CVE-2020-9862

What it actually does

Command injection in Web Inspector due to insufficient escaping of URLs, allowing arbitrary command execution with user privileges on affected Apple platforms.

Why it matters to the business

Potential full device compromise on widely deployed Apple systems enabling data theft or persistence, though low exploit maturity reduces immediate operational disruption risk.

How an attack unfolds

An attacker crafts a malicious URL embedding shell commands; the victim loads it in Web Inspector and copies the URL, triggering unsanitized input that executes the payload locally.

How to fix it

Upgrade to iOS 13.6 / iPadOS 13.6, tvOS 13.4.8, watchOS 6.2.8, Safari 13.1.2, iTunes 12.10.8 for Windows, iCloud for Windows 11.3 or 7.20.

How to confirm the fix worked

Inspect installed version strings on each affected product against the fixed releases; confirm absence of vulnerable Web Inspector binaries.

Typical attack path

1. Craft URL containing command injection payload targeting Web Inspector escaping flaw
2. Social engineer victim into loading URL and opening Web Inspector
3. Victim copies URL from inspector interface
4. Injected commands execute under user context

How to detect it

Review process creation logs and command-line audit trails for unexpected shell activity immediately following Web Inspector usage on developer or test systems.

What your security team should do

• Apply listed updates to all Apple endpoints and browsers immediately
• Disable Web Inspector in production Safari profiles where feasible
• Add version checks to endpoint compliance scanning