CVE-2019-8568 Path traversal in iOS

Medium 5.5 Published Updated

A local attacker can exploit symlink validation flaws to modify protected file system areas on Apple devices.

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-2019-8568?

CVE-2019-8568 is a medium-severity path traversal vulnerability in Apple Iphone Os, published on 18 Dec 2019. It can only be exploited from the same machine or local network, with no action from the victim.

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 iOS 12.3, macOS Mojave 10.14.5, tvOS 12.3, watchOS 5.2.1. A local user may be able to modify protected parts of the file system.

Weakness: CWE-59

Which versions are affected by CVE-2019-8568?

It affects 4 products.

Products include Apple Iphone Os, Apple Mac Os X, Apple Tvos, Apple Watchos.

How do I fix CVE-2019-8568?

No fix has been published for CVE-2019-8568 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-2019-8568 being exploited?

There is no known exploitation of CVE-2019-8568 in the wild and no public exploit code.

All Apple Iphone Os vulnerabilities

Sources

Also known as GHSA-q7gv-xfx9-7f68.

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