The Internet Explorer installation on the remote host is missing security updates. It is, therefore, affected by multiple vulnerabilities :
#
# (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(118009);
script_version("1.5");
script_cvs_date("Date: 2019/11/01");
script_cve_id("CVE-2018-8460", "CVE-2018-8491");
script_xref(name:"MSKB", value:"4462926");
script_xref(name:"MSKB", value:"4462949");
script_xref(name:"MSKB", value:"4462923");
script_xref(name:"MSFT", value:"MS18-4462926");
script_xref(name:"MSFT", value:"MS18-4462949");
script_xref(name:"MSFT", value:"MS18-4462923");
script_name(english:"Security Updates for Internet Explorer (October 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-2018-8460,
CVE-2018-8491)");
# https://support.microsoft.com/en-us/help/4462926/windows-8-update-kb4462926
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?554e569a");
# https://support.microsoft.com/en-us/help/4462949/cumulative-security-update-for-internet-explorer
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?bb999f1f");
# https://support.microsoft.com/en-us/help/4462923/windows-7-update-kb4462923
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?07e1318e");
script_set_attribute(attribute:"solution", value:
"Microsoft has released the following security updates to address this issue:
-KB4462926
-KB4462949
-KB4462923");
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:U/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:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-8460");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"vuln_publication_date", value:"2018/10/09");
script_set_attribute(attribute:"patch_publication_date", value:"2018/10/09");
script_set_attribute(attribute:"plugin_publication_date", value:"2018/10/09");
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 = 'MS18-10';
kb = '4462949'; # IE Cumulative
kbs = make_list(
'4462923', # Win 7 / 2008 R2
'4462926', # Win 8.1 /2012 R2
kb # IE Cumulative
);
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:"11.0.9600.19155", min_version:"11.0.9600.16000", dir:"\system32", bulletin:bulletin, kb:kb) ||
# Windows Server 2012
# Internet Explorer 10
hotfix_is_vulnerable(os:"6.2", sp:0, file:"mshtml.dll", version:"10.0.9200.22572", min_version:"10.0.9200.16000", dir:"\system32", bulletin:bulletin, kb:kb) ||
# Windows 7 / Server 2008 R2
# Internet Explorer 11
hotfix_is_vulnerable(os:"6.1", sp:1, file:"mshtml.dll", version:"11.0.9600.19155", min_version:"11.0.9600.16000", dir:"\system32", bulletin:bulletin, kb:kb) ||
# Windows Server 2008
# Internet Explorer 9
hotfix_is_vulnerable(os:"6.0", sp:2, file:"mshtml.dll", version:"9.0.8112.21272", min_version:"9.0.8112.16000", dir:"\system32", bulletin:bulletin, kb:kb)
)
{
report = '\nNote: The fix for this issue is available in either of the following updates:\n';
report += ' - KB4462949 : Cumulative Security Update for Internet Explorer\n';
if(os == "6.3")
{
report += ' - KB4462926 : Windows 8.1 / Server 2012 R2 Monthly Rollup\n';
hotfix_add_report(bulletin:'MS18-10', kb:'4462926', report);
}
else if(os == "6.1")
{
report += ' - KB4462923 : Windows 7 / Server 2008 R2 Monthly Rollup\n';
hotfix_add_report(bulletin:'MS18-10', kb:'4462923', 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());
}