Apple Xcode Arbitrary Code Execution Vulnerability (HT210796)

# 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:apple:xcode";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.815870");
  script_version("2021-10-07T07:48:17+0000");
  script_cve_id("CVE-2019-8840");
  script_tag(name:"cvss_base", value:"6.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:S/C:P/I:P/A:P");
  script_tag(name:"last_modification", value:"2021-10-07 07:48:17 +0000 (Thu, 07 Oct 2021)");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2020-11-02 17:18:00 +0000 (Mon, 02 Nov 2020)");
  script_tag(name:"creation_date", value:"2019-12-12 11:00:05 +0530 (Thu, 12 Dec 2019)");
  script_tag(name:"qod_type", value:"executable_version");
  script_name("Apple Xcode Arbitrary Code Execution Vulnerability (HT210796)");

  script_tag(name:"summary", value:"Apple Xcode is prone to an arbitrary code execution vulnerability.");

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

  script_tag(name:"insight", value:"The flaw is due to an out-of-bounds read error
  related to an improper bounds checking.");

  script_tag(name:"impact", value:"Successful exploitation will allow
  attackers to conduct arbitrary code execution with user privileges.");

  script_tag(name:"affected", value:"Apple Xcode prior to version 11.3");

  script_tag(name:"solution", value:"Upgrade to Apple Xcode 11.3 or later.
  Please see the references for more information.");

  script_tag(name:"solution_type", value:"VendorFix");
  script_xref(name:"URL", value:"https://support.apple.com/en-us/HT210796");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2019 Greenbone Networks GmbH");
  script_family("General");
  script_dependencies("gather-package-list.nasl", "gb_xcode_detect_macosx.nasl");
  script_mandatory_keys("ssh/login/osx_version", "Xcode/MacOSX/Version");
  exit(0);
}


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

osVer = get_kb_item("ssh/login/osx_version");
if(!osVer || version_is_less(version:osVer, test_version:"10.14.4")){
  exit(0);
}

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

if(version_is_less(version:xcVer, test_version:"11.3"))
{
  report = report_fixed_ver(installed_version:xcVer, fixed_version:"11.3", install_path:xcpath);
  security_message(data:report);
  exit(0);
}
exit(0);