CVE-2019-8771 Security feature bypass in Safari

Medium 6.1 Published 27 Oct 2020 Updated 4 Aug 2024

Malicious web content can bypass iframe sandboxing policies in Safari and iOS, allowing attackers to circumvent security restrictions.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: Available

What is CVE-2019-8771?

CVE-2019-8771 is a medium-severity vulnerability in Apple Iphone Os, published on 27 Oct 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

This issue was addressed with improved iframe sandbox enforcement. This issue is fixed in Safari 13.0.1, iOS 13. Maliciously crafted web content may violate iframe sandboxing policy.

Weakness: CWE-1021

Which versions are affected by CVE-2019-8771?

It affects 2 products.

Products include Apple Iphone Os, Apple Safari.

How do I fix CVE-2019-8771?

Upgrade to a fixed version.

Is CVE-2019-8771 being exploited?

There is no known exploitation of CVE-2019-8771 in the wild and no public exploit code.

All Apple Iphone Os vulnerabilities

Sources

Also known as DEBIAN-CVE-2019-8771, GHSA-w6pm-jp6h-x3pq, UBUNTU-CVE-2019-8771.