The remote Windows host is missing security update 4601363 or cumulative update 4601347. It is, therefore, affected by multiple vulnerabilities :
An elevation of privilege vulnerability exists when an attacker establishes a vulnerable Netlogon secure channel connection to a domain controller, using the Netlogon Remote Protocol (MS-NRPC). An attacker who successfully exploited the vulnerability could run a specially crafted application on a device on the network. (Enforcement mode) (CVE-2020-1472)
A denial of service (DoS) vulnerability. An attacker can exploit this issue to cause the affected component to deny system or application services. (CVE-2021-24080, CVE-2021-24086)
An elevation of privilege vulnerability. An attacker can exploit this to gain elevated privileges.
(CVE-2021-1727, CVE-2021-24102, CVE-2021-24103, CVE-2021-25195)
A remote code execution vulnerability. An attacker can exploit this to bypass authentication and execute unauthorized arbitrary commands. (CVE-2021-1722, CVE-2021-24074, CVE-2021-24077, CVE-2021-24078, CVE-2021-24083, CVE-2021-24088, CVE-2021-24094)
An information disclosure vulnerability. An attacker can exploit this to disclose potentially sensitive information. (CVE-2021-1734)
#
# (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(146342);
script_version("1.14");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/22");
script_cve_id(
"CVE-2020-1472",
"CVE-2021-1722",
"CVE-2021-1727",
"CVE-2021-1734",
"CVE-2021-24074",
"CVE-2021-24077",
"CVE-2021-24078",
"CVE-2021-24080",
"CVE-2021-24083",
"CVE-2021-24086",
"CVE-2021-24088",
"CVE-2021-24094",
"CVE-2021-24102",
"CVE-2021-24103",
"CVE-2021-25195"
);
script_xref(name:"MSKB", value:"4601363");
script_xref(name:"MSKB", value:"4601347");
script_xref(name:"MSFT", value:"MS21-4601363");
script_xref(name:"MSFT", value:"MS21-4601347");
script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2020/09/21");
script_xref(name:"CISA-NCAS", value:"AA22-011A");
script_xref(name:"CEA-ID", value:"CEA-2020-0129");
script_xref(name:"CEA-ID", value:"CEA-2020-0101");
script_xref(name:"CEA-ID", value:"CEA-2021-0025");
script_xref(name:"CEA-ID", value:"CEA-2021-0008");
script_xref(name:"CEA-ID", value:"CEA-2020-0121");
script_xref(name:"CEA-ID", value:"CEA-2023-0016");
script_name(english:"KB4601363: Windows 7 and Windows Server 2008 R2 February 2021 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 4601363
or cumulative update 4601347. It is, therefore, affected by
multiple vulnerabilities :
- An elevation of privilege vulnerability exists when an
attacker establishes a vulnerable Netlogon secure
channel connection to a domain controller, using the
Netlogon Remote Protocol (MS-NRPC). An attacker who
successfully exploited the vulnerability could run a
specially crafted application on a device on the
network. (Enforcement mode) (CVE-2020-1472)
- A denial of service (DoS) vulnerability. An attacker can
exploit this issue to cause the affected component to
deny system or application services. (CVE-2021-24080,
CVE-2021-24086)
- An elevation of privilege vulnerability. An attacker can
exploit this to gain elevated privileges.
(CVE-2021-1727, CVE-2021-24102, CVE-2021-24103,
CVE-2021-25195)
- A remote code execution vulnerability. An attacker can
exploit this to bypass authentication and execute
unauthorized arbitrary commands. (CVE-2021-1722,
CVE-2021-24074, CVE-2021-24077, CVE-2021-24078,
CVE-2021-24083, CVE-2021-24088, CVE-2021-24094)
- An information disclosure vulnerability. An attacker can
exploit this to disclose potentially sensitive
information. (CVE-2021-1734)");
# https://support.microsoft.com/en-us/topic/february-9-2021-kb4601363-security-only-update-a37e890f-974f-7bdb-2664-b627e9436b06
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?d1f488e9");
# https://support.microsoft.com/en-us/topic/february-9-2021-kb4601347-monthly-rollup-c0ae9599-f93d-68ee-7542-0aa3564f3190
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?3b47172c");
script_set_attribute(attribute:"solution", value:
"Apply Security Only update KB4601363 or Cumulative Update KB4601347.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:H/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-1472");
script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2021-24094");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"exploited_by_malware", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2021/02/09");
script_set_attribute(attribute:"patch_publication_date", value:"2021/02/09");
script_set_attribute(attribute:"plugin_publication_date", value:"2021/02/09");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:microsoft:windows");
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) 2021-2024 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 = 'MS21-02';
kbs = make_list('4601363', '4601347');
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(win7:'1') <= 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:'6.1',
sp:1,
rollup_date:'02_2021',
bulletin:bulletin,
rollup_kb_list:[4601363, 4601347])
)
{
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-2020-1472
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1722
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1727
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1734
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-24074
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-24077
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-24078
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-24080
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-24083
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-24086
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-24088
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-24094
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-24102
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-24103
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-25195
www.nessus.org/u?3b47172c
www.nessus.org/u?d1f488e9