CVE-2019-6238 Path traversal in macOS

High 7.8 Published Updated

Attackers can execute arbitrary code by exploiting symlink validation flaws in macOS package processing.

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-2019-6238?

CVE-2019-6238 is a high-severity path traversal vulnerability in Apple Mac Os X, published on 27 Oct 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 validation issue existed in the handling of symlinks. This issue was addressed with improved validation of symlinks. This issue is fixed in macOS Mojave 10.14.4, Security Update 2019-002 High Sierra, Security Update 2019-002 Sierra. Processing a maliciously crafted package may lead to arbitrary code execution.

Weakness: CWE-20

Which versions are affected by CVE-2019-6238?

It affects 1 product.

Products include Apple Mac Os X.

How do I fix CVE-2019-6238?

No fix has been published for CVE-2019-6238 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-2019-6238 being exploited?

There is no known exploitation of CVE-2019-6238 in the wild and no public exploit code.

All Apple Mac Os X vulnerabilities

Sources

Also known as GHSA-jjgx-27h5-9gq6.

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