Recent notable achievements
Levente’s recent accomplishments include uncovering an algorithmic complexity attack on Open vSwitch, the de-facto standard for virtual switching in software-defined networks, prevalent in most private and public cloud infrastructures. He demonstrated that a carefully crafted, low-rate packet sequence could disrupt Open vSwitch’s internal data structures, effectively causing the switch instance to crash. The work has several sequels, all featured in publications and presented on the annual OVS+OVN conferences (from 2018-2020).
Additionally, Levente, along with his colleagues, made a breakthrough by identifying a time-agnostic replay attack on automotive Remote Keyless Entry (RKE) systems. Despite the use of rolling code technology, which should prevent the reuse of old signals, they discovered that specific sequences of outdated signals could trigger a rollback mechanism in certain car manufacturers' RKE systems. This mechanism resets the valid signal to an older one and, in some cases, unlocks the vehicle. This work has been presented at Black Hat USA 2022.