Microsoft: >> Windows Server 2016 >> 1903 Security Vulnerabilities
An elevation of privilege vulnerability exists when the Windows fails to properly handle objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.
To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application to take control of an affected system.
The update addresses the vulnerability by correcting how the Windows handles objects in memory.
CVSS Score
7.8
EPSS Score
0.01
Published
2020-05-21
An elevation of privilege vulnerability exists when the Windows Printer Service improperly validates file paths while loading printer drivers. An authenticated attacker who successfully exploited this vulnerability could run arbitrary code with elevated system privileges.
To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and take control of an affected system.
The update addresses this vulnerability by correcting how the Windows Printer Service validates file paths.
CVSS Score
7.8
EPSS Score
0.009
Published
2020-05-21
An elevation of privilege vulnerability exists in Windows Error Reporting (WER) when WER handles and executes files. The vulnerability could allow elevation of privilege if an attacker can successfully exploit it.
An attacker who successfully exploited the vulnerability could gain greater access to sensitive information and system functionality. To exploit the vulnerability, an attacker could run a specially crafted application.
The security update addresses the vulnerability by correcting the way that WER handles and executes files.
CVSS Score
7.8
EPSS Score
0.01
Published
2020-05-21
A cross-site-scripting (XSS) vulnerability exists when Active Directory Federation Services (ADFS) does not properly sanitize user inputs. An un-authenticated attacker could exploit the vulnerability by sending a specially crafted request to an affected ADFS server.
The attacker who successfully exploited the vulnerability could then perform cross-site scripting attacks on affected systems and run scripts in the security context of the current user.
This security update addresses the vulnerability by ensuring that ADFS properly sanitizes user inputs.
CVSS Score
5.5
EPSS Score
0.024
Published
2020-05-21
A remote code execution vulnerability exists in the way that the Microsoft Script Runtime 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. If the current user is logged on with administrative user rights, an attacker who successfully exploited the 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.
In a web-based attack scenario, an attacker could host a specially crafted website that is designed to exploit the vulnerability through Internet Explorer and then convince a user to view the website. An attacker could also embed an ActiveX control marked "safe for initialization" in an application or Microsoft Office document that hosts the IE rendering engine. The attacker could also take advantage of compromised websites and websites that accept or host user-provided content or advertisements. These websites could contain specially crafted content that could exploit the vulnerability.
The security update addresses the vulnerability by modifying how the Microsoft Script Runtime handles objects in memory.
CVSS Score
7.5
EPSS Score
0.033
Published
2020-05-21
A remote code execution vulnerability exists in the way that Windows handles objects in memory. An attacker who successfully exploited the vulnerability could execute arbitrary code with elevated permissions on a target system.
To exploit the vulnerability, an attacker who has a domain user account could create a specially crafted request, causing Windows to execute arbitrary code with elevated permissions.
The security update addresses the vulnerability by correcting how Windows handles objects in memory.
CVSS Score
7.8
EPSS Score
0.025
Published
2020-05-21
An elevation of privilege vulnerability exists in Windows Media Service that allows file creation in arbitrary locations.
To exploit the vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and take control of an affected system.
The update addresses the vulnerability by correcting how the Windows Media Service handles file creation.
CVSS Score
7.8
EPSS Score
0.009
Published
2020-05-21
A denial of service vulnerability exists when Hyper-V on a Windows Server fails to properly handle specially crafted network packets.
To exploit the vulnerability, an attacker would send specially crafted network packets to the Hyper-V Server.
The security update addresses the vulnerability by resolving the conditions where Hyper-V would fail to properly handle these network packets.
CVSS Score
7.5
EPSS Score
0.046
Published
2020-05-21
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 user’s 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.
CVSS Score
5.5
EPSS Score
0.046
Published
2020-05-21
An elevation of privilege vulnerability exists in Windows Block Level Backup Engine Service (wbengine) that allows file deletion in arbitrary locations.
To exploit the vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and take control of an affected system.
The update addresses the vulnerability by correcting how the Windows Block Level Backup Engine Service handles file operations.
CVSS Score
7.8
EPSS Score
0.01
Published
2020-05-21