Microsoft Disables Downloaded File Previews to Block NTLM Hash Leaks

Source: SecurityWeek | Added:

Microsoft has disabled file previews for downloaded files to prevent potential leaks of NTLM hashes, which could occur through HTML tags referencing external paths. This measure aims to enhance security and protect sensitive information during file handling.

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Impact: Not specified

In the Wild: Unknown

Age: Newly disclosed

Remediation: Disable file previews for downloaded files

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