.NET Core Spoofing Vulnerability (Feb 2019)

# SPDX-FileCopyrightText: 2019 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

CPE = "cpe:/a:microsoft:asp.net_core" ;

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.814759");
  script_version("2024-02-21T05:06:27+0000");
  script_cve_id("CVE-2019-0657");
  script_tag(name:"cvss_base", value:"4.3");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:N/I:P/A:N");
  script_tag(name:"last_modification", value:"2024-02-21 05:06:27 +0000 (Wed, 21 Feb 2024)");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:H/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:"2019-03-07 16:55:00 +0000 (Thu, 07 Mar 2019)");
  script_tag(name:"creation_date", value:"2019-02-14 12:17:57 +0530 (Thu, 14 Feb 2019)");
  script_name(".NET Core Spoofing Vulnerability (Feb 2019)");

  script_tag(name:"summary", value:"ASP.NET Core is prone to a spoofing 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 due to an error in .Net
  Framework API's in the way they parse URL's.");

  script_tag(name:"impact", value:"Successful exploitation will allow an attacker
  to conduct spoofing attacks.");

  script_tag(name:"affected", value:"ASP.NET Core 1.0.x prior to version 1.0.14,
  1.1.x prior to version 1.1.11, 2.1.x prior to version 2.1.8 and 2.2.x prior
  to version 2.2.2");

  script_tag(name:"solution", value:"Upgrade to ASP.NET Core 1.0.14 or 1.1.11 or
  2.1.8 or 2.2.2 or later.");

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

  script_xref(name:"URL", value:"https://github.com/dotnet/core/blob/master/release-notes/2.2/2.2.2/2.2.2.md");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/106890");
  script_xref(name:"URL", value:"https://github.com/dotnet/core/blob/master/release-notes/2.1/2.1.8/2.1.8.md");
  script_xref(name:"URL", value:"https://github.com/dotnet/core/blob/master/release-notes/1.1/1.1.11/1.1.11.md");
  script_xref(name:"URL", value:"https://github.com/dotnet/core/blob/master/release-notes/1.0/1.0.14/1.0.14.md");
  script_xref(name:"URL", value:"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0657");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2019 Greenbone AG");
  script_family("Windows");
  script_dependencies("gb_asp_dotnet_core_detect_win.nasl");
  script_mandatory_keys("ASP.NET/Core/Ver");
  exit(0);
}


include("host_details.inc");
include("version_func.inc");

if(!infos = get_app_version_and_location(cpe:CPE, exit_no_version:TRUE)) exit(0);
coreVers = infos['version'];
path = infos['location'];

if(coreVers =~ "^1\.0" && version_is_less(version:coreVers, test_version:"1.0.14")){
  fix = "1.0.14";
}

else if (coreVers =~ "^1\.1" && version_is_less(version:coreVers, test_version:"1.1.11")){
  fix = "1.1.11";
}

else if (coreVers =~ "^2\.1" && version_is_less(version:coreVers, test_version:"2.1.8")){
  fix = "2.1.8";
}

else if (coreVers =~ "^2\.2" && version_is_less(version:coreVers, test_version:"2.2.2")){
  fix = "2.2.2" ;
}

if(fix)
{
  report = report_fixed_ver(installed_version:coreVers, fixed_version:fix, install_path:path);
  security_message(data:report);
  exit(0);
}
exit(99);