Reverse-engineering Broadcom wireless chipsets

Broadcom is one of the major vendors of wireless devices worldwide. Since these chips are so widespread they constitute a high value target to attackers and any vulnerability found in them should be considered to pose high risk. In this blog post I provide an account of my internship at Quarkslab which included obtaining, reversing and fuzzing the firmware, and finding a few new vulnerabilities.

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Defeating NotPetya from your iLO

NotPetya [0] is a variant of the Petya ransomware [1] that appeared in June 2017 in Ukraine. These malwares have the particularity to rewrite the MBR of computers that are still using an old fashioned BIOS-based booting system. This MBR encrypts the Master File Table (MFT) of the underlying NTFS partition systems.

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