Summary
Impact: Security Feature Bypass. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.
Details
What kind of security feature could be bypassed by successfully exploiting this vulnerability?
An attacker who successfully exploited this vulnerability could execute RPC procedures that are restricted to privileged accounts, bypassing the access check for the RPC procedures.
How could an attacker exploit the vulnerability?
To exploit this vulnerability, an attacker could execute a specially crafted malicious script which executes an RPC call to a Windows SMB Witness Service.
Security updates
10.0.17763.4499 — https://support.microsoft.com/help/5027222
10.0.20348.1787 — https://support.microsoft.com/help/5027225
10.0.20348.1784 — https://support.microsoft.com/help/5027319
10.0.14393.5989 — https://support.microsoft.com/help/5027219
6.3.9600.21013 — https://support.microsoft.com/help/5027271
6.3.9600.21013 — https://support.microsoft.com/help/5027282
Vulnerabilities 1
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High 7.1
Windows SMB Witness Service Security Feature Bypass Vulnerability
Windows SMB Witness Service Security Feature Bypass Vulnerability
Revision history
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#1
Information published.
References
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CVE-2023-32021 Windows SMB Witness Service Security Feature Bypass Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-32021
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Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
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Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
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Common Vulnerability Scoring System
https://www.first.org/cvss