OpenSSL SSLv2 DROWN Attack 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:openssl:openssl";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.807095");
  script_version("2024-02-15T05:05:40+0000");
  script_cve_id("CVE-2016-0800");
  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:"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:H/PR:N/UI:N/S:U/C:H/I:N/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2018-11-30 21:31:00 +0000 (Fri, 30 Nov 2018)");
  script_tag(name:"creation_date", value:"2016-03-03 12:23:09 +0530 (Thu, 03 Mar 2016)");
  script_tag(name:"qod_type", value:"remote_banner");
  script_name("OpenSSL SSLv2 DROWN Attack Vulnerability - Windows");

  script_tag(name:"summary", value:"OpenSSL is prone to the DROWN attack vulnerability.");

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

  script_tag(name:"insight", value:"The flaw is due a padding oracle flaw found
  in the SSLv2 protocol, so that by exploiting the server's support of SSLv2,
  an attacker can decrypt properly secured TLS traffic.");

  script_tag(name:"impact", value:"Successful exploitation will allow a remote
  attacker to decrypt traffic between clients and non-vulnerable servers and to
  gain usernames, passwords, credit card numbers, emails, instant messages, and
  sensitive documents and also to impersonate a secure website and intercept or
  change the content the user sees.");

  script_tag(name:"affected", value:"OpenSSL versions before 1.0.1s and 1.0.2
  before 1.0.2g.");

  script_tag(name:"solution", value:"Upgrade to OpenSSL 1.0.1s or 1.0.2g or
  later.");

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

  script_xref(name:"URL", value:"https://www.openssl.org/news/secadv/20160301.txt");
  script_xref(name:"URL", value:"https://drownattack.com/drown-attack-paper.pdf");
  script_xref(name:"URL", value:"https://answers.uchicago.edu/page.php?id=61323");
  script_xref(name:"URL", value:"http://arstechnica.com/security/2016/03/more-than-13-million-https-websites-imperiled-by-new-decryption-attack");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2016 Greenbone AG");
  script_family("General");
  script_dependencies("gb_openssl_consolidation.nasl", "os_detection.nasl");
  script_mandatory_keys("openssl/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))
  exit(0);

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

if(version_is_less(version:vers, test_version:"1.0.1s")) {
  fix = "1.0.1s";
  VULN = TRUE;
}

else if(vers =~ "^1\.0\.2") {
  if(version_is_less(version:vers, test_version:"1.0.2g")) {
    fix = "1.0.2g";
    VULN = TRUE;
  }
}

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

exit(99);