Lucene search

K
openvasCopyright (C) 2021 Greenbone Networks GmbHOPENVAS:1361412562310112967
HistoryAug 17, 2021 - 12:00 a.m.

OpenSSL: SSL, TLS and DTLS Plaintext Recovery Attack (20130205) - Windows

2021-08-1700:00:00
Copyright (C) 2021 Greenbone Networks GmbH
plugins.openvas.org
13
openssl
plaintext recovery
ssl
tls
dtls
cbc ciphersuites
timing differences
mac processing
vulnerability
update

CVSS2

2.6

Attack Vector

NETWORK

Attack Complexity

HIGH

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:H/Au:N/C:P/I:N/A:N

AI Score

6.6

Confidence

High

EPSS

0.005

Percentile

77.3%

OpenSSL is prone to a plaintext-recovery attack.

# Copyright (C) 2021 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("1.3.6.1.4.1.25623.1.0.112967");
  script_version("2021-08-30T10:29:27+0000");
  script_tag(name:"last_modification", value:"2021-08-30 10:29:27 +0000 (Mon, 30 Aug 2021)");
  script_tag(name:"creation_date", value:"2021-08-17 06:07:11 +0000 (Tue, 17 Aug 2021)");
  script_tag(name:"cvss_base", value:"2.6");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:H/Au:N/C:P/I:N/A:N");

  script_cve_id("CVE-2013-0169");

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

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

  script_name("OpenSSL: SSL, TLS and DTLS Plaintext Recovery Attack (20130205) - Windows");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2021 Greenbone Networks GmbH");
  script_family("General");
  script_dependencies("gb_openssl_consolidation.nasl", "os_detection.nasl");
  script_mandatory_keys("openssl/detected", "Host/runs_windows");

  script_tag(name:"summary", value:"OpenSSL is prone to a plaintext-recovery attack.");

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

  script_tag(name:"insight", value:"A weakness exists in the handling of CBC ciphersuites in SSL,
  TLS and DTLS. Their attack exploits timing differences arising during MAC processing.");

  script_tag(name:"affected", value:"OpenSSL 0.9.8 through 0.9.8x, 1.0.0 through 1.0.0j and 1.0.1
  through 1.0.1d.");

  script_tag(name:"solution", value:"Update to version 0.9.8y, 1.0.0k, 1.0.1e or later.");

  script_xref(name:"URL", value:"https://www.openssl.org/news/secadv/20130205.txt");

  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_in_range(version: version, test_version: "0.9.8", test_version2: "0.9.8x")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "0.9.8y", install_path: location);
  security_message(port: port, data: report);
  exit(0);
}

if (version_in_range(version: version, test_version: "1.0.0", test_version2: "1.0.0j")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "1.0.0k", install_path: location);
  security_message(port: port, data: report);
  exit(0);
}

if (version_in_range(version: version, test_version: "1.0.1", test_version2: "1.0.1d")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "1.0.1e", install_path: location);
  security_message(port: port, data: report);
  exit(0);
}

exit(99);

CVSS2

2.6

Attack Vector

NETWORK

Attack Complexity

HIGH

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:H/Au:N/C:P/I:N/A:N

AI Score

6.6

Confidence

High

EPSS

0.005

Percentile

77.3%