CVE-2020-9858 Path traversal in Windows Migration Assistant

High 7.8 Published Updated

Running the installer in an untrusted directory allows arbitrary code execution due to dynamic library loading issues.

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

What is CVE-2020-9858?

CVE-2020-9858 is a high-severity path traversal vulnerability in Apple Windows Migration Assistant, published on 9 Jun 2020. 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

A dynamic library loading issue was addressed with improved path searching. This issue is fixed in Windows Migration Assistant 2.2.0.0 (v. 1A11). Running the installer in an untrusted directory may result in arbitrary code execution.

Weakness: CWE-427

Which versions are affected by CVE-2020-9858?

It affects 1 product.

Products include Apple Windows Migration Assistant.

How do I fix CVE-2020-9858?

No fix has been published for CVE-2020-9858 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-2020-9858 being exploited?

There is no known exploitation of CVE-2020-9858 in the wild and no public exploit code.

Sources

Also known as GHSA-8v24-3r89-xw58.

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