Dangers on Safari

…well, not just Safari…

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First, how an unfortunate combination of CSS and HTML – the Safari Reaper attack – can crash iOS and/or macOS.

• Bleeping Computer: New CSS Attack Restarts an iPhone or Freezes a Mac – “A new attack has been discovered that will cause iOS to restart or respring and macOS to freeze simply by visiting a web page that contains certain CSS & HTML. Windows and Linux users are not affected by this bug.”
• John Leyden for The Register: Check out this link! It’s not like it’ll crash your iPhone or anything – “A few lines of code that Apple’s browser simply can’t handle”

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How an attack on Safari can expose you to malicious action such as phishing by spoofing a URL in the address bar:

• The Hacker News: Beware! Unpatched Safari Browser Hack Lets Attackers Spoof URLs – “…While Microsoft fixed the address bar URL spoofing vulnerability last month as part of its monthly security updates, Safari is still unpatched, potentially leaving Apple users vulnerable to phishing attacks…”
• Paul Ducklin for Sophos: Browser security hole on Macs and iPhones – just how bad is it? Sanity checking on the Edge/Safari story (Edge has now been patched) from a very experienced researcher.

David Harley