CVE-2019-8834 Security feature bypass in iOS and iPadOS
An attacker in a privileged network position can bypass HSTS for specific domains, potentially enabling man-in-the-middle attacks on Apple operating systems.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-8834?
CVE-2019-8834 is a medium-severity vulnerability in Apple Icloud, published on 27 Oct 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A configuration issue was addressed with additional restrictions. This issue is fixed in tvOS 13.3, watchOS 6.1.1, iCloud for Windows 10.9, macOS Catalina 10.15.2, Security Update 2019-002 Mojave, and Security Update 2019-007 High Sierra, iOS 13.3 and iPadOS 13.3, iTunes 12.10.3 for Windows, iCloud for Windows 7.16. An attacker in a privileged network position may be able to bypass HSTS for a limited number of specific top-level domains previously not in the HSTS preload list.
Which versions are affected by CVE-2019-8834?
It affects 7 products.
Products include Apple Icloud, Apple Ipados, Apple Iphone Os, Apple Itunes, Apple Mac Os X, Apple Tvos and 1 more.
How do I fix CVE-2019-8834?
No fix has been published for CVE-2019-8834 yet. Limit exposure of the affected software until one is available.
Is CVE-2019-8834 being exploited?
There is no known exploitation of CVE-2019-8834 in the wild and no public exploit code.
Other vulnerabilities in Apple Icloud
Sources
Also known as GHSA-8g54-57wc-xjfh.