Vulnerabilidades do Microsoft Windows Server, version 1903 (Server Core installation)

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CVEs publicadas que afetam Microsoft Windows Server, version 1903 (Server Core installation): 6 registro(s), com versões afetadas e correções.

CVE-2020-17087 Alta · 7.8 KEV Alta · 55 CWE-131 11/11/2020

Microsoft Windows Kernel Privilege Escalation Vulnerability

Windows Kernel Local Elevation of Privilege Vulnerability

CVE-2020-1472 Média · 5.5 KEV Urgente · 96 Exploit público Ransomware 17/08/2020

Microsoft Netlogon Privilege Escalation Vulnerability

An elevation of privilege vulnerability exists when an attacker establishes a vulnerable Netlogon secure channel connection to a domain controller, using the Netlogon Remote Protocol (MS-NRPC). An attacker who successfully exploited the vulnerability could run a specially crafted application on a device on the network. To exploit the vulnerability, an unauthenticated attacker would be required to use MS-NRPC to connect to a domain controller to obtain domain administrator access. Microsoft is addressing the vulnerability in a phased two-part rollout. These updates address the vulnerability by modifying how Netlogon handles the usage of Netlogon secure channels. For guidelines on how to manage the changes required for this vulnerability and more information on the phased rollout, see How to manage the changes in Netlogon secure channel connections associated with CVE-2020-1472 (updated September 28, 2020). When the second phase of Windows updates become available in Q1 2021, customers will be notified via a revision to this security vulnerability. If you wish to be notified when these updates are released, we recommend that you register for the security notifications mailer to be alerted of content changes to this advisory. See Microsoft Technical Security Notifications.

CVE-2020-1464 Alta · 7.8 KEV Alta · 56 CWE-347 17/08/2020

Microsoft Windows Spoofing Vulnerability

A spoofing vulnerability exists when Windows incorrectly validates file signatures. An attacker who successfully exploited this vulnerability could bypass security features and load improperly signed files. In an attack scenario, an attacker could bypass security features intended to prevent improperly signed files from being loaded. The update addresses the vulnerability by correcting how Windows validates file signatures.

CVE-2020-1054 Alta · 7.0 KEV Alta · 68 Exploit público CWE-787 21/05/2020

Microsoft Win32k Privilege Escalation Vulnerability

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. 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 kernel-mode driver handles objects in memory.

CVE-2019-1064 Alta · 7.8 KEV Alta · 65 Ransomware CWE-59 12/06/2019

Microsoft Windows AppX Deployment Service (AppXSVC) Privilege Escalation Vulnerability

An elevation of privilege vulnerability exists when Windows AppX Deployment Service (AppXSVC) improperly handles hard links. An attacker who successfully exploited this vulnerability could run processes in an elevated context. An attacker could then install programs; view, change or delete data. 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 security update addresses the vulnerability by correcting how Windows AppX Deployment Service handles hard links.

CVE-2019-1069 Alta · 7.8 KEV Alta · 65 Ransomware CWE-59 12/06/2019

Microsoft Task Scheduler Privilege Escalation Vulnerability

An elevation of privilege vulnerability exists in the way the Task Scheduler Service validates certain file operations. An attacker who successfully exploited the vulnerability could gain elevated privileges on a victim system. To exploit the vulnerability, an attacker would require unprivileged code execution on a victim system. The security update addresses the vulnerability by correctly validating file operations.