CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
AI Score
Confidence
Low
EPSS
Percentile
65.6%
OpenSSL is prone to a security bypass vulnerability.
# Copyright (C) 2009 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("1.3.6.1.4.1.25623.1.0.900464");
script_version("2021-09-01T12:57:33+0000");
script_tag(name:"last_modification", value:"2021-09-01 12:57:33 +0000 (Wed, 01 Sep 2021)");
script_tag(name:"creation_date", value:"2009-03-02 16:07:07 +0100 (Mon, 02 Mar 2009)");
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_cve_id("CVE-2009-0653");
script_name("OpenSSL CA Certificate Security Bypass Vulnerability");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2009 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:"impact", value:"Successful exploitation will let the attacker spoof the SSL cerficate and
gain sensitive information of the remote user through inserting a malicious
URL in the contenxt of the openssl certificate.");
script_tag(name:"affected", value:"OpenSSL version 0.9.6 or prior.");
script_tag(name:"insight", value:"OpenSSL fails to verify the Basic Constraints for an intermediate CA-signed
certificate.");
script_tag(name:"solution", value:"Upgrade to OpenSSL version 1.0.0 or later.");
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:"qod_type", value:"remote_banner_unreliable");
script_tag(name:"solution_type", value:"VendorFix");
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_equal( version:vers, test_version:"0.9.6" ) ) {
report = report_fixed_ver( installed_version:vers, fixed_version:"1.0.0", install_path:path );
security_message( port:port, data:report );
exit( 0 );
}
exit( 99 );