KB4457984: Windows Server 2008 September 2018 Security Update

High Nessus Plugin ID 117420

Synopsis

The remote Windows host is affected by multiple vulnerabilities.

Description

The remote Windows host is missing security update 4457984
or cumulative update 4458010. It is, therefore, affected by
multiple vulnerabilities :

- An information disclosure vulnerability exists in
Windows when the Windows bowser.sys kernel-mode driver
fails to properly handle objects in memory. An attacker
who successfully exploited the vulnerability could
potentially disclose contents of System memory.
(CVE-2018-8271)

- An information disclosure vulnerability exists when the
Windows GDI component improperly discloses the contents
of its memory. An attacker who successfully exploited
the vulnerability could obtain information to further
compromise the users system. There are multiple ways an
attacker could exploit the vulnerability, such as by
convincing a user to open a specially crafted document,
or by convincing a user to visit an untrusted webpage.
The security update addresses the vulnerability by
correcting how the Windows GDI component handles objects
in memory. (CVE-2018-8424)

- 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-2018-8392,
CVE-2018-8393)

- A remote code execution vulnerability exists when
Windows does not properly handle specially crafted image
files. An attacker who successfully exploited the
vulnerability could execute arbitrary code.
(CVE-2018-8475)

- A remote code execution vulnerability exists when the
Microsoft XML Core Services MSXML parser processes user
input. An attacker who successfully exploited the
vulnerability could run malicious code remotely to take
control of the users system. (CVE-2018-8420)

- An information disclosure vulnerability exists when the
Windows Graphics component improperly handles objects in
memory. An attacker who successfully exploited this
vulnerability could obtain information to further
compromise the users system. An authenticated attacker
could exploit this vulnerability by running a specially
crafted application. The update addresses the
vulnerability by correcting how the Windows Graphics
Component handles objects in memory. (CVE-2018-8433)

- 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-2018-8447)

- 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-2018-8440)

- 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. An authenticated attacker could exploit this
vulnerability by running a specially crafted
application. The update addresses the vulnerability by
correcting how the Windows kernel handles objects in
memory. (CVE-2018-8442, CVE-2018-8443)

- An information disclosure vulnerability exists when the
Windows kernel fails to properly initialize a memory
address. An attacker who successfully exploited this
vulnerability could obtain information to further
compromise the users system. (CVE-2018-8419)

- An information disclosure vulnerability exists when
Windows Hyper-V on a host operating system fails to
properly validate input from an authenticated user on a
guest operating system. (CVE-2018-8434)

- A remote code execution vulnerability exists when the
Windows font library improperly handles specially
crafted embedded fonts. 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-2018-8332)

- An elevation of privilege vulnerability exists in
Windows that allows a sandbox escape. An attacker who
successfully exploited the vulnerability could use the
sandbox escape to elevate privileges on an affected
system. This vulnerability by itself does not allow
arbitrary code execution. However, the vulnerability
could allow arbitrary code to run if an attacker uses it
in combination with another vulnerability, such as a
remote code execution vulnerability or another elevation
of privilege vulnerability, that can leverage the
elevated privileges when code execution is attempted.
The security update addresses the vulnerability by
correcting how Windows parses files. (CVE-2018-8468)

- A remote code execution vulnerability exists when
Microsoft .NET Framework processes input. An attacker
who successfully exploited this vulnerability could take
control of an affected system. (CVE-2018-8421)

- 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-2018-8336, CVE-2018-8446)

Solution

Apply Security Only update KB4457984 or Cumulative Update KB4458010.

See Also

http://www.nessus.org/u?70366c1b

http://www.nessus.org/u?3a9824bb

Plugin Details

Severity: High

ID: 117420

File Name: smb_nt_ms18_sep_4458010.nasl

Version: 1.7

Type: local

Agent: windows

Published: 2018/09/11

Modified: 2018/10/11

Dependencies: 93962, 57033, 13855

Risk Information

Risk Factor: High

CVSS Score Source: manual

CVSS Score Rationale: Score based on analysis of the vendor advisory.

CVSS v2.0

Base Score: 9

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C

CVSS v3.0

Base Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Vulnerability Information

CPE: cpe:/o:microsoft:windows

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2018/09/11

Vulnerability Publication Date: 2018/09/11

Exploitable With

Metasploit (Microsoft Windows ALPC Task Scheduler Local Privilege Elevation)

Reference Information

CVE: CVE-2018-8271, CVE-2018-8332, CVE-2018-8336, CVE-2018-8392, CVE-2018-8393, CVE-2018-8419, CVE-2018-8420, CVE-2018-8421, CVE-2018-8424, CVE-2018-8433, CVE-2018-8434, CVE-2018-8440, CVE-2018-8442, CVE-2018-8443, CVE-2018-8446, CVE-2018-8447, CVE-2018-8468, CVE-2018-8475

MSKB: 4457984, 4458010

MSFT: MS18-4457984, MS18-4458010