‘Zero-Click’ MacOS Exploit Chain Uses Microsoft Office Macros

A new “zero-click” MacOS exploit chain could allow attackers to deliver malware to MacOS users using a Microsoft Office document with macros. The attack bypasses security measures that both Microsoft and Apple have put in place to protect MacOS users from malicious macros.

The exploit chain, revealed by Patrick Wardle, principal security researcher with Jamf, at Black Hat USA 2020, runs macros without an alert or prompt from the Microsoft Office application that prompts explicit user approval – meaning that when a user opens the document, the macro is automatically executed.

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Source: ThreatPost