The Microsoft .NET Framework installation on the remote host is missing a security update. It is, therefore, affected by a remote code execution vulnerability.
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##
# The descriptive text and package checks in this plugin were
# extracted from the Microsoft Security Updates API. The text
# itself is copyright (C) Microsoft Corporation.
#
include('compat.inc');
if (description)
{
script_id(168398);
script_version("1.3");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/09/20");
script_cve_id("CVE-2022-26929");
script_xref(name:"MSKB", value:"5017022");
script_xref(name:"MSKB", value:"5017024");
script_xref(name:"MSKB", value:"5017025");
script_xref(name:"MSKB", value:"5017028");
script_xref(name:"MSKB", value:"5017029");
script_xref(name:"MSKB", value:"5017030");
script_xref(name:"MSFT", value:"MS22-5017022");
script_xref(name:"MSFT", value:"MS22-5017024");
script_xref(name:"MSFT", value:"MS22-5017025");
script_xref(name:"MSFT", value:"MS22-5017028");
script_xref(name:"MSFT", value:"MS22-5017029");
script_xref(name:"MSFT", value:"MS22-5017030");
script_xref(name:"IAVA", value:"2022-A-0376-S");
script_name(english:"Security Updates for Microsoft .NET Framework (September 2022)");
script_set_attribute(attribute:"synopsis", value:
"The Microsoft .NET Framework installation on the remote host is missing a security update.");
script_set_attribute(attribute:"description", value:
"The Microsoft .NET Framework installation on the remote host is missing a security update. It is, therefore, affected
by a remote code execution vulnerability.");
# https://devblogs.microsoft.com/dotnet/dotnet-framework-september-2022-security-and-quality-rollup/
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?8867409d");
# https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2022-26929
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?bfadca4c");
script_set_attribute(attribute:"see_also", value:"https://support.microsoft.com/en-us/help/5017022");
script_set_attribute(attribute:"see_also", value:"https://support.microsoft.com/en-us/help/5017024");
script_set_attribute(attribute:"see_also", value:"https://support.microsoft.com/en-us/help/5017025");
script_set_attribute(attribute:"see_also", value:"https://support.microsoft.com/en-us/help/5017028");
script_set_attribute(attribute:"see_also", value:"https://support.microsoft.com/en-us/help/5017029");
script_set_attribute(attribute:"see_also", value:"https://support.microsoft.com/en-us/help/5017030");
script_set_attribute(attribute:"solution", value:
"Microsoft has released security updates for Microsoft .NET Framework.");
script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:F/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2022-26929");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2022/09/13");
script_set_attribute(attribute:"patch_publication_date", value:"2022/09/13");
script_set_attribute(attribute:"plugin_publication_date", value:"2022/12/05");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:.net_framework");
script_set_attribute(attribute:"stig_severity", value:"I");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Windows : Microsoft Bulletins");
script_copyright(english:"This script is Copyright (C) 2022-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("smb_check_dotnet_rollup.nasl", "smb_hotfixes.nasl", "ms_bulletin_checks_possible.nasl", "microsoft_net_framework_installed.nasl");
script_require_keys("SMB/MS_Bulletin_Checks/Possible");
script_require_ports(139, 445, "Host/patch_management_checks");
exit(0);
}
include('install_func.inc');
include('smb_func.inc');
include('smb_hotfixes.inc');
include('smb_hotfixes_fcheck.inc');
get_kb_item_or_exit('SMB/MS_Bulletin_Checks/Possible');
var bulletin = 'MS21-02';
var kbs = make_list(
'5017022',
'5017024',
'5017025',
'5017028',
'5017029',
'5017030'
);
if (get_kb_item('Host/patch_management_checks')) hotfix_check_3rd_party(bulletin:bulletin, kbs:kbs, severity:SECURITY_HOLE);
get_kb_item_or_exit('SMB/Registry/Enumerated');
var windows_version = get_kb_item_or_exit('SMB/WindowsVersion', exit_code:1);
var windows_build = get_kb_item_or_exit('SMB/WindowsVersionBuild', exit_code:1);
if (windows_version != 10 || windows_build < 19042)
exit(0, '.NET update contained in Windows Rollup');
var share = hotfix_get_systemdrive(exit_on_fail:TRUE, as_share:TRUE);
if (!is_accessible_share(share:share)) audit(AUDIT_SHARE_FAIL, share);
var app = 'Microsoft .NET Framework';
get_install_count(app_name:app, exit_if_zero:TRUE);
var installs = get_combined_installs(app_name:app);
var install, version;
var vuln = 0;
if (installs[0] == 0)
{
foreach install (installs[1])
{
version = install['version'];
if( version != UNKNOWN_VER &&
smb_check_dotnet_rollup(rollup_date:'09_2022', dotnet_ver:version))
vuln++;
}
}
if(vuln)
{
hotfix_security_hole();
hotfix_check_fversion_end();
exit(0);
}
else
{
hotfix_check_fversion_end();
audit(AUDIT_HOST_NOT, 'affected');
}
Vendor | Product | Version | CPE |
---|---|---|---|
microsoft | .net_framework | cpe:/a:microsoft:.net_framework |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-26929
www.nessus.org/u?8867409d
www.nessus.org/u?bfadca4c
support.microsoft.com/en-us/help/5017022
support.microsoft.com/en-us/help/5017024
support.microsoft.com/en-us/help/5017025
support.microsoft.com/en-us/help/5017028
support.microsoft.com/en-us/help/5017029
support.microsoft.com/en-us/help/5017030