KB4565540: Windows 8.1 and Windows Server 2012 R2 July 2020 Security Update

high Nessus Plugin ID 138463
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

The remote Windows host is affected by multiple vulnerabilities.

Description

The remote Windows host is missing security update 4565540 or cumulative update 4565541. It is, therefore, affected by multiple vulnerabilities :

- A remote code execution vulnerability exists in the way that DirectWrite 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. 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 DirectWrite handles objects in memory. (CVE-2020-1409)

- An elevation of privilege vulnerability exists in the way that the Windows Credential Picker handles objects in memory. An attacker who successfully exploited the vulnerability could allow an application with limited privileges on an affected system to execute code at a medium integrity level. (CVE-2020-1385)

- An elevation of privilege vulnerability exists when the Windows Profile Service improperly handles file operations. An attacker who successfully exploited this vulnerability could gain elevated privileges.
(CVE-2020-1360)

- 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-2020-1403)

- A remote code execution vulnerability exists in the Windows Remote Desktop Client when a user connects to a malicious server. An attacker who successfully exploited this vulnerability could execute arbitrary code on the computer of the connecting client. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.
(CVE-2020-1374)

- A remote code execution vulnerability exists when the Windows font library improperly handles specially crafted fonts. For all systems except Windows 10, an attacker who successfully exploited the vulnerability could execute code remotely. For systems running Windows 10, an attacker who successfully exploited the vulnerability could execute code in an AppContainer sandbox context with limited privileges and capabilities. An attacker could then install programs;
view, change, or delete data; or create new accounts with full user rights. There are multiple ways an attacker could exploit the vulnerability:
(CVE-2020-1436)

- An elevation of privilege vulnerability exists in the way that the Credential Enrollment Manager service handles objects in memory. An attacker who successfully exploited the vulnerability could execute code with elevated permissions. (CVE-2020-1368)

- An elevation of privilege vulnerability exists in the way that the Windows Network List Service handles objects in memory. An attacker who successfully exploited the vulnerability could execute code with elevated permissions. (CVE-2020-1406)

- An elevation of privilege vulnerability exists when the Windows UPnP Device Host improperly handles memory.
(CVE-2020-1354, CVE-2020-1430)

- 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-2020-1468)

- An elevation of privilege vulnerability exists when the Windows Event Logging Service improperly handles memory.
(CVE-2020-1365, CVE-2020-1371)

- An elevation of privilege vulnerability exists in the way that the Windows Network Location Awareness Service handles objects in memory. An attacker who successfully exploited the vulnerability could allow an application with limited privileges on an affected system to execute code at a medium integrity level. (CVE-2020-1437)

- An information disclosure vulnerability exists in Windows when the Windows Imaging Component fails to properly handle objects in memory. An attacker who successfully exploited this vulnerability could obtain information to further compromise the user's system.
There are multiple ways an attacker could exploit this vulnerability: (CVE-2020-1397)

- A remote code execution vulnerability exists when Windows Address Book (WAB) improperly processes vcard files. (CVE-2020-1410)

- 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-2020-1351)

- An elevation of privilege vulnerability exists when Group Policy Services Policy Processing improperly handle reparse points. An attacker who successfully exploited this vulnerability could overwrite a targeted file that would normally require elevated permissions.
(CVE-2020-1333)

- 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-2020-1408)

- An elevation of privilege vulnerability exists when the Windows Modules Installer improperly handles file operations. An attacker who successfully exploited this vulnerability could gain elevated privileges.
(CVE-2020-1346)

- 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-2020-1396)

- An information disclosure vulnerability exists when Skype for Business is accessed via Internet Explorer. An attacker who exploited the vulnerability could cause the user to place a call without additional consent, leading to information disclosure of the user profile. For the vulnerability to be exploited, a user must click a specially crafted URL that prompts the Skype app.
(CVE-2020-1432)

- An elevation of privilege vulnerability exists when the Windows ActiveX Installer Service improperly handles memory. (CVE-2020-1402)

- A remote code execution vulnerability exists in .NET Framework, Microsoft SharePoint, and Visual Studio when the software fails to check the source markup of XML file input. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the process responsible for deserialization of the XML content. (CVE-2020-1147)

- An elevation of privilege vulnerability exists when the Windows Cryptography Next Generation (CNG) Key Isolation service improperly handles memory. An attacker who successfully exploited this vulnerability could run processes in an elevated context. (CVE-2020-1359, CVE-2020-1384)

- An elevation of privilege vulnerability exists in the way that the Windows Network Connections Service handles objects in memory. An attacker who successfully exploited the vulnerability could execute code with elevated permissions. (CVE-2020-1373, CVE-2020-1390, CVE-2020-1427, CVE-2020-1428, CVE-2020-1438)

