5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
6.2 Medium
AI Score
Confidence
High
0.002 Low
EPSS
Percentile
61.3%
The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the 10dee731-c069-11ee-9190-84a93843eb75 advisory.
Issue summary: Processing a maliciously formatted PKCS12 file may lead OpenSSL to crash leading to a potential Denial of Service attack Impact summary: Applications loading files in the PKCS12 format from untrusted sources might terminate abruptly. A file in PKCS12 format can contain certificates and keys and may come from an untrusted source. The PKCS12 specification allows certain fields to be NULL, but OpenSSL does not correctly check for this case. This can lead to a NULL pointer dereference that results in OpenSSL crashing. If an application processes PKCS12 files from an untrusted source using the OpenSSL APIs then that application will be vulnerable to this issue. OpenSSL APIs that are vulnerable to this are:
PKCS12_parse(), PKCS12_unpack_p7data(), PKCS12_unpack_p7encdata(), PKCS12_unpack_authsafes() and PKCS12_newpass(). We have also fixed a similar issue in SMIME_write_PKCS7(). However since this function is related to writing data we do not consider it security significant. The FIPS modules in 3.2, 3.1 and 3.0 are not affected by this issue. (CVE-2024-0727)
Issue summary: Checking excessively long invalid RSA public keys may take a long time. Impact summary:
Applications that use the function EVP_PKEY_public_check() to check RSA public keys may experience long delays. Where the key that is being checked has been obtained from an untrusted source this may lead to a Denial of Service. When function EVP_PKEY_public_check() is called on RSA public keys, a computation is done to confirm that the RSA modulus, n, is composite. For valid RSA keys, n is a product of two or more large primes and this computation completes quickly. However, if n is an overly large prime, then this computation would take a long time. An application that calls EVP_PKEY_public_check() and supplies an RSA key obtained from an untrusted source could be vulnerable to a Denial of Service attack. The function EVP_PKEY_public_check() is not called from other OpenSSL functions however it is called from the OpenSSL pkey command line application. For that reason that application is also vulnerable if used with the ‘-pubin’ and ‘-check’ options on untrusted data. The OpenSSL SSL/TLS implementation is not affected by this issue. The OpenSSL 3.0 and 3.1 FIPS providers are affected by this issue. Found by OSS-Fuzz. Fix developed by Tomas Mraz. Fixed in OpenSSL 3.0.13 (Affected since 3.0.0). (CVE-2023-6237)
Note that Nessus has not tested for these issues but has instead relied only on the application’s self-reported version number.
#%NASL_MIN_LEVEL 80900
#
# (C) Tenable, Inc.
#
# @NOAGENT@
#
# The descriptive text and package checks in this plugin were
# extracted from the FreeBSD VuXML database :
#
# Copyright 2003-2021 Jacques Vidrine and contributors
#
# Redistribution and use in source (VuXML) and 'compiled' forms (SGML,
# HTML, PDF, PostScript, RTF and so forth) with or without modification,
# are permitted provided that the following conditions are met:
# 1. Redistributions of source code (VuXML) must retain the above
# copyright notice, this list of conditions and the following
# disclaimer as the first lines of this file unmodified.
# 2. Redistributions in compiled form (transformed to other DTDs,
# published online in any format, converted to PDF, PostScript,
# RTF and other formats) must reproduce the above copyright
# notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
#
# THIS DOCUMENTATION IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
# OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
# OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
# BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
# OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS DOCUMENTATION,
# EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
include('compat.inc');
if (description)
{
script_id(189902);
script_version("1.2");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/04/11");
script_cve_id("CVE-2023-6237", "CVE-2024-0727");
script_xref(name:"IAVA", value:"2024-A-0121-S");
script_name(english:"FreeBSD : OpenSSL -- Multiple vulnerabilities (10dee731-c069-11ee-9190-84a93843eb75)");
script_set_attribute(attribute:"synopsis", value:
"The remote FreeBSD host is missing one or more security-related updates.");
script_set_attribute(attribute:"description", value:
"The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple
vulnerabilities as referenced in the 10dee731-c069-11ee-9190-84a93843eb75 advisory.
