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
7.5 High
AI Score
Confidence
High
0.003 Low
EPSS
Percentile
71.3%
The version of tested product installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the 2024_Feb_13 advisory.
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(190535);
script_version("1.2");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/03/15");
script_cve_id("CVE-2024-21404");
script_xref(name:"IAVA", value:"2024-A-0089-S");
script_name(english:"Security Update for Microsoft .NET Core (February 2024)");
script_set_attribute(attribute:"synopsis", value:
"The remote Windows host is affected by a .NET Core vulnerability");
script_set_attribute(attribute:"description", value:
"The version of tested product installed on the remote host is prior to tested version. It is, therefore, affected by a
vulnerability as referenced in the 2024_Feb_13 advisory.
- .NET Denial of Service Vulnerability (CVE-2024-21404)
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/6.0");
script_set_attribute(attribute:"see_also", value:"https://dotnet.microsoft.com/en-us/download/dotnet/7.0");
script_set_attribute(attribute:"see_also", value:"https://dotnet.microsoft.com/en-us/download/dotnet/8.0");
script_set_attribute(attribute:"see_also", value:"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21404");
script_set_attribute(attribute:"see_also", value:"https://support.microsoft.com/help/5035119");
script_set_attribute(attribute:"see_also", value:"https://support.microsoft.com/help/5035120");
script_set_attribute(attribute:"see_also", value:"https://support.microsoft.com/help/5035121");
# https://github.com/dotnet/core/blob/master/release-notes/6.0/6.0.27/6.0.27.md
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?5c6a0fcb");
# https://github.com/dotnet/core/blob/master/release-notes/7.0/7.0.16/7.0.16.md
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?18384751");
# https://github.com/dotnet/core/blob/master/release-notes/8.0/8.0.2/8.0.2.md
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?83ecb845");
script_set_attribute(attribute:"solution", value:
"Update .NET Core, remove vulnerable packages and refer to vendor advisory.");
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-2024-21404");
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:"2024/02/13");
script_set_attribute(attribute:"patch_publication_date", value:"2024/02/13");
script_set_attribute(attribute:"plugin_publication_date", value:"2024/02/14");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:.net_core");
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:"Windows");
script_copyright(english:"This script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("microsoft_dotnet_core_win.nbin");
script_require_keys("installed_sw/.NET Core Windows");
exit(0);
}
include('vcf.inc');
get_kb_item_or_exit('SMB/Registry/Enumerated');
var app_info = vcf::get_app_info(app:'.NET Core Windows', win_local:TRUE);
var constraints = [
{ 'min_version' : '6.0', 'fixed_version' : '6.0.27' },
{ 'min_version' : '7.0', 'fixed_version' : '7.0.16' },
{ 'min_version' : '8.0', 'fixed_version' : '8.0.2' }
];
vcf::check_version_and_report(
app_info:app_info,
constraints:constraints,
severity:SECURITY_HOLE
);
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-21404
www.nessus.org/u?18384751
www.nessus.org/u?5c6a0fcb
www.nessus.org/u?83ecb845
dotnet.microsoft.com/download/dotnet/6.0
dotnet.microsoft.com/en-us/download/dotnet/7.0
dotnet.microsoft.com/en-us/download/dotnet/8.0
msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21404
support.microsoft.com/help/5035119
support.microsoft.com/help/5035120
support.microsoft.com/help/5035121
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
7.5 High
AI Score
Confidence
High
0.003 Low
EPSS
Percentile
71.3%