CVE-2022-46699

What it actually does

Memory corruption in state management allows processing of malicious web content to achieve arbitrary code execution.

Why it matters to the business

Attackers could gain full control over affected devices used to view web content, risking data theft and system compromise; low urgency given no known exploitation in ransomware or KEV listings despite 1400+ days since publication and modest EPSS increase.

How an attack unfolds

An attacker crafts malicious web content that exploits a type confusion or state management flaw in the rendering engine; when a victim processes the content in a vulnerable application, memory corruption occurs leading to arbitrary code execution. Listed threat actors have been associated with similar Apple product issues.

How to fix it

Update affected products to fixed versions such as Safari 16.2, tvOS 16.2, macOS Ventura 13.1, iOS 16.2, iPadOS 16.2, watchOS 9.2 or the listed vim/vim GIT commit e1d720ee69755b7e74c41bbc8ba5af0a70d1fb5f where applicable.

How to confirm the fix worked

Confirm software versions match or exceed the fixed releases; test rendering of known proof-of-concept web content in isolated environments to verify absence of crash or code execution.

Typical attack path

1. Craft malicious web content targeting the memory corruption flaw
2. Host or deliver the content via web or messaging channels
3. Trick user into visiting or rendering the content in vulnerable software
4. Trigger corruption to achieve code execution and payload deployment

How to detect it

Review browser process crash logs and web content rendering artifacts for signs of memory corruption; correlate with threat actor patterns associated with Apple WebKit issues.

What your security team should do

• Prioritize patching web browsers and related Apple ecosystem products immediately
• Monitor EPSS trend and threat actor mentions for any increase in activity
• Apply least-privilege browsing policies and web content filtering as interim controls