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Review on the Less Traveled Road: 9 Years of Overlooked MikroTik Pre-Auth RCE

Ting-Yu 'NiNi' Chen

DEVCORE researcher NiNi Chen discloses a 9-year-old pre-authentication remote code execution zero-day in MikroTik RouterOS affecting over 3 million devices.

Summary

The Attack Surface of MikroTik RouterOS

MikroTik RouterOS powers over three million enterprise and ISP networking devices globally, making it a high-priority target for state-sponsored threat actors.

Analyzing IPC Mechanisms and the Nova Message Architecture

Ting-Yu Chen (NiNi) investigates the undocumented internal architecture of RouterOS, moving beyond standard Nova Message research into low-level socket callbacks and remote objects.

Discovering a 9-Year-Old Pre-Auth RCE Zero-Day

Uncovering an architectural race condition in lower-layer remote object management revealed a pre-authentication remote code execution flaw present in all active RouterOS releases since 2014.

Winning Master of Pwn and Tool Release

Chen reviews the Pwn2Own Toronto exploit implementation, releasing open-source reverse-engineering tooling to help the research community audit RouterOS systems.

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