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Vuln ID | Summary | CVSS Severity |
---|---|---|
CVE-2022-21919 |
Windows User Profile Service Elevation of Privilege Vulnerability Published: January 11, 2022; 4:15:13 PM -0500 |
V4.0:(not available) V3.1: 7.0 HIGH V2.0: 6.9 MEDIUM |
CVE-2022-21882 |
Win32k Elevation of Privilege Vulnerability Published: January 11, 2022; 4:15:11 PM -0500 |
V4.0:(not available) V3.1: 7.8 HIGH V2.0: 7.2 HIGH |
CVE-2022-21871 |
Microsoft Diagnostics Hub Standard Collector Runtime Elevation of Privilege Vulnerability Published: January 11, 2022; 4:15:10 PM -0500 |
V4.0:(not available) V3.1: 7.8 HIGH V2.0: 7.2 HIGH |
CVE-2021-43890 |
We have investigated reports of a spoofing vulnerability in AppX installer that affects Microsoft Windows. Microsoft is aware of attacks that attempt to exploit this vulnerability by using specially crafted packages that include the malware family known as Emotet/Trickbot/Bazaloader. An attacker could craft a malicious attachment to be used in phishing campaigns. The attacker would then have to convince the user to open the specially crafted attachment. 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. Please see the Security Updates table for the link to the updated app. Alternatively you can download and install the Installer using the links provided in the FAQ section. Please see the Mitigations and Workaround sections for important information about steps you can take to protect your system from this vulnerability. December 27 2023 Update: In recent months, Microsoft Threat Intelligence has seen an increase in activity from threat actors leveraging social engineering and phishing techniques to target Windows OS users and utilizing the ms-appinstaller URI scheme. To address this increase in activity, we have updated the App Installer to disable the ms-appinstaller protocol by default and recommend other potential mitigations. Published: December 15, 2021; 10:15:11 AM -0500 |
V4.0:(not available) V3.1: 7.1 HIGH V2.0: 6.0 MEDIUM |
CVE-2021-41379 |
Windows Installer Elevation of Privilege Vulnerability Published: November 09, 2021; 8:19:32 PM -0500 |
V4.0:(not available) V3.1: 5.5 MEDIUM V2.0: 4.6 MEDIUM |
CVE-2021-41357 |
Win32k Elevation of Privilege Vulnerability Published: October 12, 2021; 9:15:13 PM -0400 |
V4.0:(not available) V3.1: 7.8 HIGH V2.0: 4.6 MEDIUM |
CVE-2021-40450 |
Win32k Elevation of Privilege Vulnerability Published: October 12, 2021; 9:15:09 PM -0400 |
V4.0:(not available) V3.1: 7.8 HIGH V2.0: 4.6 MEDIUM |
CVE-2021-40449 |
Win32k Elevation of Privilege Vulnerability Published: October 12, 2021; 9:15:09 PM -0400 |
V4.0:(not available) V3.1: 7.8 HIGH V2.0: 4.6 MEDIUM |
CVE-2021-34527 |
<p>A remote code execution vulnerability exists when the Windows Print Spooler service improperly performs privileged file operations. An attacker who successfully exploited this vulnerability could run arbitrary code with SYSTEM privileges. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.</p> <p>UPDATE July 7, 2021: The security update for Windows Server 2012, Windows Server 2016 and Windows 10, Version 1607 have been released. Please see the Security Updates table for the applicable update for your system. We recommend that you install these updates immediately. If you are unable to install these updates, see the FAQ and Workaround sections in this CVE for information on how to help protect your system from this vulnerability.</p> <p>In addition to installing the updates, in order to secure your system, you must confirm that the following registry settings are set to 0 (zero) or are not defined (<strong>Note</strong>: These registry keys do not exist by default, and therefore are already at the secure setting.), also that your Group Policy setting are correct (see FAQ):</p> <ul> <li>HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows NT\Printers\PointAndPrint</li> <li>NoWarningNoElevationOnInstall = 0 (DWORD) or not defined (default setting)</li> <li>UpdatePromptSettings = 0 (DWORD) or not defined (default setting)</li> </ul> <p><strong>Having NoWarningNoElevationOnInstall set to 1 makes your system vulnerable by design.</strong></p> <p>UPDATE July 6, 2021: Microsoft has completed the investigation and has released security updates to address this vulnerability. Please see the Security Updates table for the applicable update for your system. We recommend that you install these updates immediately. If you are unable to install these updates, see the FAQ and Workaround sections in this CVE for information on how to help protect your system from this vulnerability. See also <a href="https://support.microsoft.com/topic/31b91c02-05bc-4ada-a7ea-183b129578a7">KB5005010: Restricting installation of new printer drivers after applying the July 6, 2021 updates</a>.</p> <p>Note that the security updates released on and after July 6, 2021 contain protections for CVE-2021-1675 and the additional remote code execution exploit in the Windows Print Spooler service known as “PrintNightmare”, documented in CVE-2021-34527.</p> Published: July 02, 2021; 6:15:08 PM -0400 |
V4.0:(not available) V3.1: 8.8 HIGH V2.0: 9.0 HIGH |