Microsoft Security Essentials Multiple RCE Vulnerabilities

# 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("1.3.6.1.4.1.25623.1.0.812239");
  script_version("2025-08-05T05:45:17+0000");
  script_cve_id("CVE-2017-11937", "CVE-2017-11940");
  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:"2025-08-05 05:45:17 +0000 (Tue, 05 Aug 2025)");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2018-10-30 16:27:00 +0000 (Tue, 30 Oct 2018)");
  script_tag(name:"creation_date", value:"2017-12-08 11:55:19 +0530 (Fri, 08 Dec 2017)");
  script_tag(name:"qod_type", value:"executable_version");
  script_name("Microsoft Security Essentials Multiple RCE Vulnerabilities");

  script_tag(name:"summary", value:"This host is missing an important security
  update according to Microsoft Security Updates released for Microsoft Malware
  Protection Engine (MPE) dated 12/06/2017");

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

  script_tag(name:"insight", value:"Multiple flaws exist when the Microsoft
  Malware Protection Engine (MPE) 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

  - create new accounts with full user rights.");

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

  script_tag(name:"solution", value:"Run the Windows Update to update the malware
  protection engine to the latest version available. Typically, no action is
  required as the built-in mechanism for the automatic detection and deployment
  of updates will apply the update itself.");

  script_tag(name:"solution_type", value:"VendorFix");

  script_xref(name:"URL", value:"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11937");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/102070");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/102104");
  script_xref(name:"URL", value:"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11940");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2017 Greenbone AG");
  script_family("Windows");
  script_dependencies("smb_reg_service_pack.nasl",
  "gb_ms_security_essentials_smb_login_detect.nasl");

  script_mandatory_keys("SMB/WindowsVersion", "microsoft/security_essentials/mpe_version");
  exit(0);
}

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

mpe_version = get_kb_item("microsoft/security_essentials/mpe_version");
if(!mpe_version)
  exit(0);

##Last version of the Microsoft Malware Protection Engine affected by this vulnerability Version 1.1.14306.0
##First version of the Microsoft Malware Protection Engine with this vulnerability addressed 1.1.14405.2
if(version_is_less(version:mpe_version, test_version:"1.1.14405.2"))
{
  report = report_fixed_ver(installed_version: mpe_version, fixed_version: "1.1.14405.2");
  security_message(data:report);
  exit(0);
}
exit(0);