CVE-2022-22592

What it actually does

Logic flaw in state management allows processing of malicious web content to disable enforcement of Content Security Policy, resulting in integrity impact from unauthorized script execution or resource loading.

Why it matters to the business

Attackers can bypass web security controls on affected Apple devices and browsers, increasing risk of data compromise or unauthorized actions; low exploit prevalence and no known ransomware use reduce immediate urgency despite wide ecosystem reach.

How an attack unfolds

An attacker hosts or delivers malicious web content that triggers the state management issue; when rendered on vulnerable Safari, iOS, iPadOS, macOS, tvOS or watchOS, CSP rules are not applied, permitting script injection or policy bypass. Mentions of Interlock ransomware and WebKit issues in threat reporting indicate possible chaining attempts though no active campaigns are confirmed.

How to fix it

Upgrade to iOS 15.3 / iPadOS 15.3, watchOS 8.4, tvOS 15.3, Safari 15.3 or macOS Monterey 12.2 or later. Apply all subsequent security updates promptly.

How to confirm the fix worked

Confirm device and browser versions meet or exceed the listed fixed releases; re-test affected web content with CSP headers to verify policy enforcement.

Typical attack path

1. Deliver malicious web content via phishing, compromised site, or ad network
2. Victim loads content in affected Safari or WebKit-based browser on iOS, iPadOS, macOS, tvOS or watchOS
3. Logic issue prevents CSP enforcement
4. Attacker executes unauthorized scripts or loads disallowed resources

How to detect it

Review browser process logs, web content rendering artifacts, and network requests for unexpected script execution or resource loads that violate declared CSP; correlate with threat actor references to Interlock or WebKit activity.

What your security team should do

• Prioritize patching all managed Apple devices and Safari instances to the fixed versions
• Monitor EPSS and threat actor mentions for any change in exploitation activity
• Review web application CSP configurations as compensating control