CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
HIGH
Availability Impact
LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:L
AI Score
Confidence
Low
EPSS
Percentile
99.8%
The remote Windows host is missing security update 5005627 or cumulative update 5005613. It is, therefore, affected by multiple vulnerabilities :
An memory corruption vulnerability exists. An attacker can exploit this to corrupt the memory and cause unexpected behaviors within the system/application.
(CVE-2021-26435)
An information disclosure vulnerability. An attacker can exploit this to disclose potentially sensitive information. (CVE-2021-36960, CVE-2021-36962, CVE-2021-36969, CVE-2021-36972, CVE-2021-38629, CVE-2021-38635, CVE-2021-38636)
A remote code execution vulnerability. An attacker can exploit this to bypass authentication and execute unauthorized arbitrary commands. (CVE-2021-36965, CVE-2021-36958, CVE-2021-40444)
An elevation of privilege vulnerability. An attacker can exploit this to gain elevated privileges.
(CVE-2021-36955, CVE-2021-36963, CVE-2021-36964, CVE-2021-36974, CVE-2021-38628, CVE-2021-38630, CVE-2021-38633, CVE-2021-38638, CVE-2021-38639, CVE-2021-38667, CVE-2021-38671, CVE-2021-40447)
A denial of service (DoS) vulnerability. An attacker can exploit this issue to cause the affected component to deny system or application services. (CVE-2021-36961)
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-2021-38624)
A session spoofing vulnerability exists. An attacker can exploit this to perform actions with the privileges of another user. (CVE-2021-36959)
#%NASL_MIN_LEVEL 70300
#
# (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('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(153375);
script_version("1.11");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/17");
script_cve_id(
"CVE-2021-26435",
"CVE-2021-36955",
"CVE-2021-36958",
"CVE-2021-36959",
"CVE-2021-36960",
"CVE-2021-36961",
"CVE-2021-36962",
"CVE-2021-36963",
"CVE-2021-36964",
"CVE-2021-36965",
"CVE-2021-36969",
"CVE-2021-36972",
"CVE-2021-36974",
"CVE-2021-38624",
"CVE-2021-38628",
"CVE-2021-38629",
"CVE-2021-38630",
"CVE-2021-38633",
"CVE-2021-38635",
"CVE-2021-38636",
"CVE-2021-38638",
"CVE-2021-38639",
"CVE-2021-38667",
"CVE-2021-38671",
"CVE-2021-40444",
"CVE-2021-40447"
);
script_xref(name:"IAVA", value:"2021-A-0429-S");
script_xref(name:"IAVA", value:"2021-A-0431-S");
script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2021/11/17");
script_xref(name:"MSKB", value:"5005613");
script_xref(name:"MSKB", value:"5005627");
script_xref(name:"MSFT", value:"MS21-5005613");
script_xref(name:"MSFT", value:"MS21-5005627");
script_name(english:"KB5005627: Windows 8.1 and Windows Server 2012 R2 September 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 5005627
or cumulative update 5005613. It is, therefore, affected by
multiple vulnerabilities :
- An memory corruption vulnerability exists. An attacker
can exploit this to corrupt the memory and cause
unexpected behaviors within the system/application.
(CVE-2021-26435)
- An information disclosure vulnerability. An attacker can
exploit this to disclose potentially sensitive
information. (CVE-2021-36960, CVE-2021-36962,
CVE-2021-36969, CVE-2021-36972, CVE-2021-38629,
CVE-2021-38635, CVE-2021-38636)
- A remote code execution vulnerability. An attacker can
exploit this to bypass authentication and execute
unauthorized arbitrary commands. (CVE-2021-36965,
CVE-2021-36958, CVE-2021-40444)
- An elevation of privilege vulnerability. An attacker can
exploit this to gain elevated privileges.
(CVE-2021-36955, CVE-2021-36963, CVE-2021-36964,
CVE-2021-36974, CVE-2021-38628, CVE-2021-38630,
CVE-2021-38633, CVE-2021-38638, CVE-2021-38639,
CVE-2021-38667, CVE-2021-38671, CVE-2021-40447)
- A denial of service (DoS) vulnerability. An attacker can
exploit this issue to cause the affected component to
deny system or application services. (CVE-2021-36961)
- 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-2021-38624)
- A session spoofing vulnerability exists. An attacker can
exploit this to perform actions with the privileges of
another user. (CVE-2021-36959)");
# https://support.microsoft.com/en-us/topic/september-14-2021-kb5005627-security-only-update-3404d598-7d6e-4007-93e8-49438460791f
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?c74eba5d");
# https://support.microsoft.com/en-us/topic/september-14-2021-kb5005613-monthly-rollup-47b217aa-8d33-4b29-b444-77fcbe57410b
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?f099b11d");
script_set_attribute(attribute:"solution", value:
"Apply Security Only update KB5005627 or Cumulative Update KB5005613.");
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:R/S:C/C:L/I:H/A:L");
script_set_cvss3_temporal_vector("CVSS:3.0/E:H/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-36958");
script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2021-40444");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"exploit_framework_core", value:"true");
script_set_attribute(attribute:"exploited_by_malware", value:"true");
script_set_attribute(attribute:"metasploit_name", value:'Microsoft Office Word Malicious MSHTML RCE');
script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
script_set_attribute(attribute:"exploit_framework_canvas", value:"true");
script_set_attribute(attribute:"canvas_package", value:"CANVAS");
script_set_attribute(attribute:"vuln_publication_date", value:"2021/09/14");
script_set_attribute(attribute:"patch_publication_date", value:"2021/09/14");
script_set_attribute(attribute:"plugin_publication_date", value:"2021/09/14");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:microsoft:windows_8");
script_set_attribute(attribute:"cpe", value:"cpe:/o:microsoft:windows_server_2012:r2");
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 = "MS21-09";
kbs = make_list('5005627', '5005613');
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(win81:'0') <= 0) audit(AUDIT_OS_SP_NOT_VULN);
# Windows 8 EOL
productname = get_kb_item_or_exit('SMB/ProductName', exit_code:1);
if ("Windows 8" >< productname && "8.1" >!< productname)
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:"6.3",
sp:0,
rollup_date:'09_2021',
bulletin:bulletin,
rollup_kb_list:[5005627, 5005613])
)
{
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-2021-26435
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36955
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36958
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36959
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36960
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36961
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36962
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36963
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36964
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36965
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36969
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36972
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36974
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-38624
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-38628
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-38629
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-38630
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-38633
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-38635
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-38636
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-38638
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-38639
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-38667
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-38671
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-40444
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-40447
www.nessus.org/u?c74eba5d
www.nessus.org/u?f099b11d
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
HIGH
Availability Impact
LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:L
AI Score
Confidence
Low
EPSS
Percentile
99.8%