7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
7.6 High
CVSS2
Access Vector
Access Complexity
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:H/Au:N/C:C/I:C/A:C
0.968 High
EPSS
Percentile
99.7%
The Internet Explorer installation on the remote host is missing security updates. It is, therefore, affected by multiple vulnerabilities :
A remote code execution vulnerability exists when Internet Explorer improperly accesses objects in memory.
The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. (CVE-2018-8631)
A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer. The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user.
(CVE-2018-8643)
A remote code execution vulnerability exists when the Internet Explorer VBScript execution policy does not properly restrict VBScript under specific conditions. An attacker who exploited the vulnerability could run arbitrary code with medium-integrity level privileges (the permissions of the current user). (CVE-2018-8619)
A remote code execution vulnerability exists in the way that the VBScript engine handles objects in memory. The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. (CVE-2018-8625)
#
# (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(119594);
script_version("1.6");
script_cvs_date("Date: 2019/11/01");
script_cve_id(
"CVE-2018-8619",
"CVE-2018-8625",
"CVE-2018-8631",
"CVE-2018-8643"
);
script_bugtraq_id(
106117,
106118,
106119,
106122
);
script_xref(name:"MSKB", value:"4471325");
script_xref(name:"MSKB", value:"4471320");
script_xref(name:"MSKB", value:"4471318");
script_xref(name:"MSKB", value:"4471330");
script_xref(name:"MSKB", value:"4470199");
script_xref(name:"MSFT", value:"MS18-4471325");
script_xref(name:"MSFT", value:"MS18-4471320");
script_xref(name:"MSFT", value:"MS18-4471318");
script_xref(name:"MSFT", value:"MS18-4471330");
script_xref(name:"MSFT", value:"MS18-4470199");
script_name(english:"Security Updates for Internet Explorer (December 2018)");
script_summary(english:"Checks for Microsoft security updates.");
script_set_attribute(attribute:"synopsis", value:
"The Internet Explorer installation on the remote host is affected by multiple vulnerabilities.");
script_set_attribute(attribute:"description", value:
"The Internet Explorer installation on the remote host is
missing security updates. It is, therefore, affected by
multiple vulnerabilities :
- A remote code execution vulnerability exists when
Internet Explorer improperly accesses objects in memory.
The vulnerability could corrupt memory in such a way
that an attacker could execute arbitrary code in the
context of the current user. An attacker who
successfully exploited the vulnerability could gain the
same user rights as the current user. (CVE-2018-8631)
- A remote code execution vulnerability exists in the way
that the scripting engine handles objects in memory in
Internet Explorer. The vulnerability could corrupt
memory in such a way that an attacker could execute
arbitrary code in the context of the current user. An
attacker who successfully exploited the vulnerability
could gain the same user rights as the current user.
(CVE-2018-8643)
- A remote code execution vulnerability exists when the
Internet Explorer VBScript execution policy does not
properly restrict VBScript under specific conditions. An
attacker who exploited the vulnerability could run
arbitrary code with medium-integrity level privileges
(the permissions of the current user). (CVE-2018-8619)
- A remote code execution vulnerability exists in the way
that the VBScript engine handles objects in memory. The
vulnerability could corrupt memory in such a way that an
attacker could execute arbitrary code in the context of
the current user. An attacker who successfully exploited
the vulnerability could gain the same user rights as the
current user. (CVE-2018-8625)");
# https://support.microsoft.com/en-us/help/4471325/windows-server-2008-update-kb4471325
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?2da08abc");
# https://support.microsoft.com/en-us/help/4471320/windows-8-1-update-kb4471320
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?56bb4eaa");
