CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:S/C:C/I:C/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
AI Score
Confidence
Low
EPSS
Percentile
87.3%
The remote Windows host is missing security update 4593226.
It is, therefore, affected by multiple vulnerabilities:
An elevation of privilege vulnerability. An attacker can exploit this to gain elevated privileges.
(CVE-2020-16958, CVE-2020-16959, CVE-2020-16960, CVE-2020-16961, CVE-2020-16962, CVE-2020-16963, CVE-2020-16964, CVE-2020-17092, CVE-2020-17097)
A remote code execution vulnerability. An attacker can exploit this to bypass authentication and execute unauthorized arbitrary commands. (CVE-2020-17095, CVE-2020-17096)
A security feature bypass vulnerability exists. An attacker can exploit this and bypass the security feature and perform unauthorized actions compromising the integrity of the system/application.
(CVE-2020-16996, CVE-2020-17099)
An information disclosure vulnerability. An attacker can exploit this to disclose potentially sensitive information. (CVE-2020-17098, CVE-2020-17138, CVE-2020-17140)
#
# (C) Tenable Network Security, 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(143569);
script_version("1.8");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/17");
script_cve_id(
"CVE-2020-16958",
"CVE-2020-16959",
"CVE-2020-16960",
"CVE-2020-16961",
"CVE-2020-16962",
"CVE-2020-16963",
"CVE-2020-16964",
"CVE-2020-16996",
"CVE-2020-17092",
"CVE-2020-17095",
"CVE-2020-17096",
"CVE-2020-17097",
"CVE-2020-17098",
"CVE-2020-17099",
"CVE-2020-17138",
"CVE-2020-17140"
);
script_xref(name:"MSKB", value:"4593226");
script_xref(name:"MSFT", value:"MS20-4593226");
script_xref(name:"IAVA", value:"2020-A-0561-S");
script_xref(name:"IAVA", value:"2020-A-0562-S");
script_xref(name:"CEA-ID", value:"CEA-2020-0138");
script_name(english:"KB4593226: Windows 10 Version 1607 and Windows Server 2016 December 2020 Security Update");
script_set_attribute(attribute:"synopsis", value:
"The remote Windows host is affected by multiple vulnerabilities.");
script_set_attribute(attribute:"description", value:
"The remote Windows host is missing security update 4593226.
It is, therefore, affected by multiple vulnerabilities:
- An elevation of privilege vulnerability. An attacker can
exploit this to gain elevated privileges.
(CVE-2020-16958, CVE-2020-16959, CVE-2020-16960,
CVE-2020-16961, CVE-2020-16962, CVE-2020-16963,
CVE-2020-16964, CVE-2020-17092, CVE-2020-17097)
- A remote code execution vulnerability. An attacker can
exploit this to bypass authentication and execute
unauthorized arbitrary commands. (CVE-2020-17095,
CVE-2020-17096)
- A security feature bypass vulnerability exists. An
attacker can exploit this and bypass the security
feature and perform unauthorized actions compromising
the integrity of the system/application.
(CVE-2020-16996, CVE-2020-17099)
- An information disclosure vulnerability. An attacker can
exploit this to disclose potentially sensitive
information. (CVE-2020-17098, CVE-2020-17138,
CVE-2020-17140)");
# https://support.microsoft.com/en-us/help/4593226/windows-10-update-kb4593226
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?779e1d95");
script_set_attribute(attribute:"solution", value:
"Apply Cumulative Update KB4586830.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:S/C:C/I:C/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:L/UI:N/S:C/C:H/I:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"manual");
script_set_attribute(attribute:"cvss_score_rationale", value:"Score based on analysis of the vendor advisory.");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"vuln_publication_date", value:"2020/12/08");
script_set_attribute(attribute:"patch_publication_date", value:"2020/12/08");
script_set_attribute(attribute:"plugin_publication_date", value:"2020/12/08");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:microsoft:windows_10_1607");
script_set_attribute(attribute:"cpe", value:"cpe:/o:microsoft:windows_server_2016");
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) 2020-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("smb_check_rollup.nasl", "smb_hotfixes.nasl", "ms_bulletin_checks_possible.nasl");
script_require_keys("SMB/MS_Bulletin_Checks/Possible");
script_require_ports(139, 445, "Host/patch_management_checks");
exit(0);
}
include("audit.inc");
include("smb_hotfixes_fcheck.inc");
include("smb_hotfixes.inc");
include("smb_func.inc");
include("misc_func.inc");
get_kb_item_or_exit("SMB/MS_Bulletin_Checks/Possible");
bulletin = 'MS20-12';
kbs = make_list('4593226');
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');
get_kb_item_or_exit('SMB/WindowsVersion', exit_code:1);
if (hotfix_check_sp_range(win10:'0') <= 0) audit(AUDIT_OS_SP_NOT_VULN);
share = hotfix_get_systemdrive(as_share:TRUE, exit_on_fail:TRUE);
if (!is_accessible_share(share:share)) audit(AUDIT_SHARE_FAIL, share);
if (
smb_check_rollup(os:'10',
sp:0,
os_build:'14393',
rollup_date:'12_2020',
bulletin:bulletin,
rollup_kb_list:[4593226])
)
{
replace_kb_item(name:'SMB/Missing/'+bulletin, value:TRUE);
hotfix_security_hole();
hotfix_check_fversion_end();
exit(0);
}
else
{
hotfix_check_fversion_end();
audit(AUDIT_HOST_NOT, hotfix_get_audit_report());
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16958
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16959
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16960
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16961
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16962
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16963
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16964
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16996
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-17092
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-17095
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-17096
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-17097
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-17098
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-17099
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-17138
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-17140
www.nessus.org/u?779e1d95
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:S/C:C/I:C/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
AI Score
Confidence
Low
EPSS
Percentile
87.3%