CVE-2017-11783 Privilege escalation in Windows

High 7.0 Published Updated

An attacker can exploit improper ALPC handling in Windows to elevate privileges to system level.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2017-11783?

CVE-2017-11783 is a high-severity vulnerability in Microsoft Windows 10, published on 13 Oct 2017. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Microsoft Windows 8.1, Windows Server 2012 R2, Windows RT 8.1, Windows 10 Gold, 1511, 1607, and 1703, and Windows Server 2016 allows an elevation of privilege vulnerability in the way it handles calls to Advanced Local Procedure Call (ALPC), aka "Windows Elevation of Privilege Vulnerability".

Which versions are affected by CVE-2017-11783?

It affects 5 products.

Products include Microsoft Windows 10, Microsoft Windows 8.1, Microsoft Windows Rt 8.1, Microsoft Windows Server 2012, Microsoft Windows Server 2016.

How do I fix CVE-2017-11783?

No fix has been published for CVE-2017-11783 yet. Limit exposure of the affected software until one is available.

Is CVE-2017-11783 being exploited?

There is no known exploitation of CVE-2017-11783 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

All Microsoft Windows 10 vulnerabilities

Sources

Also known as GHSA-wq5g-v6jv-g4cg.

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