KB4338824: Windows 8.1 and Windows Server 2012 R2 July 2018 Security Update

High Nessus Plugin ID 110981

Synopsis

The remote Windows host is affected by multiple vulnerabilities.

Description

The remote Windows host is missing security update 4338824
or cumulative update 4338815. It is, therefore, affected by
multiple vulnerabilities :

- An elevation of privilege vulnerability exists in .NET
Framework which could allow an attacker to elevate their
privilege level. (CVE-2018-8202)

- 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-2018-8242, CVE-2018-8296)

- A denial of service 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 cause a
system to stop responding. Note that the denial of
service condition would not allow an attacker to execute
code or to elevate user privileges. However, the denial
of service condition could prevent authorized users from
using system resources. (CVE-2018-8304)

- A denial of service vulnerability exists when Windows
improperly handles objects in memory. An attacker who
successfully exploited the vulnerability could cause a
target system to stop responding. (CVE-2018-8309)

- An elevation of privilege vulnerability exists in
Windows 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-2018-8282)

- A denial of service vulnerability exists when Windows
improperly handles File Transfer Protocol (FTP)
connections. An attacker who successfully exploited the
vulnerability could cause a target system to stop
responding. (CVE-2018-8206)

- A security feature bypass vulnerability exists when
Microsoft Internet Explorer improperly handles requests
involving UNC resources. An attacker who successfully
exploited the vulnerability could force the browser to
load data that would otherwise be restricted.
(CVE-2018-0949)

- An elevation of privilege vulnerability exists when the
Windows kernel 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-2018-8308)

- A security feature bypass vulnerability exists when
Microsoft WordPad improperly handles embedded OLE
objects. An attacker who successfully exploited the
vulnerability could bypass content blocking. In a file-
sharing attack scenario, an attacker could provide a
specially crafted document file designed to exploit the
vulnerability, and then convince a user to open the
document file. The security update addresses the
vulnerability by correcting how Microsoft WordPad
handles input. (CVE-2018-8307)

- A Remote Code Execution vulnerability exists in .NET
software when the software fails to check the source
markup of a file. An attacker who successfully exploited
the vulnerability could run arbitrary code in the
context of the current user. If the current user is
logged on with administrative user rights, an attacker
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-2018-8260)

- An elevation of privilege vulnerability exists in the
way that the Windows Kernel API enforces permissions. An
attacker who successfully exploited the vulnerability
could impersonate processes, interject cross-process
communication, or interrupt system functionality.
(CVE-2018-8313)

- A remote code execution vulnerability exists in the way
the scripting engine handles 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-2018-8287, CVE-2018-8288, CVE-2018-8291)

- A remote code execution vulnerability exists when the
Microsoft .NET Framework fails to validate input
properly. 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-2018-8284)

- An elevation of privilege vulnerability exists when
Windows fails a check, allowing 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
file picker handles paths. (CVE-2018-8314)

- A security feature bypass vulnerability exists when
Microsoft .NET Framework components do not correctly
validate certificates. An attacker could present expired
certificates when challenged. The security update
addresses the vulnerability by ensuring that .NET
Framework components correctly validate certificates.
(CVE-2018-8356)

Solution

Apply Security Only update KB4338824 or Cumulative Update KB4338815.

See Also

http://www.nessus.org/u?e0106ae8

http://www.nessus.org/u?be1b803d

Plugin Details

Severity: High

ID: 110981

File Name: smb_nt_ms18_jul_4338815.nasl

Version: 1.3

Type: local

Agent: windows

Published: 2018/07/10

Modified: 2018/08/16

Dependencies: 57033, 13855, 93962

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 7.2

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

CVSS v3.0

Base Score: 8.8

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

Vulnerability Information

CPE: cpe:/o:microsoft:windows

Patch Publication Date: 2018/07/10

Vulnerability Publication Date: 2018/07/10

Reference Information

CVE: CVE-2018-0949, CVE-2018-8202, CVE-2018-8206, CVE-2018-8242, CVE-2018-8260, CVE-2018-8282, CVE-2018-8284, CVE-2018-8287, CVE-2018-8288, CVE-2018-8291, CVE-2018-8296, CVE-2018-8304, CVE-2018-8307, CVE-2018-8308, CVE-2018-8309, CVE-2018-8313, CVE-2018-8314, CVE-2018-8356

BID: 104617, 104620, 104622, 104629, 104631, 104634, 104636, 104637, 104638, 104648, 104652, 104664, 104665, 104666, 104667, 104668, 104669, 104670

MSKB: 4338815, 4338824

MSFT: MS18-4338815, MS18-4338824