CPython CRLF Injection Vulnerability - Windows

# SPDX-FileCopyrightText: 2016 Greenbone AG
# 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-only

CPE = "cpe:/a:python:python";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.809218");
  script_version("2024-02-15T05:05:40+0000");
  script_cve_id("CVE-2016-5699");
  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:"last_modification", value:"2024-02-15 05:05:40 +0000 (Thu, 15 Feb 2024)");
  script_tag(name:"severity_vector", value:"CVSS:3.0/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:"2019-02-09 11:29:00 +0000 (Sat, 09 Feb 2019)");
  script_tag(name:"creation_date", value:"2016-09-12 14:53:53 +0530 (Mon, 12 Sep 2016)");
  script_tag(name:"qod_type", value:"remote_banner");
  script_name("CPython CRLF Injection Vulnerability - Windows");

  script_tag(name:"summary", value:"CPython is prone to a CRLF 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 httplib library does not
  properly check 'HTTPConnection.putheader' function arguments.");

  script_tag(name:"impact", value:"Successful exploitation will allow remote attackers to
  inject arbitrary HTTP headers via CRLF sequences in a URL.");

  script_tag(name:"affected", value:"CPython before 2.7.10 and 3.x before 3.4.4.");

  script_tag(name:"solution", value:"Update to CPython version 2.7.10, 3.4.4, or later.");

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

  script_xref(name:"URL", value:"https://hg.python.org/cpython/rev/1c45047c5102");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/91226");

  script_copyright("Copyright (C) 2016 Greenbone AG");
  script_category(ACT_GATHER_INFO);
  script_family("Web application abuses");
  script_dependencies("gb_python_consolidation.nasl", "os_detection.nasl");
  script_mandatory_keys("python/detected", "Host/runs_windows");

  exit(0);
}

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

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

if(!infos = get_app_version_and_location(cpe:CPE, port:port, exit_no_version:TRUE, version_regex:"^[0-9]+\.[0-9]+\.[0-9]+"))
  exit(0);

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

if(version_is_less(version:vers, test_version:"2.7.10")) {
  fix = "2.7.10";
  VULN = TRUE;
}

else if(vers =~ "^3\.[0-4]") {
  if(version_in_range(version:vers, test_version:"3.0", test_version2:"3.4.3")) {
    fix = "3.4.4";
    VULN = TRUE;
  }
}

if(VULN) {
  report = report_fixed_ver(installed_version:vers, fixed_version:fix, install_path:path);
  security_message(data:report, port:port);
  exit(0);
}

exit(99);