KB4041691: Windows 10 Version 1607 and Windows Server 2016 October 2017 Cumulative Update (KRACK)

This script is Copyright (C) 2017 Tenable Network Security, Inc.


Synopsis :

The remote Windows host is affected by multiple vulnerabilities.

Description :

The remote Windows host is missing security update 4041691.
It is, therefore, affected by multiple vulnerabilities :

- An information disclosure vulnerability exists when the
Windows kernel improperly handles objects in memory. An
attacker who successfully exploited this vulnerability
could obtain information to further compromise the users
system. (CVE-2017-11765, CVE-2017-11814)

- An elevation of privilege vulnerability exists when the
Windows Update Delivery Optimization does not properly
enforce file share permissions. An attacker who
successfully exploited the vulnerability could overwrite
files that require higher privileges than what the
attacker already has. (CVE-2017-11829)

- A remote code execution vulnerability exists when the
Windows font library improperly handles specially
crafted embedded fonts. An attacker who successfully
exploited the vulnerability could take control of the
affected system. An attacker could then install
programs; view, change, or delete data; or create new
accounts with full user rights. (CVE-2017-11762,
CVE-2017-11763)

- An elevation of privilege vulnerability exists when
Windows improperly handles calls to Advanced Local
Procedure Call (ALPC). An attacker who successfully
exploited this vulnerability could run arbitrary code in
the security context of the local system. An attacker
could then install programs; view, change, or delete
data; or create new accounts with full user rights.
(CVE-2017-11783)

- A remote code execution vulnerability
exists in Windows Domain Name System (DNS) DNSAPI.dll
when it fails to properly handle DNS responses. An
attacker who successfully exploited the vulnerability
could run arbitrary code in the context of the Local
System Account. (CVE-2017-11779)

- A remote code execution vulnerability exists in the way
that the scripting engine handles objects in memory in
Microsoft Edge. 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-2017-11798,
CVE-2017-11799, CVE-2017-11800, CVE-2017-11802,
CVE-2017-11804, CVE-2017-11808, CVE-2017-11811,
CVE-2017-11812)

- A buffer overflow vulnerability exists in the Microsoft
JET Database Engine that could allow remote code
execution on an affected system. An attacker who
successfully exploited this vulnerability could take
control of an affected system. An attacker could then
install programs; view, change, or delete data; or
create new accounts with full user rights. Users whose
accounts are configured to have fewer user rights on the
system could be less impacted than users who operate
with administrative user rights. (CVE-2017-8717,
CVE-2017-8718)

- A security feature bypass vulnerability exists in Device
Guard that could allow an attacker to inject malicious
code into a Windows PowerShell session. An attacker who
successfully exploited this vulnerability could inject
code into a trusted PowerShell process to bypass the
Device Guard Code Integrity policy on the local machine.
(CVE-2017-11823, CVE-2017-8715)

- An information disclosure vulnerability exists when the
Windows kernel improperly initializes objects in memory.
(CVE-2017-11817)

- 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-2017-11793, CVE-2017-11810)

- An elevation of privilege vulnerability exists in the
default Windows SMB Server configuration which allows
anonymous users to remotely access certain named pipes
that are also configured to allow anonymous access to
users who are logged on locally. An unauthenticated
attacker who successfully exploits this configuration
error could remotely send specially crafted requests to
certain services that accept requests via named pipes.
(CVE-2017-11782)

- An Information disclosure vulnerability exists when
Windows Search improperly handles objects in memory. An
attacker who successfully exploited the vulnerability
could obtain information to further compromise the users
system. (CVE-2017-11772)

- An elevation of privilege vulnerability exists when the
Windows Graphics Component improperly handles objects in
memory. An attacker who successfully exploited this
vulnerability could run processes in an elevated
context. (CVE-2017-11824)

- A remote code execution vulnerability exists when
Internet Explorer improperly accesses objects in memory
via the Microsoft Windows Text Services Framework. 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-2017-8727)

