6.4 Medium
AI Score
Confidence
Low
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
0.578 Medium
EPSS
Percentile
97.7%
OpenSSL is prone to a denial of service (DoS) vulnerability.
# Copyright (C) 2015 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("1.3.6.1.4.1.25623.1.0.806747");
script_version("2022-04-14T06:42:08+0000");
script_tag(name:"cvss_base", value:"4.3");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:N/I:N/A:P");
script_tag(name:"last_modification", value:"2022-04-14 06:42:08 +0000 (Thu, 14 Apr 2022)");
script_tag(name:"creation_date", value:"2015-12-01 09:41:47 +0530 (Tue, 01 Dec 2015)");
script_cve_id("CVE-2015-1788");
script_tag(name:"qod_type", value:"remote_banner_unreliable");
script_tag(name:"solution_type", value:"VendorFix");
script_name("OpenSSL Denial of Service Vulnerability (20150611 - 1) - Linux");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2015 Greenbone Networks GmbH");
script_family("Denial of Service");
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 denial of service (DoS) vulnerability.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");
script_tag(name:"insight", value:"When processing an ECParameters structure OpenSSL enters an
infinite loop if the curve specified is over a specially malformed binary polynomial field. This
can be used to perform denial of service against any system which processes public keys,
certificate requests or certificates. This includes TLS clients and TLS servers with client
authentication enabled.");
script_tag(name:"affected", value:"OpenSSL version 0.9.8 through 0.9.8r, 1.0.0 through 1.0.0d,
1.0.1 through 1.0.1m and 1.0.2 through 1.0.2a.");
script_tag(name:"solution", value:"Update to version 0.9.8s, 1.0.0e, 1.0.1n, 1.0.2b or later.");
script_xref(name:"URL", value:"https://www.openssl.org/news/secadv/20150611.txt");
script_xref(name:"URL", value:"http://www.securityfocus.com/bid/75158");
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_in_range(version:vers, test_version:"0.9.8", test_version2:"0.9.8r")) {
report = report_fixed_ver(installed_version:vers, fixed_version:"0.9.8s", install_path:path);
security_message(port:port, data:report);
exit(0);
}
if(version_in_range(version:vers, test_version:"1.0.0", test_version2:"1.0.0d")) {
report = report_fixed_ver(installed_version:vers, fixed_version:"1.0.0e", install_path:path);
security_message(port:port, data:report);
exit(0);
}
if(version_in_range(version:vers, test_version:"1.0.1", test_version2:"1.0.1m")) {
report = report_fixed_ver(installed_version:vers, fixed_version:"1.0.1n", install_path:path);
security_message(port:port, data:report);
exit(0);
}
if(version_in_range(version:vers, test_version:"1.0.2", test_version2:"1.0.2a")) {
report = report_fixed_ver(installed_version:vers, fixed_version:"1.0.2b", install_path:path);
security_message(port:port, data:report);
exit(0);
}
exit(99);