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openvasCopyright (C) 2022 Greenbone Networks GmbHOPENVAS:1361412562310149016
HistoryDec 14, 2022 - 12:00 a.m.

OpenSSL: X.509 Policy Constraints Double Locking Vulnerability (Dec 2022) - Linux

2022-12-1400:00:00
Copyright (C) 2022 Greenbone Networks GmbH
plugins.openvas.org
6
openssl
x.509
policy constraints
double locking
vulnerability
linux
denial of service
cve-2022-3996
version 3.0.0
version 3.0.7
version 3.0.8
security advisory

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

7.4 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

45.3%

OpenSSL is prone to a denial of service (DoS) vulnerability.

# Copyright (C) 2022 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("1.3.6.1.4.1.25623.1.0.149016");
  script_version("2023-10-19T05:05:21+0000");
  script_tag(name:"last_modification", value:"2023-10-19 05:05:21 +0000 (Thu, 19 Oct 2023)");
  script_tag(name:"creation_date", value:"2022-12-14 03:39:44 +0000 (Wed, 14 Dec 2022)");
  script_tag(name:"cvss_base", value:"7.8");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2022-12-15 17:46:00 +0000 (Thu, 15 Dec 2022)");

  script_cve_id("CVE-2022-3996");

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

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

  script_name("OpenSSL: X.509 Policy Constraints Double Locking Vulnerability (Dec 2022) - Linux");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2022 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:"If an X.509 certificate contains a malformed policy constraint
  and policy processing is enabled, then a write lock will be taken twice recursively. On some
  operating systems (most widely: Windows) this results in a denial of service when the affected
  process hangs. Policy processing being enabled on a publicly facing server is not considered to
  be a common setup.

  Policy processing is enabled by passing the '-policy' argument to the command line utilities or
  by calling either 'X509_VERIFY_PARAM_add0_policy()' or 'X509_VERIFY_PARAM_set1_policies()'
  functions.");

  script_tag(name:"affected", value:"OpenSSL versions 3.0.0 through 3.0.7.");

  script_tag(name:"solution", value:"Update to version 3.0.8 or later.");

  script_xref(name:"URL", value:"https://www.openssl.org/news/secadv/20221213.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_exclusive(version: version, test_version_lo: "3.0.0", test_version_up: "3.0.8")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "3.0.8", install_path: location);
  security_message(port: port, data: report);
  exit(0);
}

exit(99);

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

7.4 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

45.3%