Microsoft .NET Framework DoS And Security Feature Bypass Vulnerability (KB4054999)

# SPDX-FileCopyrightText: 2018 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-or-later

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.812725");
  script_version("2023-11-03T16:10:08+0000");
  script_cve_id("CVE-2018-0764", "CVE-2018-0786");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:P/A:N");
  script_tag(name:"last_modification", value:"2023-11-03 16:10:08 +0000 (Fri, 03 Nov 2023)");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N");
  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:"2018-01-10 10:03:51 +0530 (Wed, 10 Jan 2018)");
  script_name("Microsoft .NET Framework DoS And Security Feature Bypass Vulnerability (KB4054999)");

  script_tag(name:"summary", value:"This host is missing an important security
  update according to Microsoft Security Updates KB4054999.");

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

  script_tag(name:"insight", value:"Multiple flaws are due to:

  - .NET Framework (and .NET Core) components do not completely validate
    certificates.

  - .NET, and .NET core, improperly process XML documents.");

  script_tag(name:"impact", value:"Successful exploitation will allow remote
  attackers to cause a denial of service against a .NET application and also
  to bypass certain security restrictions.");

  script_tag(name:"affected", value:"Microsoft .NET Framework 3.5.");

  script_tag(name:"solution", value:"The vendor has released updates. Please see the references for more information.");

  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"executable_version");
  script_xref(name:"URL", value:"https://support.microsoft.com/en-us/help/4054999");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2018 Greenbone AG");
  script_family("Windows : Microsoft Bulletins");
  script_dependencies("smb_reg_service_pack.nasl");
  script_mandatory_keys("SMB/WindowsVersion");
  script_require_ports(139, 445);

  exit(0);
}

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

if(hotfix_check_sp(win8_1:1, win8_1x64:1, win2012R2:1) <= 0){
  exit(0);
}

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

key = "SOFTWARE\Microsoft\.NETFramework\AssemblyFolders\v3.0";
if(!registry_key_exists(key:key)){
  exit(0);
}

path = registry_get_sz(key:key , item:"All Assemblies In");
if(path){
  dllVer = fetch_file_version(sysPath:path, file_name:"system.servicemodel.resources.dll");
}

if(dllVer)
{
  if(version_in_range(version:dllVer, test_version:"3.0", test_version2:"3.0.4506.7902"))
  {
    report = report_fixed_ver(file_checked:path + "system.servicemodel.resources.dll", file_version:dllVer,
                              vulnerable_range:"3.0 - 3.0.4506.7902");
    security_message(data:report);
    exit(0);
  }
}
exit(0);