OpenSSL: Raccoon Attack (CVE-2020-1968) - Windows

# SPDX-FileCopyrightText: 2020 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:openssl:openssl";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.144563");
  script_version("2024-02-19T05:05:57+0000");
  script_tag(name:"last_modification", value:"2024-02-19 05:05:57 +0000 (Mon, 19 Feb 2024)");
  script_tag(name:"creation_date", value:"2020-04-22 06:05:59 +0000 (Wed, 22 Apr 2020)");
  script_tag(name:"cvss_base", value:"4.3");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:P/I:N/A:N");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2021-07-20 23:15:00 +0000 (Tue, 20 Jul 2021)");

  script_cve_id("CVE-2020-1968");

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

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

  script_name("OpenSSL: Raccoon Attack (CVE-2020-1968) - Windows");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2020 Greenbone AG");
  script_family("General");
  script_dependencies("gb_openssl_consolidation.nasl", "os_detection.nasl");
  script_mandatory_keys("openssl/detected", "Host/runs_windows");

  script_tag(name:"summary", value:"OpenSSL is prone to Racoon attacks.");

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

  script_tag(name:"insight", value:"The Raccoon attack exploits a flaw in the TLS specification which can lead to
  an attacker being able to compute the pre-master secret in connections which have used a Diffie-Hellman (DH)
  based ciphersuite. In such a case this would result in the attacker being able to eavesdrop on all encrypted
  communications sent over that TLS connection. The attack can only be exploited if an implementation re-uses a DH
  secret across multiple TLS connections. Note that this issue only impacts DH ciphersuites and not ECDH ciphersuites.");

  script_tag(name:"impact", value:"An attacker may eavesdrop on encrypted communications sent over a TLS connection.");

  script_tag(name:"affected", value:"OpenSSL versions 1.0.2 - 1.0.2v and probably 1.1.0.");

  script_tag(name:"solution", value:"Update to version 1.0.2w, 1.1.1 or later.");

  script_xref(name:"URL", value:"https://www.openssl.org/news/secadv/20200909.txt");

  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))
  exit(0);

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

if (version_in_range(version: version, test_version: "1.0.2", test_version2: "1.0.2v")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "1.0.2w", install_path: location);
  security_message(port: port, data: report);
  exit(0);
}

if (version =~ "^1\.1\.0") {
  report = report_fixed_ver(installed_version: version, fixed_version: "1.1.1", install_path: location);
  security_message(port: port, data: report);
  exit(0);
}

exit(99);