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
EPSS
Percentile
44.7%
The version of Microsoft .NET Core SDK installed on the remote host is prior to 7.0.10. It is, therefore, affected by a denial-of-service (DoS) vulnerability. The vulnerability exists in .NET Kestrel where a malicious client can bypass QUIC stream limit in HTTP/3 in both ASP.NET and .NET runtimes resulting in denial of service.
Note that Nessus has not tested for this issue 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(180501);
script_version("1.1");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/09/06");
script_cve_id("CVE-2023-38178");
script_xref(name:"MSKB", value:"5029688");
script_xref(name:"MSFT", value:"MS23-5029688");
script_name(english:"Security Update for .NET 7.0 Core SDK (CVE-2023-38178)");
script_set_attribute(attribute:"synopsis", value:
"The remote Windows host is affected by a .NET Core SDK denial-of-service vulnerability.");
script_set_attribute(attribute:"description", value:
"The version of Microsoft .NET Core SDK installed on the remote host is prior to 7.0.10. It is, therefore, affected by
a denial-of-service (DoS) vulnerability. The vulnerability exists in .NET Kestrel where a malicious client can bypass
QUIC stream limit in HTTP/3 in both ASP.NET and .NET runtimes resulting in denial of service.
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
script_set_attribute(attribute:"see_also", value:"https://dotnet.microsoft.com/download/dotnet/7.0");
script_set_attribute(attribute:"see_also", value:"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-38178");
# https://github.com/dotnet/core/blob/main/release-notes/7.0/7.0.10/7.0.10.md
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?f7b7e1c7");
script_set_attribute(attribute:"solution", value:
"Update .NET Core SDK, remove vulnerable packages and refer to KB5029688.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/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:L/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-2023-38178");
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:"2023/08/08");
script_set_attribute(attribute:"patch_publication_date", value:"2023/08/08");
script_set_attribute(attribute:"plugin_publication_date", value:"2023/09/05");
script_set_attribute(attribute:"potential_vulnerability", value:"true");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:.net_core");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Windows");
script_copyright(english:"This script is Copyright (C) 2023 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("microsoft_dotnet_core_sdk_win.nbin");
script_require_keys("installed_sw/.NET Core SDK Windows", "Settings/ParanoidReport");
exit(0);
}
include('vcf.inc');
if (report_paranoia < 2) audit(AUDIT_PARANOID);
var app = '.NET Core SDK Windows';
var app_info = vcf::get_app_info(app:app, win_local:TRUE);
var constraints = [
{'min_version': '7.0', 'fixed_version': '7.0.110'},
{'min_version': '7.0.200', 'fixed_version': '7.0.307', 'fixed_display': '7.0.307 / 7.0.400'}
];
vcf::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_HOLE);
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
EPSS
Percentile
44.7%