Vulnerabilities > CVE-2016-0034 - Unspecified vulnerability in Microsoft Silverlight

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

include("compat.inc");

if (description)
{
  script_id(87874);
  script_version("1.11");
  script_cvs_date("Date: 2019/11/22");

  script_cve_id("CVE-2016-0034");
  script_xref(name:"MSFT", value:"MS16-006");
  script_xref(name:"MSKB", value:"3126036");

  script_name(english:"MS16-006: Security Update for Silverlight to Address Remote Code Execution (3126036) (Mac OS X)");
  script_summary(english:"Checks the version of Microsoft Silverlight.");

  script_set_attribute(attribute:"synopsis", value:
"A multimedia application framework installed on the remote Mac OS X
host is affected by a remote code execution vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of Microsoft Silverlight installed on the remote Mac OS X
host is affected by a remote code execution vulnerability due to a
flaw that allows strings to be decoded by a malicious decoder that
returns negative offsets. An unauthenticated, remote attacker can
exploit this vulnerability, by convincing a user to visit a website
containing a specially crafted Silverlight application, to replace
object headers with contents provided by the attacker, resulting in
the execution of arbitrary code in the context of the current user.");
  script_set_attribute(attribute:"see_also", value:"http://technet.microsoft.com/en-us/security/bulletin/ms16-006");
  script_set_attribute(attribute:"solution", value:
"Microsoft has released a set of patches 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:H/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:H/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2016-0034");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");
  script_set_attribute(attribute:"exploit_framework_canvas", value:"true");
  script_set_attribute(attribute:"canvas_package", value:'CANVAS');

  script_set_attribute(attribute:"vuln_publication_date", value:"2016/01/12");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/01/12");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/01/12");

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

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

  script_copyright(english:"This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  exit(0);
}

include("audit.inc");
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 = "MS16-006";
kb = "3126036";

fixed_version = "5.1.41212.0";
if (version =~ "^5\." && 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 audit(AUDIT_INST_VER_NOT_VULN, "Microsoft Silverlight", version);