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Cover image for Node2Shell: Node.js Brotli Remote Code Execution Vulnerability

Node2Shell: Node.js Brotli Remote Code Execution Vulnerability

A high-severity out-of-bounds write vulnerability in the Node.js Brotli decoder (Node2Shell) allows remote code execution when processing malformed compressed data.

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Tim Peck@timpeck15 hours ago

9 intel reports

The CSuite operation targets US and European organizations using sophisticated phishing lures to steal Microsoft 365 sessions and deploy legitimate RMM tools like ScreenConnect for persistent endpoint access.

Attackers are abusing the OAuth 2.0 device authorization grant to trick users into authenticating malicious sessions on legitimate Microsoft sign-in pages, bypassing MFA.