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OpenSSH Ciphersuite Specification Information Disclosure Weakness

2011-09-09T00:00:00
ID OPENVAS:1361412562310103247
Type openvas
Reporter This script is Copyright (C) 2011 Greenbone Networks GmbH
Modified 2019-05-22T00:00:00

Description

OpenSSH is prone to a security weakness that may allow attackers to downgrade the ciphersuite.

                                        
                                            ###############################################################################
# OpenVAS Vulnerability Test
#
# OpenSSH Ciphersuite Specification Information Disclosure Weakness
#
# Authors:
# Michael Meyer <michael.meyer@greenbone.net>
#
# Copyright:
# Copyright (c) 2011 Greenbone Networks GmbH
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2
# (or any later version), as published by the Free Software Foundation.
#
# 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:openbsd:openssh";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.103247");
  script_version("2019-05-22T07:58:25+0000");
  script_bugtraq_id(49473);
  script_cve_id("CVE-2001-0572");
  script_tag(name:"last_modification", value:"2019-05-22 07:58:25 +0000 (Wed, 22 May 2019)");
  script_tag(name:"creation_date", value:"2011-09-09 13:52:42 +0200 (Fri, 09 Sep 2011)");
  script_tag(name:"cvss_base", value:"7.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_name("OpenSSH Ciphersuite Specification Information Disclosure Weakness");
  script_category(ACT_GATHER_INFO);
  script_family("General");
  script_copyright("This script is Copyright (C) 2011 Greenbone Networks GmbH");
  script_dependencies("gb_openssh_consolidation.nasl");
  script_mandatory_keys("openssh/detected");

  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/49473");
  script_xref(name:"URL", value:"http://www.kb.cert.org/vuls/id/596827");

  script_tag(name:"impact", value:"Successfully exploiting this issue in conjunction with other latent
  vulnerabilities may allow attackers to gain access to sensitive information that
  may aid in further attacks.");

  script_tag(name:"affected", value:"Releases prior to OpenSSH 2.9p2 are vulnerable.");

  script_tag(name:"solution", value:"Updates are available. Please see the references for more information.");

  script_tag(name:"summary", value:"OpenSSH is prone to a security weakness that may allow attackers to
  downgrade the ciphersuite.");

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

  exit(0);
}

include("version_func.inc");
include("host_details.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:"2.9p2" ) ) {
  report = report_fixed_ver( installed_version:vers, fixed_version:"2.9p2", install_path:path );
  security_message( port:port, data:report );
  exit( 0 );
}

exit( 99 );
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