Twisted Web < 19.2.1 Character Injection Vulnerability

# Copyright (C) 2022 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:twistedmatrix:twisted";

if (description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.147820");
  script_version("2023-03-02T10:19:53+0000");
  script_tag(name:"last_modification", value:"2023-03-02 10:19:53 +0000 (Thu, 02 Mar 2023)");
  script_tag(name:"creation_date", value:"2022-03-22 01:46:28 +0000 (Tue, 22 Mar 2022)");
  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:"2023-02-28 20:47:00 +0000 (Tue, 28 Feb 2023)");

  script_cve_id("CVE-2019-12387");

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

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

  script_name("Twisted Web < 19.2.1 Character Injection Vulnerability");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2022 Greenbone Networks GmbH");
  script_family("Web Servers");
  script_dependencies("gb_twistedweb_http_detect.nasl");
  script_mandatory_keys("twistedweb/detected");

  script_tag(name:"summary", value:"Twisted Web is prone to a character injection vulnerability.");

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

  script_tag(name:"insight", value:"twisted.web does not validate or sanitize URIs or HTTP methods,
  allowing an attacker to inject invalid characters such as CRLF.");

  script_tag(name:"affected", value:"Twisted Web prior to version 19.2.1.");

  script_tag(name:"solution", value:"Update to version 19.2.1 or later.");

  script_xref(name:"URL", value:"https://labs.twistedmatrix.com/2019/06/twisted-1921-released.html");

  exit(0);
}

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(version: version, test_version: "19.2.1")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "19.2.1");
  security_message(port: port, data: report);
  exit(0);
}

exit(99);