Coremail XT <= 5.0 XSS Vulnerability

# 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.

if( description )
{
  script_oid("1.3.6.1.4.1.25623.1.0.112848");
  script_version("2021-12-01T08:56:35+0000");
  script_tag(name:"last_modification", value:"2021-12-01 08:56:35 +0000 (Wed, 01 Dec 2021)");
  script_tag(name:"creation_date", value:"2020-11-30 10:29:11 +0000 (Mon, 30 Nov 2020)");
  script_tag(name:"cvss_base", value:"4.3");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:N/I:P/A:N");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2020-11-30 16:34:00 +0000 (Mon, 30 Nov 2020)");

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

  script_tag(name:"solution_type", value:"WillNotFix");

  script_cve_id("CVE-2020-29133");

  script_name("Coremail XT <= 5.0 XSS Vulnerability");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2020 Greenbone Networks GmbH");
  script_family("Web application abuses");
  script_dependencies("gb_coremailxt_detect.nasl");
  script_mandatory_keys("coremail/detected");

  script_tag(name:"summary", value:"Coremail XT is prone to a cross-site scripting (XSS)
  vulnerability.");

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

  script_tag(name:"insight", value:"jsp/upload.jsp allows XSS via an uploaded personal signature,
  e.g. by injecting a .jpg.html filename in the signImgFile parameter.");

  script_tag(name:"impact", value:"Successful exploitation would allow to permanently modify the
  site's content, including injection of malicious code.");

  script_tag(name:"affected", value:"Coremail XT through version 5.0.");

  script_tag(name:"solution", value:"No known solution was made available for at least one year since
  the disclosure of this vulnerability. Likely none will be provided anymore. General solution options
  are to upgrade to a newer release, disable respective features, remove the product or replace the
  product by another one.");

  exit(0);
}

CPE = "cpe:/a:mailtech:coremail";

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

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

if( ! version = get_app_version( cpe: CPE, port: port ) )
  exit( 0 );

if( version_is_less_equal( version: version, test_version: "5.0" ) ) {
  report = report_fixed_ver( installed_version: version, fixed_version: "None" );
  security_message( data: report, port: port );
  exit( 0 );
}

exit( 0 );