Hackers are attacking Word users with new Microsoft Office zero-day vulnerability

This was one was discovered Friday by the folks over at McAfee. It does not rely on Macros to execute (that's some damn fine engineering). The bug affects all supported versions of Microsoft Word but will be fixed this week. We'll see.

Attackers are exploiting a previously undisclosed vulnerability in Microsoft Word, which security researchers say can be used to quietly install different kinds of malware -- even on fully-patched computers.

Unlike most document-related vulnerabilities, this zero-day bug that has yet to be patched doesn't rely on macros -- in which Office typically warns users of risks when opening macro-enabled files.

Instead, the vulnerability triggered when a victim opens a trick Word document, which downloads a malicious HTML application from a server, disguised to look like a Rich Text document file as a decoy. The HTML application meanwhile downloads and runs a malicious script that can be used to stealthily install malware.

Researchers at McAfee, who first reported the discovery on Friday, said because the HTML application is executable, the attacker can run code on the affected computer while evading memory-based mitigations designed to prevent these kinds of attacks. 

Read more - click here.

Last modified on Monday, 10 April 2017 12:04

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