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MSRC compact vulnerability detail

CVE-2023-23392 · HTTP Protocol Stack Remote Code Execution Vulnerability

No description was published by MSRC.

Severity
Critical
Impact
Remote Code Execution
CVSS
9.8 base · 8.5 temporal
Release
2023-03-14
Signals
Windows HTTP Protocol Stack Remote Code Execution Exploited: No Publicly disclosed: No Exploitability: Exploitation More Likely
CWE
CWE-416: Use After Free
Patch Diff
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Resolved binary override
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Description
No description was published by MSRC.
FAQ / Articles
Mitigation
Mitigation refers to a setting, common configuration, or general best-practice, existing in a default state, that could reduce the severity of exploitation of a vulnerability. The following mitigating factors might be helpful in your situation: A prerequisite for a server to be vulnerable is that the binding has HTTP/3 enabled and the server uses buffered I/O. HTTP/3 support for services is a new feature of Windows Server 2022. Currently, enabling HTTP/3 is done via a registry key as discussed in this article: Enabling HTTP/3 support on Windows Server 2022
FAQ
How could an attacker exploit this vulnerability? In most situations, an unauthenticated attacker could send a specially crafted packet to a targeted server utilizing the HTTP Protocol Stack (http.sys) to process packets.