- Issue summary: Processing a maliciously formatted PKCS12 file may lead OpenSSL to crash leading to a
potential Denial of Service attack Impact summary: Applications loading files in the PKCS12 format from
untrusted sources might terminate abruptly. A file in PKCS12 format can contain certificates and keys and
may come from an untrusted source. The PKCS12 specification allows certain fields to be NULL, but OpenSSL
does not correctly check for this case. This can lead to a NULL pointer dereference that results in
OpenSSL crashing. If an application processes PKCS12 files from an untrusted source using the OpenSSL APIs
then that application will be vulnerable to this issue. OpenSSL APIs that are vulnerable to this are:
PKCS12_parse(), PKCS12_unpack_p7data(), PKCS12_unpack_p7encdata(), PKCS12_unpack_authsafes() and
PKCS12_newpass(). We have also fixed a similar issue in SMIME_write_PKCS7(). However since this function
is related to writing data we do not consider it security significant. The FIPS modules in 3.2, 3.1 and
3.0 are not affected by this issue. (CVE-2024-0727)
- Issue summary: Checking excessively long invalid RSA public keys may take a long time. Impact summary:
Applications that use the function EVP_PKEY_public_check() to check RSA public keys may experience long
delays. Where the key that is being checked has been obtained from an untrusted source this may lead to a
Denial of Service. When function EVP_PKEY_public_check() is called on RSA public keys, a computation is
done to confirm that the RSA modulus, n, is composite. For valid RSA keys, n is a product of two or more
large primes and this computation completes quickly. However, if n is an overly large prime, then this
computation would take a long time. An application that calls EVP_PKEY_public_check() and supplies an RSA
key obtained from an untrusted source could be vulnerable to a Denial of Service attack. The function
EVP_PKEY_public_check() is not called from other OpenSSL functions however it is called from the OpenSSL
pkey command line application. For that reason that application is also vulnerable if used with the
'-pubin' and '-check' options on untrusted data. The OpenSSL SSL/TLS implementation is not affected by
this issue. The OpenSSL 3.0 and 3.1 FIPS providers are affected by this issue. Found by OSS-Fuzz. Fix
developed by Tomas Mraz. Fixed in OpenSSL 3.0.13 (Affected since 3.0.0). (CVE-2023-6237)
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
script_set_attribute(attribute:"see_also", value:"https://www.openssl.org/news/openssl-3.0-notes.html");
script_set_attribute(attribute:"see_also", value:"https://www.openssl.org/news/openssl-3.1-notes.html");
script_set_attribute(attribute:"see_also", value:"https://www.openssl.org/news/openssl-3.2-notes.html");
script_set_attribute(attribute:"see_also", value:"https://www.openssl.org/news/secadv/20240115.txt");
script_set_attribute(attribute:"see_also", value:"https://www.openssl.org/news/secadv/20240125.txt");
# https://vuxml.freebsd.org/freebsd/10dee731-c069-11ee-9190-84a93843eb75.html
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?527a4757");
script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:N/C:N/I:N/A:C");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2023-6237");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"vuln_publication_date", value:"2023/11/06");
script_set_attribute(attribute:"patch_publication_date", value:"2024/01/31");
script_set_attribute(attribute:"plugin_publication_date", value:"2024/02/01");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:openssl");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:openssl-quictls");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:openssl31");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:openssl31-quictls");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:openssl32");
script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_set_attribute(attribute:"stig_severity", value:"I");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"FreeBSD Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/FreeBSD/release", "Host/FreeBSD/pkg_info");
exit(0);
}
include("freebsd_package.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/FreeBSD/release")) audit(AUDIT_OS_NOT, "FreeBSD");
if (!get_kb_item("Host/FreeBSD/pkg_info")) audit(AUDIT_PACKAGE_LIST_MISSING);
var flag = 0;
var packages = [
'openssl-quictls<3.0.13',
'openssl31-quictls<3.1.5',
'openssl31<3.1.5',
'openssl32<3.2.1',
'openssl<3.0.13,1'
];
foreach var package( packages ) {
if (pkg_test(save_report:TRUE, pkg: package)) flag++;
}
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : pkg_report_get()
);
exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
Vendor | Product | Version | CPE |
---|---|---|---|
freebsd | freebsd | openssl | p-cpe:/a:freebsd:freebsd:openssl |
freebsd | freebsd | openssl-quictls | p-cpe:/a:freebsd:freebsd:openssl-quictls |
freebsd | freebsd | openssl31 | p-cpe:/a:freebsd:freebsd:openssl31 |
freebsd | freebsd | openssl31-quictls | p-cpe:/a:freebsd:freebsd:openssl31-quictls |
freebsd | freebsd | openssl32 | p-cpe:/a:freebsd:freebsd:openssl32 |
freebsd | freebsd | cpe:/o:freebsd:freebsd |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-6237
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-0727
www.nessus.org/u?527a4757
www.openssl.org/news/openssl-3.0-notes.html
www.openssl.org/news/openssl-3.1-notes.html
www.openssl.org/news/openssl-3.2-notes.html
www.openssl.org/news/secadv/20240115.txt
www.openssl.org/news/secadv/20240125.txt
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
6.2 Medium
AI Score
Confidence
High
0.002 Low
EPSS
Percentile
61.3%