CVE-2019-8649 Cross-site scripting in Safari
Processing maliciously crafted web content may lead to universal cross site scripting in Apple Safari and related components.
- 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-2019-8649?
CVE-2019-8649 is a medium-severity cross-site scripting vulnerability in Apple Icloud, published on 18 Dec 2019. 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
A logic issue existed in the handling of synchronous page loads. This issue was addressed with improved state management. This issue is fixed in iOS 12.4, macOS Mojave 10.14.6, tvOS 12.4, Safari 12.1.2, iTunes for Windows 12.9.6, iCloud for Windows 7.13, iCloud for Windows 10.6. Processing maliciously crafted web content may lead to universal cross site scripting.
Weakness: CWE-79
Which versions are affected by CVE-2019-8649?
It affects 6 products.
Products include Apple Icloud, Apple Iphone Os, Apple Itunes, Apple Mac Os X, Apple Safari, Apple Tvos.
How do I fix CVE-2019-8649?
Upgrade to a fixed version.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2019-8649 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-8649 exists.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in Apple Icloud
Sources
Also known as DEBIAN-CVE-2019-8649, GHSA-96w8-j89g-2wmv, UBUNTU-CVE-2019-8649.