CVE-2019-8531 Security feature bypass in iOS

Critical 9.8 Published 27 Oct 2020 Updated 4 Aug 2024

An attacker can bypass certificate validation to trust untrusted RADIUS server certificates, compromising network security on Apple devices.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2019-8531?

CVE-2019-8531 is a critical vulnerability in Apple Iphone Os, published on 27 Oct 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A validation issue existed in Trust Anchor Management. This issue was addressed with improved validation. This issue is fixed in watchOS 5.2, macOS Mojave 10.14.4, Security Update 2019-002 High Sierra, Security Update 2019-002 Sierra, iOS 12.2. An untrusted radius server certificate may be trusted.

Weakness: CWE-295

Which versions are affected by CVE-2019-8531?

It affects 3 products.

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

How do I fix CVE-2019-8531?

No fix has been published for CVE-2019-8531 yet. Limit exposure of the affected software until one is available.

Is CVE-2019-8531 being exploited?

There is no known exploitation of CVE-2019-8531 in the wild and no public exploit code.

All Apple Iphone Os vulnerabilities

Sources

Also known as GHSA-9ppf-4955-jx6m.