARNING, extra:report);
}
else if (
  ver_compare(ver:version, fix:fixed_version, strict:FALSE) == 0 &&
  ver_compare(ver:detailed_version, fix:detailed_fixed_version, strict:FALSE) == -1
)
{
  report = report_items_str(
    report_items:make_array(
      "Path", path,
      "Installed version", version,
      "Fixed version", fixed_version,
      "Installed detailed version", detailed_version,
      "Fixed detailed version", detailed_fixed_version
    ),
    ordered_fields:make_list("Path", "Installed version", "Fixed version", "Installed detailed version", "Fixed detailed version")
  );
  security_report_v4(port:0, severity:SECURITY_WARNING, extra:report);
}
else audit(AUDIT_INST_PATH_NOT_VULN, "Safari", version + " (" + detailed_version + ")", path);