MS13-052: Vulnerability in Silverlight Could Allow Remote Code Execution (2861561) (Mac OS X)

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

include("compat.inc");

if (description)
{
  script_id(67208);
  script_version("1.7");
  script_cvs_date("Date: 2018/07/14  1:59:36");

  script_cve_id("CVE-2013-3178");
  script_bugtraq_id(60938);
  script_xref(name:"MSFT", value:"MS13-052");
  script_xref(name:"IAVB", value:"2013-B-0071");
  script_xref(name:"MSKB", value:"2847559");

  script_name(english:"MS13-052: Vulnerability in Silverlight Could Allow Remote Code Execution (2861561) (Mac OS X)");
  script_summary(english:"Checks version of Microsoft Silverlight");

  script_set_attribute(
    attribute:"synopsis",
    value:
"A multimedia application framework installed on the remote Mac OS X
host is affected a remote code execution vulnerability."
  );
  script_set_attribute(
    attribute:"description",
    value:
"The version of Microsoft Silverlight installed on the remote host
reportedly handles a dereference to a NULL pointer incorrectly.

If an attacker could trick a user on the affected system into visiting a
website hosting a malicious Silverlight application, the attacker could
leverage this vulnerability to execute arbitrary code on the affected
system, subject to the user's privileges."
  );
  script_set_attribute(attribute:"see_also", value:"http://technet.microsoft.com/en-us/security/bulletin/ms13-052");
  script_set_attribute(attribute:"solution", value:"Microsoft has released a patch for Silverlight 5.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2013/07/09");
  script_set_attribute(attribute:"patch_publication_date", value:"2013/07/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/07/10");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:silverlight");
  script_set_attribute(attribute:"stig_severity", value:"II");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2013-2018 Tenable Network Security, Inc.");

  script_dependencies("macosx_silverlight_installed.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/MacOSX/Version", "MacOSX/Silverlight/Installed");

  exit(0);
}


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


kb_base = "MacOSX/Silverlight";
get_kb_item_or_exit(kb_base+"/Installed");
path = get_kb_item_or_exit(kb_base+"/Path", exit_code:1);
version = get_kb_item_or_exit(kb_base+"/Version", exit_code:1);


bulletin = "MS13-052";
fixed_version = "";

# nb: Multiple installs of Silverlight are not possible.
if (version =~ "^5\.")
{
  fixed_version = "5.1.20513.0";
  kb = "2847559";
}

if (fixed_version && ver_compare(ver:version, fix:fixed_version, strict:FALSE) < 0)
{
  if (defined_func("report_xml_tag")) report_xml_tag(tag:bulletin, value:kb);

  if (report_verbosity > 0)
  {
    report =
      '\n  Path              : ' + path +
      '\n  Installed version : ' + version +
      '\n  Fixed version     : '+fixed_version +
      '\n';
    security_hole(port:0, extra:report);
  }
  else security_hole(0);
  exit(0);
}
else exit(0, "The Microsoft Silverlight "+version+" install is not reported to be affected.");