CVE-2021-42297 Windows 10 Update Assistant Elevation of Privilege Vulnerability

Medium 5.0 Published Updated

An attacker can exploit a path traversal flaw in the Windows Update Assistant to escalate privileges on the system.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2021-42297?

CVE-2021-42297 is a medium-severity path traversal vulnerability in Microsoft Windows Update Assistant, published on 24 Nov 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

Windows 10 Update Assistant Elevation of Privilege Vulnerability

Weakness: CWE-59

Which versions are affected by CVE-2021-42297?

It affects 1 product.

Products include Microsoft Windows 10 Update Assistant.

How do I fix CVE-2021-42297?

No fix has been published for CVE-2021-42297 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2021-42297 being exploited?

There is no known exploitation of CVE-2021-42297 in the wild and no public exploit code.

Sources

Also known as GHSA-3jrq-x5vv-pvcw.

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