# https://support.microsoft.com/en-us/help/4471318/windows-7-update-kb4471318
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?4b518909");
# https://support.microsoft.com/en-us/help/4471330/windows-server-2012-kb4471330
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?720406bc");
# https://support.microsoft.com/en-us/help/4470199/cumulative-security-update-for-internet-explorer
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?801bfd5d");
script_set_attribute(attribute:"solution", value:
"Microsoft has released the following security updates to address this issue:
-KB4471325
-KB4471320
-KB4471318
-KB4471330
-KB4470199");
script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-8643");
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:"2018/12/11");
script_set_attribute(attribute:"patch_publication_date", value:"2018/12/11");
script_set_attribute(attribute:"plugin_publication_date", value:"2018/12/11");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:microsoft:windows");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Windows : Microsoft Bulletins");
script_copyright(english:"This script is Copyright (C) 2018-2019 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 = 'MS18-12';
kbs = make_list(
'4471325',
'4471320',
'4471318',
'4471330',
'4470199'
);
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");
os = get_kb_item_or_exit("SMB/WindowsVersion", exit_code:1);
if (hotfix_check_sp_range(vista:'2', win7:'1', win8:'0', win81:'0') <= 0) audit(AUDIT_OS_SP_NOT_VULN);
productname = get_kb_item_or_exit("SMB/ProductName", exit_code:1);
if ("Windows 8" >< productname && "8.1" >!< productname)
audit(AUDIT_OS_SP_NOT_VULN);
if ("Vista" >< productname) audit(AUDIT_OS_SP_NOT_VULN);
if (hotfix_check_server_core() == 1) audit(AUDIT_WIN_SERVER_CORE);
share = hotfix_get_systemdrive(as_share:TRUE, exit_on_fail:TRUE);
if (!is_accessible_share(share:share)) audit(AUDIT_SHARE_FAIL, share);
if (
# Windows 8.1 / Windows Server 2012 R2
# Internet Explorer 11
hotfix_is_vulnerable(os:"6.3", sp:0, file:"mshtml.dll", version:"11.0.9600.19204", min_version:"11.0.9600.16000", dir:"\system32", bulletin:bulletin, kb:"4470199") ||
# Windows Server 2012
# Internet Explorer 10
hotfix_is_vulnerable(os:"6.2", sp:0, file:"mshtml.dll", version:"10.0.9200.22620", min_version:"10.0.9200.16000", dir:"\system32", bulletin:bulletin, kb:"4470199") ||
# Windows 7 / Server 2008 R2
# Internet Explorer 11
hotfix_is_vulnerable(os:"6.1", sp:1, file:"mshtml.dll", version:"11.0.9600.19204", min_version:"11.0.9600.16000", dir:"\system32", bulletin:bulletin, kb:"4470199") ||
# Windows Server 2008
# Internet Explorer 9
hotfix_is_vulnerable(os:"6.0", sp:2, file:"mshtml.dll", version:"9.0.8112.21291", min_version:"9.0.8112.16000", dir:"\system32", bulletin:bulletin, kb:"4470199")
)
{
report = '\nNote: The fix for this issue is available in either of the following updates:\n';
report += ' - KB4470199 : Cumulative Security Update for Internet Explorer\n';
if(os == "6.3")
{
report += ' - KB4471320 : Windows 8.1 / Server 2012 R2 Monthly Rollup\n';
hotfix_add_report(bulletin:'MS18-12', kb:'4471320', report);
}
else if(os == "6.2")
{
report += ' - KB4471330 : Windows Server 2012 Monthly Rollup\n';
hotfix_add_report(bulletin:'MS18-12', kb:'4471330', report);
}
else if(os == "6.1")
{
report += ' - KB4471318 : Windows 7 / Server 2008 R2 Monthly Rollup\n';
hotfix_add_report(bulletin:'MS18-12', kb:'4471318', report);
}
set_kb_item(name:'SMB/Missing/'+bulletin, value:TRUE);
hotfix_security_hole();
hotfix_check_fversion_end();
}
else
{
hotfix_check_fversion_end();
audit(AUDIT_HOST_NOT, hotfix_get_audit_report());
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-8619
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-8625
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-8631
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-8643
www.nessus.org/u?2da08abc
www.nessus.org/u?4b518909
www.nessus.org/u?56bb4eaa
www.nessus.org/u?720406bc
www.nessus.org/u?801bfd5d
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
7.6 High
CVSS2
Access Vector
Access Complexity
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:H/Au:N/C:C/I:C/A:C
0.968 High
EPSS
Percentile
99.7%