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openvasCopyright (C) 2018 Greenbone Networks GmbHOPENVAS:1361412562310112408
HistoryNov 01, 2018 - 12:00 a.m.

OpenSSL: Timing vulnerability in ECDSA signature generation (CVE-2018-0735) (Linux)

2018-11-0100:00:00
Copyright (C) 2018 Greenbone Networks GmbH
plugins.openvas.org
44

0.005 Low

EPSS

Percentile

73.0%

This host is running OpenSSL and is prone
to an information disclosure vulnerability.

###############################################################################
# OpenVAS Vulnerability Test
# $Id: gb_openssl_secadv_20181029_lin.nasl 13898 2019-02-27 08:37:43Z cfischer $
#
# OpenSSL: Timing vulnerability in ECDSA signature generation (CVE-2018-0735) (Linux)
#
# Authors:
# Adrian Steins <[email protected]>
#
# Copyright:
# Copyright (C) 2018 Greenbone Networks GmbH, http://www.greenbone.net
#
# 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.
###############################################################################

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.112408");
  script_version("$Revision: 13898 $");
  script_cve_id("CVE-2018-0735");
  script_bugtraq_id(105750);
  script_tag(name:"cvss_base", value:"4.3");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:P/I:N/A:N");
  script_tag(name:"last_modification", value:"$Date: 2019-02-27 09:37:43 +0100 (Wed, 27 Feb 2019) $");
  script_tag(name:"creation_date", value:"2018-11-01 10:02:33 +0100 (Thu, 01 Nov 2018)");
  script_tag(name:"qod_type", value:"remote_banner_unreliable");
  script_name("OpenSSL: Timing vulnerability in ECDSA signature generation (CVE-2018-0735) (Linux)");

  script_tag(name:"summary", value:"This host is running OpenSSL and is prone
  to an information disclosure vulnerability.");

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

  script_tag(name:"insight", value:"The OpenSSL ECDSA signature algorithm has been shown to be vulnerable to a
  timing side channel attack. An attacker could use variations in the signing
  algorithm to recover the private key.");

  script_tag(name:"impact", value:"A remote user that can conduct a man-in-the-middle attack can exploit a
  timing vulnerability in its ECDSA signature algorithm to cause the target system to disclose private keys.");

  script_tag(name:"affected", value:"OpenSSL versions 1.1.0-1.1.0i and 1.1.1.");

  script_tag(name:"solution", value:"Upgrade OpenSSL to version 1.1.0j-dev, 1.1.1a-dev or manually apply the fixes via Github.
  See the references for more details.");

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

  script_xref(name:"URL", value:"https://www.openssl.org/news/secadv/20181029.txt");
  script_xref(name:"URL", value:"https://www.securitytracker.com/id/1041986");
  script_xref(name:"URL", value:"https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=56fb454d281a023b3f950d969693553d3f3ceea1");
  script_xref(name:"URL", value:"https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=b1d6d55ece1c26fa2829e2b819b038d7b6d692b4");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2018 Greenbone Networks GmbH");
  script_family("General");
  script_dependencies("gb_openssl_detect.nasl", "gb_openssl_detect_lin.nasl", "os_detection.nasl");
  script_mandatory_keys("openssl/detected", "Host/runs_unixoide");

  exit(0);
}

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

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:"1.1.0", test_version2:"1.1.0i")) {
  report = report_fixed_ver(installed_version:vers, fixed_version:"1.1.0j-dev", install_path:path);
  security_message(data:report, port:port);
  exit(0);
}

if(version_is_equal(version:vers, test_version:"1.1.1")) {
  report = report_fixed_ver(installed_version:vers, fixed_version:"1.1.1a-dev", install_path:path);
  security_message(data:report, port:port);
  exit(0);
}

exit(99);

0.005 Low

EPSS

Percentile

73.0%

Related for OPENVAS:1361412562310112408