ASP.NET Core 3.0.x < 3.0.2, 3.1.0 Multiple Vulnerabilities (Jan 2020)

# Copyright (C) 2020 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:asp.net_core";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.816556");
  script_version("2023-03-07T10:19:54+0000");
  script_cve_id("CVE-2020-0602", "CVE-2020-0603", "CVE-2020-0605", "CVE-2020-0606");
  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:"2023-03-07 10:19:54 +0000 (Tue, 07 Mar 2023)");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/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:"2020-01-17 19:22:00 +0000 (Fri, 17 Jan 2020)");
  script_tag(name:"creation_date", value:"2020-01-16 11:32:54 +0530 (Thu, 16 Jan 2020)");
  script_name("ASP.NET Core 3.0.x < 3.0.2, 3.1.0 Multiple Vulnerabilities (Jan 2020)");

  script_tag(name:"summary", value:"ASP.NET Core is prone to multiple 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 ASP.NET Core improperly handles web requests.

  - An error in ASP.NET Core because it fails to handle objects in memory.

  - Multiple errors in .NET because it fails to check the source markup of a file.");

  script_tag(name:"impact", value:"Successful exploitation will allow an attacker
  to run arbitrary code in the context of the current user and conduct DoS attacks.");

  script_tag(name:"affected", value:"ASP.NET Core version 3.0.0, 3.0.1 and 3.1.0");

  script_tag(name:"solution", value:"Update to ASP.NET Core to 3.0.2 or 3.1.1 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/3.0/3.0.2/3.0.2.md");
  script_xref(name:"URL", value:"https://github.com/dotnet/core/blob/master/release-notes/3.1/3.1.1/3.1.1.md");
  script_xref(name:"URL", value:"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0606");
  script_xref(name:"URL", value:"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0605");
  script_xref(name:"URL", value:"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0603");
  script_xref(name:"URL", value:"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0602");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2020 Greenbone Networks GmbH");
  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);

vers = infos["version"];
path = infos["location"];

if(vers =~ "^3\.0" && version_is_less(version:vers, test_version:"3.0.2"))
  fix = "3.0.2";

else if(vers =~ "^3\.1" && version_is_less(version:vers, test_version:"3.1.1"))
  fix = "3.1.1";

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

exit(99);