OpenSSL < 0.9.6 Security Bypass 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.

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

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.117033");
  script_version("2022-04-13T07:21:45+0000");
  script_tag(name:"last_modification", value:"2022-04-13 07:21:45 +0000 (Wed, 13 Apr 2022)");
  script_tag(name:"creation_date", value:"2020-11-09 10:42:16 +0000 (Mon, 09 Nov 2020)");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:N/A:N");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/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:"2017-02-02 02:59:00 +0000 (Thu, 02 Feb 2017)");

  script_cve_id("CVE-2000-1254");

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

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

  script_name("OpenSSL < 0.9.6 Security Bypass Vulnerability");

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

  script_tag(name:"summary", value:"OpenSSL is prone to a security bypass vulnerability.");

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

  script_tag(name:"insight", value:"crypto/rsa/rsa_gen.c in OpenSSL mishandles C bitwise-shift operations
  that exceed the size of an expression.");

  script_tag(name:"impact", value:"The flaw makes it easier for remote attackers to defeat cryptographic
  protection mechanisms by leveraging improper RSA key generation.");

  script_tag(name:"affected", value:"OpenSSL versions prior to 0.9.6 on 64-bit HP-UX platforms.");

  script_tag(name:"solution", value:"Update to version 0.9.6 or later.");

  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/90109");
  script_xref(name:"URL", value:"https://marc.info/?l=openssl-users&m=95961024500509");
  script_xref(name:"URL", value:"https://www.openwall.com/lists/oss-security/2016/05/04/17");

  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_is_less(version: version, test_version: "0.9.6")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "0.9.6", install_path: location);
  security_message(port: port, data: report);
  exit(0);
}

exit(99);