Microsoft Visual Studio NuGet Package Manager Tampering Vulnerability-MACOSX

# Copyright (C) 2019 Greenbone Networks GmbH
# Text descriptions are largely excerpted from the referenced
# advisory, and are Copyright (C) the respective author(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:visual_studio";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.815000");
  script_version("2019-05-17T10:45:27+0000");
  script_cve_id("CVE-2019-0757");
  script_tag(name:"cvss_base", value:"4.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:S/C:N/I:P/A:N");
  script_tag(name:"last_modification", value:"2019-05-17 10:45:27 +0000 (Fri, 17 May 2019)");
  script_tag(name:"creation_date", value:"2019-03-14 12:34:57 +0530 (Thu, 14 Mar 2019)");
  script_name("Microsoft Visual Studio NuGet Package Manager Tampering Vulnerability-MACOSX");

  script_tag(name:"summary", value:"The host is installed with Visual Studio
  and is prone to tampering 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 improper
  permissions on folders inside the NuGet packages folder structure.");

  script_tag(name:"impact", value:"Successful exploitation will allow an
  authenticated attacker to modify a NuGet package's folder structure. An attacker
  who successfully exploited this vulnerability could potentially modify files
  and folders that are unpackaged on a system.");

  script_tag(name:"affected", value:"Visual Studio 2017 prior to version 7.8.3.2 on MACOSX");

  script_tag(name:"solution", value:"Update Visual Studio to version Visual Studio 2017
  7.8.0.1624 or later. 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://docs.microsoft.com/en-us/visualstudio/releasenotes/vs2017-mac-relnotes");
  script_xref(name:"URL", value:"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0757");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2019 Greenbone Networks GmbH");
  script_family("Windows : Microsoft Bulletins");
  script_dependencies("gb_visual_studio_detect_macosx.nasl");
  script_mandatory_keys("VisualStudio/MacOSX/Version");
  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(version_in_range(version:vers, test_version:"7.0", test_version2:"7.8.2.1"))
{
  report = report_fixed_ver(installed_version: vers, fixed_version: "Visual Studio 2017 7.8.3.2", install_path: path);
  security_message(data: report);
  exit(0);
}
exit(99);