Vulnerabilities > CVE-2017-4916 - NULL Pointer Dereference vulnerability in VMWare Workstation Player and Workstation PRO

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

include("compat.inc");

if (description)
{
  script_id(100418);
  script_version("1.7");
  script_cvs_date("Date: 2019/11/13");

  script_cve_id("CVE-2017-4916");
  script_bugtraq_id(98560);
  script_xref(name:"VMSA", value:"2017-0009");

  script_name(english:"VMware Workstation 12.x < 12.5.6 vstor2 Driver NULL Pointer Dereference DoS (VMSA-2017-0009)");
  script_summary(english:"Checks the VMware Workstation version.");

  script_set_attribute(attribute:"synopsis", value:
"A virtualization application installed on the remote Windows host is
affected by a denial of service vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of VMware Workstation installed on the remote Windows host
is 12.x prior to 12.5.5. It is, therefore, affected by a NULL pointer
dereference flaw in the vstor2 driver. A local attacker can exploit
this to cause a denial of service condition.");
  script_set_attribute(attribute:"see_also", value:"https://www.vmware.com/security/advisories/VMSA-2017-0009.html");
  script_set_attribute(attribute:"solution", value:
"Upgrade to VMware Workstation version 12.5.6 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:N/I:N/A:C");
  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:L/UI:N/S:U/C:N/I:N/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-2017-4916");

  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:"2017/05/18");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/05/18");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/05/25");

  script_set_attribute(attribute:"potential_vulnerability", value:"true");
  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:vmware:workstation");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Windows");

  script_copyright(english:"This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("vmware_workstation_detect.nasl");
  script_require_keys("SMB/Registry/Enumerated", "installed_sw/VMware Workstation", "Settings/ParanoidReport");

  exit(0);
}

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

if (report_paranoia < 2) audit(AUDIT_PARANOID);

get_kb_item_or_exit("SMB/Registry/Enumerated");

appname = 'VMware Workstation';

install = get_single_install(app_name:appname, exit_if_unknown_ver:TRUE);
version = install['version'];
path = install['path'];

fix = '';
if (version =~ "^12\.") fix = "12.5.6";

if (!empty(fix) && ver_compare(ver:version, fix:fix, strict:FALSE) < 0)
{
  port = get_kb_item("SMB/transport");
  if (!port) port = 445;

  report =
    '\n  Path              : ' + path +
    '\n  Installed version : ' + version +
    '\n  Fixed version     : ' + fix + '\n';
  security_report_v4(port:port, extra:report, severity:SECURITY_WARNING);
}
else audit(AUDIT_INST_PATH_NOT_VULN, appname, version, path);