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
AI Score
Confidence
High
EPSS
Percentile
71.6%
The version of OpenSSL installed on the remote host is prior to 1.0.2zj. It is, therefore, affected by multiple vulnerabilities as referenced in the 1.0.2zj 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: Generating excessively long X9.42 DH keys or checking excessively long X9.42 DH keys or parameters may be very slow. Impact summary: Applications that use the functions DH_generate_key() to generate an X9.42 DH key may experience long delays. Likewise, applications that use DH_check_pub_key(), DH_check_pub_key_ex() or EVP_PKEY_public_check() to check an X9.42 DH key or X9.42 DH parameters may experience long delays. Where the key or parameters that are being checked have been obtained from an untrusted source this may lead to a Denial of Service. While DH_check() performs all the necessary checks (as of CVE-2023-3817), DH_check_pub_key() doesn’t make any of these checks, and is therefore vulnerable for excessively large P and Q parameters. Likewise, while DH_generate_key() performs a check for an excessively large P, it doesn’t check for an excessively large Q. An application that calls DH_generate_key() or DH_check_pub_key() and supplies a key or parameters obtained from an untrusted source could be vulnerable to a Denial of Service attack. DH_generate_key() and DH_check_pub_key() are also called by a number of other OpenSSL functions. An application calling any of those other functions may similarly be affected. The other functions affected by this are DH_check_pub_key_ex(), EVP_PKEY_public_check(), and EVP_PKEY_generate(). Also vulnerable are the OpenSSL pkey command line application when using the -pubcheck option, as well as the OpenSSL genpkey command line application.
The OpenSSL SSL/TLS implementation is not affected by this issue. The OpenSSL 3.0 and 3.1 FIPS providers are not affected by this issue. (CVE-2023-5678)
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.
##
include('compat.inc');
if (description)
{
script_id(184812);
script_version("1.5");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/07");
script_cve_id("CVE-2023-5678", "CVE-2024-0727");
script_xref(name:"IAVA", value:"2024-A-0121-S");
script_name(english:"OpenSSL 1.0.2 < 1.0.2zj Multiple Vulnerabilities");
script_set_attribute(attribute:"synopsis", value:
"The remote service is affected by multiple vulnerabilities.");
script_set_attribute(attribute:"description", value:
"The version of OpenSSL installed on the remote host is prior to 1.0.2zj. It is, therefore, affected by multiple
vulnerabilities as referenced in the 1.0.2zj 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: Generating excessively long X9.42 DH keys or checking excessively long X9.42 DH keys or
parameters may be very slow. Impact summary: Applications that use the functions DH_generate_key() to
generate an X9.42 DH key may experience long delays. Likewise, applications that use DH_check_pub_key(),
DH_check_pub_key_ex() or EVP_PKEY_public_check() to check an X9.42 DH key or X9.42 DH parameters may
experience long delays. Where the key or parameters that are being checked have been obtained from an
untrusted source this may lead to a Denial of Service. While DH_check() performs all the necessary checks
(as of CVE-2023-3817), DH_check_pub_key() doesn't make any of these checks, and is therefore vulnerable
for excessively large P and Q parameters. Likewise, while DH_generate_key() performs a check for an
excessively large P, it doesn't check for an excessively large Q. An application that calls
DH_generate_key() or DH_check_pub_key() and supplies a key or parameters obtained from an untrusted source
could be vulnerable to a Denial of Service attack. DH_generate_key() and DH_check_pub_key() are also
called by a number of other OpenSSL functions. An application calling any of those other functions may
similarly be affected. The other functions affected by this are DH_check_pub_key_ex(),
EVP_PKEY_public_check(), and EVP_PKEY_generate(). Also vulnerable are the OpenSSL pkey command line
application when using the -pubcheck option, as well as the OpenSSL genpkey command line application.
The OpenSSL SSL/TLS implementation is not affected by this issue. The OpenSSL 3.0 and 3.1 FIPS providers
are not affected by this issue. (CVE-2023-5678)
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.cve.org/CVERecord?id=CVE-2023-5678");
script_set_attribute(attribute:"see_also", value:"https://www.cve.org/CVERecord?id=CVE-2024-0727");
script_set_attribute(attribute:"solution", value:
"Upgrade to OpenSSL version 1.0.2zj or later.");
script_set_attribute(attribute:"agent", value:"all");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:R/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-2023-5678");
script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2024-0727");
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:"2023/11/06");
script_set_attribute(attribute:"plugin_publication_date", value:"2023/11/07");
script_set_attribute(attribute:"plugin_type", value:"combined");
script_set_attribute(attribute:"cpe", value:"cpe:/a:openssl:openssl");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_set_attribute(attribute:"stig_severity", value:"I");
script_set_attribute(attribute:"thorough_tests", value:"true");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Web Servers");
script_copyright(english:"This script is Copyright (C) 2023-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("openssl_version.nasl", "openssl_nix_installed.nbin", "openssl_win_installed.nbin");
script_require_keys("installed_sw/OpenSSL");
exit(0);
}
include('vcf.inc');
include('vcf_extras_openssl.inc');
var app_info = vcf::combined_get_app_info(app:'OpenSSL');
vcf::check_all_backporting(app_info:app_info);
var constraints = [
{ 'min_version' : '1.0.2', 'fixed_version' : '1.0.2zj' }
];
vcf::openssl::check_version_and_report(
app_info:app_info,
constraints:constraints,
severity:SECURITY_WARNING
);
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
AI Score
Confidence
High
EPSS
Percentile
71.6%