- An elevation of privilege vulnerability exists in the way that the Windows Function Discovery Service handles objects in memory. An attacker who successfully exploited the vulnerability could execute code with elevated permissions. (CVE-2020-1085)

- A remote code execution vulnerability exists in the way that Microsoft Graphics Components handle objects in memory. An attacker who successfully exploited the vulnerability could execute arbitrary code on a target system. (CVE-2020-1412)

- A remote code execution vulnerability exists when the Windows Jet Database Engine improperly handles objects in memory. An attacker who successfully exploited this vulnerability could execute arbitrary code on a victim system. An attacker could exploit this vulnerability by enticing a victim to open a specially crafted file. The update addresses the vulnerability by correcting the way the Windows Jet Database Engine handles objects in memory. (CVE-2020-1400, CVE-2020-1401, CVE-2020-1407)

- 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-2020-1389, CVE-2020-1419)

- An elevation of privilege vulnerability exists when the Windows Runtime improperly handles objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in an elevated context. An attacker could exploit this vulnerability by running a specially crafted application on the victim system. The update addresses the vulnerability by correcting the way the Windows Runtime handles objects in memory.
(CVE-2020-1249, CVE-2020-1399)

- An elevation of privilege vulnerability exists when the Windows iSCSI Target Service improperly handles file operations. An attacker who successfully exploited this vulnerability could gain elevated privileges.
(CVE-2020-1356)

- This security update corrects a denial of service in the Local Security Authority Subsystem Service (LSASS) caused when an authenticated attacker sends a specially crafted authentication request. A remote attacker who successfully exploited this vulnerability could cause a denial of service on the target system's LSASS service, which triggers an automatic reboot of the system. The security update addresses the vulnerability by changing the way that LSASS handles specially crafted authentication requests. (CVE-2020-1267)

- A remote code execution vulnerability exists in the way that the Windows Graphics Device Interface (GDI) handles objects in the 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-2020-1435)

- A remote code execution vulnerability exists in Microsoft Windows that could allow remote code execution if a .LNK file is processed. An attacker who successfully exploited this vulnerability could gain the same user rights as the local user. (CVE-2020-1421)

Solution

Apply Security Only update KB4565540 or Cumulative Update KB4565541.

See Also

https://support.microsoft.com/en-us/help/4565540/windows-8-1-kb4565540

https://support.microsoft.com/en-us/help/4565541/windows-8-1-kb4565541

Plugin Details

Severity: High

ID: 138463

File Name: smb_nt_ms20_jul_4565541.nasl

Version: 1.12

Type: local

Agent: windows

Published: 7/14/2020

Updated: 11/30/2021

Dependencies: smb_check_rollup.nasl, smb_hotfixes.nasl, ms_bulletin_checks_possible.nasl

Risk Information

CVSS Score Source: CVE-2020-1435

VPR

Risk Factor: Critical

Score: 9

CVSS v2

Risk Factor: High

Base Score: 9.3

Temporal Score: 8.1

Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C

Temporal Vector: E:H/RL:OF/RC:C

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 8.4

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

Temporal Vector: E:H/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:microsoft:windows

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/14/2020

Vulnerability Publication Date: 7/14/2020

Exploitable With

Metasploit (SharePoint DataSet / DataTable Deserialization)

Reference Information

CVE: CVE-2020-1085, CVE-2020-1147, CVE-2020-1249, CVE-2020-1267, CVE-2020-1333, CVE-2020-1346, CVE-2020-1351, CVE-2020-1354, CVE-2020-1356, CVE-2020-1359, CVE-2020-1360, CVE-2020-1365, CVE-2020-1368, CVE-2020-1371, CVE-2020-1373, CVE-2020-1374, CVE-2020-1384, CVE-2020-1385, CVE-2020-1389, CVE-2020-1390, CVE-2020-1396, CVE-2020-1397, CVE-2020-1399, CVE-2020-1400, CVE-2020-1401, CVE-2020-1402, CVE-2020-1403, CVE-2020-1406, CVE-2020-1407, CVE-2020-1408, CVE-2020-1409, CVE-2020-1410, CVE-2020-1412, CVE-2020-1419, CVE-2020-1421, CVE-2020-1427, CVE-2020-1428, CVE-2020-1430, CVE-2020-1432, CVE-2020-1435, CVE-2020-1436, CVE-2020-1437, CVE-2020-1438, CVE-2020-1468

MSKB: 4565540, 4565541

MSFT: MS20-4565540, MS20-4565541

IAVA: 2020-A-0306-S, 2020-A-0313-S