Microsoft Security Essentials Remote Code Execution Vulnerability (Jul 2017)

# SPDX-FileCopyrightText: 2017 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.811492");
  script_version("2024-02-20T05:05:48+0000");
  script_cve_id("CVE-2017-8558");
  script_tag(name:"cvss_base", value:"9.3");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:C/I:C/A:C");
  script_tag(name:"last_modification", value:"2024-02-20 05:05:48 +0000 (Tue, 20 Feb 2024)");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2019-10-03 00:03:00 +0000 (Thu, 03 Oct 2019)");
  script_tag(name:"creation_date", value:"2017-07-14 14:07:22 +0530 (Fri, 14 Jul 2017)");
  script_tag(name:"qod_type", value:"executable_version");
  script_name("Microsoft Security Essentials Remote Code Execution Vulnerability (Jul 2017)");

  script_tag(name:"summary", value:"Security Essentials is prone to a remote code execution (RCE) vulnerability.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");

  script_tag(name:"insight", value:"The flaw exists as the Microsoft Malware
  Protection Engine does not properly scan a specially crafted file leading to
  memory corruption.");

  script_tag(name:"impact", value:"Successful exploitation will allow an attacker
  to execute arbitrary code in the security context of the LocalSystem account and
  take control of the system. An attacker could then install programs. View, change,
  or delete data or create new accounts with full user rights.");

  script_tag(name:"affected", value:"Microsoft Security Essentials.");

  script_tag(name:"solution", value:"Microsoft Malware Protection Engine's built-in
  mechanism for the automatic detection and deployment of updates will apply the
  update within 48 hours of release.");

  script_tag(name:"solution_type", value:"VendorFix");
  script_xref(name:"URL", value:"https://support.microsoft.com/en-us/help/2510781");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/99262");
  script_xref(name:"URL", value:"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8558");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2017 Greenbone AG");
  script_family("Windows : Microsoft Bulletins");
  script_dependencies("smb_reg_service_pack.nasl");
  script_require_ports(139, 445);
  script_mandatory_keys("SMB/WindowsVersion");
  exit(0);
}

include("smb_nt.inc");
include("secpod_reg.inc");
include("version_func.inc");

key = "SOFTWARE\Microsoft\Microsoft Antimalware";
if(!registry_key_exists(key:key)){
  exit(0);
}

def_version = registry_get_sz(key:"SOFTWARE\Microsoft\Microsoft Antimalware\Signature Updates",
                              item:"EngineVersion");
if(!def_version){
  exit(0);
}

##First version of the Microsoft Malware Protection Engine with this vulnerability addressed
if(version_is_less(version:def_version, test_version:"1.1.13903.0"))
{
   report = 'Installed version : ' + def_version + '\n' +
            'Vulnerable range: Less than 1.1.13903.0';
   security_message(data:report);
   exit(0);
}
exit(0);