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CVE-2022-21989 - Security Update Guide - Microsoft - Windows Kernel Elevation of...
source link: https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2022-21989
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Windows Kernel Elevation of Privilege Vulnerability
CVE-2022-21989Released: Feb 8, 2022
Assigning CNA:
Microsoft
CVSS:3.1 7.8 / 7.0
Metric
Value
Base score metrics(8)
Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Temporal score metrics(3)
Exploit Code Maturity
Proof-of-Concept
Remediation Level
Official Fix
Report Confidence
Confirmed
Please see Common Vulnerability Scoring System for more information on the definition of these metrics.
Exploitability
The following table provides an exploitability assessment for this vulnerability at the time of original publication.
Publicly Disclosed
Exploited
Exploitability Assessment
Exploitation More Likely
Why is Attack Complexity marked as High for this vulnerability?
Successful exploitation of this vulnerability requires an attacker to take additional actions prior to exploitation to prepare the target environment.
What is meant by scope change for this particular vulnerability?
In this case, a successful attack could be performed from a low privilege AppContainer. The attacker could elevate their privileges and execute code or access resources at a higher integrity level than that of the AppContainer execution environment.
Acknowledgements
- Anonymous
Security Updates
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle.
Disclaimer
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Revisions
Version
Revision Date
Description
Feb 8, 2022
Information published.
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