.NET Core SDK Multiple DoS Vulnerabilities-01 (May 2019)

# Copyright (C) 2019 Greenbone Networks GmbH
# 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
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

CPE = "cpe:/a:microsoft:.netcore_sdk";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.815128");
  script_version("2023-10-27T16:11:32+0000");
  script_cve_id("CVE-2019-0820", "CVE-2019-0980", "CVE-2019-0981");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:P");
  script_tag(name:"last_modification", value:"2023-10-27 16:11:32 +0000 (Fri, 27 Oct 2023)");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2019-05-22 13:29:00 +0000 (Wed, 22 May 2019)");
  script_tag(name:"creation_date", value:"2019-05-16 11:38:35 +0530 (Thu, 16 May 2019)");
  script_name(".NET Core SDK Multiple DoS Vulnerabilities-01 (May 2019)");

  script_tag(name:"summary", value:"ASP.NET Core SDK is prone to multiple DoS vulnerabilities.");

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

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

  - An error when .NET Core improperly process RegEx strings.

  - Multiple errors when .NET Core improperly handle web requests.");

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

  script_tag(name:"affected", value:"ASP.NET Core SDK 1.x prior to version 1.1.13");

  script_tag(name:"solution", value:"Upgrade to ASP.NET Core 1.1.13 (.NET Core SDK
  1.1.13 includes .NET Core 1.0.16 Runtime) or 1.1.14 (.NET Core SDK 1.1.14 includes
  .NET Core 1.1.13 Runtime) or later. Please see the references for more information.");

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

  script_xref(name:"URL", value:"https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2019-0820");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/108207");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/108232");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/108245");
  script_xref(name:"URL", value:"https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2019-0980");
  script_xref(name:"URL", value:"https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2019-0981");
  script_xref(name:"URL", value:"https://github.com/dotnet/core/blob/master/release-notes/1.0/1.0.16/1.0.16.md");
  script_xref(name:"URL", value:"https://github.com/dotnet/core/blob/master/release-notes/1.1/1.1.13/1.1.13.md");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2019 Greenbone Networks GmbH");
  script_family("Windows");
  script_dependencies("gb_asp_dotnet_core_detect_win.nasl");
  script_mandatory_keys(".NET/Core/SDK/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\." && version_is_less(version:coreVers, test_version:"1.1.13"))
{
  report = report_fixed_ver(installed_version:coreVers, fixed_version:"1.1.13 or 1.1.14", install_path:path);
  security_message(data:report);
  exit(0);
}
exit(99);