PHPMailer < 2.0.7 / 2.1, 2.2 < 2.2.1 Email Header Injection Vulnerability

# Copyright (C) 2018 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:phpmailer_project:phpmailer";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.108469");
  script_version("2021-09-29T11:39:12+0000");
  script_cve_id("CVE-2012-0796");
  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:"2021-09-29 11:39:12 +0000 (Wed, 29 Sep 2021)");
  script_tag(name:"creation_date", value:"2018-09-25 09:59:32 +0200 (Tue, 25 Sep 2018)");
  script_name("PHPMailer < 2.0.7 / 2.1, 2.2 < 2.2.1 Email Header Injection Vulnerability");
  script_copyright("Copyright (C) 2018 Greenbone Networks GmbH");
  script_category(ACT_GATHER_INFO);
  script_family("Web application abuses");
  script_dependencies("gb_phpmailer_detect.nasl");
  script_mandatory_keys("phpmailer/detected");

  script_xref(name:"URL", value:"https://github.com/PHPMailer/PHPMailer/blob/master/SECURITY.md");

  script_tag(name:"summary", value:"PHPMailer is prone to an email header injection 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 because the class.phpmailer.php of PHPMailer allows to
  inject arbitrary e-mail headers via vectors involving a crafted (1) From: or (2) Sender: header.");

  script_tag(name:"impact", value:"Attackers can exploit this issue to inject arbitrary e-mail headers.");

  script_tag(name:"affected", value:"PHPMailer versions prior to 2.0.7 and 2.2.1 are vulnerable.");

  script_tag(name:"solution", value:"Update to version 2.0.7/2.2.1 or later.");

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

  exit(0);
}

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

if( ! port = get_app_port( cpe:CPE ) )
  exit( 0 );

if( ! infos = get_app_version_and_location( cpe:CPE, port:port, exit_no_version:TRUE ) )
  exit( 0 );

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

if( version_is_less( version:version, test_version:"2.0.7" ) ) {
  fix = "2.0.7";
} else if( version_in_range( version:version, test_version:"2.1.0", test_version2:"2.2.0" ) ) {
  fix = "2.2.1";
}

if( fix ) {
  report = report_fixed_ver( installed_version:version, fixed_version:fix, install_url:location );
  security_message( port:port, data:report );
  exit( 0 );
}

exit( 99 );