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openvasThis script is Copyright (C) 2016 Greenbone Networks GmbHOPENVAS:1361412562310107048
HistorySep 26, 2016 - 12:00 a.m.

OpenSSL 1.0.2 and 1.0.1 Multiple Vulnerabilities Sep 16 (Linux)

2016-09-2600:00:00
This script is Copyright (C) 2016 Greenbone Networks GmbH
plugins.openvas.org
13

0.449 Medium

EPSS

Percentile

97.0%

This host is running OpenSSL and is prone to multiple vulnerabilities.

##############################################################################
# OpenVAS Vulnerability Test
# $Id: gb_openssl_mul_vul_dos_sep_16_lin.nasl 13898 2019-02-27 08:37:43Z cfischer $
#
# OpenSSL 1.0.2 and 1.0.1 Multiple Vulnerabilities Sep 16 (Linux)
#
# Authors:
# Tameem Eissa <tameem.eissa@greenbone.net>
#
# Copyright:
# Copyright (c) 2016 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:openssl:openssl";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.107048");
  script_version("$Revision: 13898 $");
  script_cve_id("CVE-2016-6306", "CVE-2016-6303", "CVE-2016-2181", "CVE-2016-6302", "CVE-2016-2182",
                "CVE-2016-2180", "CVE-2016-2179");
  script_tag(name:"last_modification", value:"$Date: 2019-02-27 09:37:43 +0100 (Wed, 27 Feb 2019) $");
  script_tag(name:"qod_type", value:"remote_banner_unreliable");
  script_tag(name:"creation_date", value:"2016-09-26 06:40:16 +0200 (Mon, 26 Sep 2016)");
  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("OpenSSL 1.0.2 and 1.0.1 Multiple Vulnerabilities Sep 16 (Linux)");

  script_xref(name:"URL", value:"https://www.openssl.org/news/secadv/20160922.txt");
  script_category(ACT_GATHER_INFO);
  script_copyright("This script is Copyright (C) 2016 Greenbone Networks GmbH");
  script_family("Denial of Service");
  script_dependencies("gb_openssl_detect.nasl", "gb_openssl_detect_lin.nasl", "os_detection.nasl");
  script_mandatory_keys("openssl/detected", "Host/runs_unixoide");

  script_tag(name:"summary", value:"This host is running OpenSSL and is prone to multiple vulnerabilities.");

  script_tag(name:"insight", value:"OpenSSL suffers from the possibility of multiple vulnerabilities due to:

  1) Missing message length checks which results in Out of Bounds reads up to 2 bytes beyond the allocated buffer, this leads to Denial of Service. The attack works only if client authentication is enabled.

  2) Calling MDC2_Update() can cause an overflow if an attacker is able to supply very large amounts of input data after a previous
  call to EVP_EncryptUpdate() with a partial block then a length check can overflow resulting in a heap corruption.

  3) A malfored SHA512 TLS session ticket resulting in an Out of Bounds read which leads to service crash.

  4) Unchecking the return value of BN_div_word() function causing an Out of Bounds write if it is used with an overly large BIGNUM. TLS is not affected.

  5) Misusing OBJ_obj2txt() function by the function TS_OBJ_print_bio() will results in Out of Bounds reads when large OIDs are presented.

  6) DTLS out-of-order messages handling which enable an attacker to cause a DoS attack through memory exhaustion.

  7) A flaw in the DTLS replay attack protection mechanism enabling the attacker to send records for next epochs with a very large sequence number,
  this causes in dropping all the subsequent legitimate packets and causing a denial of service for a specific DTLS connection.");

  script_tag(name:"impact", value:"Successful exploitation could result in Denial of Service.");

  script_tag(name:"affected", value:"OpenSSL 1.0.2 and 1.0.1.");

  script_tag(name:"solution", value:"OpenSSL 1.0.2 users should upgrade to 1.0.2i, OpenSSL 1.0.1 users should upgrade to 1.0.1u");

  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(vers =~ "^(1\.0\.2)" && version_is_less(version:vers, test_version:"1.0.2i"))
{
  fix = "1.0.2i";
  VUL = TRUE;
}
else if (vers =~ "^(1\.0\.1)" && version_is_less( version:vers, test_version:"1.0.1u"))
{
  fix = "1.0.1u";
  VUL = TRUE;
}

if (VUL)
{
  report = report_fixed_ver(installed_version:vers, fixed_version:fix, install_path:path);
  security_message(port:port, data:report);
  exit(0);
}

exit(99);

0.449 Medium

EPSS

Percentile

97.0%

Related for OPENVAS:1361412562310107048