| CVE |
Vendors |
Products |
Updated |
CVSS v3.1 |
| A remote code execution vulnerability exists when MSDT is called using the URL protocol from a calling application such as Word. An attacker who successfully exploits this vulnerability can run arbitrary code with the privileges of the calling application. The attacker can then install programs, view, change, or delete data, or create new accounts in the context allowed by the user’s rights.
Please see the MSRC Blog Entry for important information about steps you can take to protect your system from this vulnerability. |
| Win32k Elevation of Privilege Vulnerability |
| Windows User Profile Service Elevation of Privilege Vulnerability |
| Windows Runtime Remote Code Execution Vulnerability |
| Windows Print Spooler Elevation of Privilege Vulnerability |
| Windows Client Server Run-time Subsystem (CSRSS) Elevation of Privilege Vulnerability |
| Windows Print Spooler Elevation of Privilege Vulnerability |
| Active Directory Domain Services Elevation of Privilege Vulnerability |
| Windows Common Log File System Driver Elevation of Privilege Vulnerability |
| 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.
|
| Windows Advanced Local Procedure Call (ALPC) Elevation of Privilege Vulnerability |
| Win32k Elevation of Privilege Vulnerability |
| Win32k Elevation of Privilege Vulnerability |
| Win32k Elevation of Privilege Vulnerability |
| Windows Installer Elevation of Privilege Vulnerability |
| Windows Update Medic Service Elevation of Privilege Vulnerability |
| Windows Common Log File System Driver Elevation of Privilege Vulnerability |
| Windows User Profile Service Elevation of Privilege Vulnerability |
| Windows Event Tracing Elevation of Privilege Vulnerability |
| <p>An elevation of privilege vulnerability exists because of overly permissive Access Control Lists (ACLs) on multiple system files, including the Security Accounts Manager (SAM) database. 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>An attacker must have the ability to execute code on a victim system to exploit this vulnerability.</p>
<p>After installing this security update, you <em>must</em> manually delete all shadow copies of system files, including the SAM database, to fully mitigate this vulnerabilty. <strong>Simply installing this security update will not fully mitigate this vulnerability.</strong> See <a href="https://support.microsoft.com/topic/1ceaa637-aaa3-4b58-a48b-baf72a2fa9e7">KB5005357- Delete Volume Shadow Copies</a>.</p>
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