- An Security Feature bypass vulnerability exists in
Microsoft Windows storage when it fails to validate an
integrity-level check. An attacker who successfully
exploited the vulnerability could allow an application
with a certain integrity level to execute code at a
different integrity level. The update addresses the
vulnerability by correcting how Microsoft storage
validates an integrity-level check. (CVE-2017-11818)

- A remote code execution vulnerability exists when
Windows Search handles objects in memory. An attacker
who successfully exploited this vulnerability could take
control of the affected system. An attacker could then
install programs; view, change, or delete data; or
create new accounts with full user rights.
(CVE-2017-11771)

- An information disclosure vulnerability exists in the
way that the Windows SMB Server handles certain
requests. An authenticated attacker who successfully
exploited this vulnerability could craft a special
packet, which could lead to information disclosure from
the server. (CVE-2017-11815)

- A denial of service vulnerability exists in the
Microsoft Server Block Message (SMB) when an attacker
sends specially crafted requests to the server. An
attacker who exploited this vulnerability could cause
the affected system to crash. To attempt to exploit this
issue, an attacker would need to send specially crafted
SMB requests to the target system. Note that the denial
of service vulnerability would not allow an attacker to
execute code or to elevate their user rights, but it
could cause the affected system to stop accepting
requests. The security update addresses the
vulnerability by correcting the manner in which SMB
handles specially crafted client requests.
(CVE-2017-11781)

- An elevation of privilege vulnerability exists when the
Windows kernel-mode driver fails to properly handle
objects in memory. An attacker who successfully
exploited this vulnerability could run arbitrary code in
kernel mode. An attacker could then install programs;
view, change, or delete data; or create new accounts
with full user rights. (CVE-2017-8689, CVE-2017-8694)

- A remote code execution vulnerability exists in the way
that the Microsoft Server Message Block 1.0 (SMBv1)
server handles certain requests. An attacker who
successfully exploited the vulnerability could gain the
ability to execute code on the target server.
(CVE-2017-11780)

- An information disclosure vulnerability exists when the
Microsoft Windows Graphics Component improperly handles
objects in memory. An attacker who successfully
exploited the vulnerability could obtain information to
further compromise the users system. (CVE-2017-8693)

- An information disclosure vulnerability exists in the
way that the Windows Graphics Device Interface (GDI)
handles objects in memory, allowing an attacker to
retrieve information from a targeted system. By itself,
the information disclosure does not allow arbitrary code
execution; however, it could allow arbitrary code to be
run if the attacker uses it in combination with another
vulnerability. (CVE-2017-11816)

- A remote code execution vulnerability exists in the way
the scripting engine handle objects in memory in
Microsoft browsers. 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-2017-11809)

- An information disclosure vulnerability exists in the
Windows kernel that could allow an attacker to retrieve
information that could lead to a Kernel Address Space
Layout Randomization (ASLR) bypass. An attacker who
successfully exploited the vulnerability could retrieve
the memory address of a kernel object. (CVE-2017-11785)

- A remote code execution vulnerability exists in the way
that certain Windows components handle the loading of
DLL files. An attacker who successfully exploited this
vulnerability could take complete control of an affected
system. An attacker could then install programs; view,
change, or delete data; or create new accounts with full
user rights. (CVE-2017-11769)

- A remote code execution vulnerability exists in the way
affected Microsoft scripting engines render when
handling objects in memory in Microsoft Edge. 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-2017-8726)

- An information disclosure vulnerability exists when
Internet Explorer improperly handles objects in memory.
An attacker who successfully exploited the vulnerability
could obtain information to further compromise the users
system. (CVE-2017-11790)

- 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-2017-11822)

- A spoofing vulnerability exists in the Windows
implementation of wireless networking. An attacker who
successfully exploited this vulnerability could
potentially replay broadcast and/or multicast traffic
to hosts on a WPA or WPA 2-protected wireless network.
(CVE-2017-13080)

See also :

http://www.nessus.org/u?62ef3ec8

Solution :

Apply security update KB4041691.

Risk factor :

High / CVSS Base Score : 7.6
(CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 6.0
(CVSS2#E:POC/RL:OF/RC:ND)
Public Exploit Available : true