Security News > 2022 > November > Successful Hack of Time-Triggered Ethernet

Time-triggered Ethernet is used in spacecraft, basically to use the same hardware to process traffic with different timing and criticality.

On Tuesday, researchers published findings that, for the first time, break TTE's isolation guarantees.

The result is PCspooF, an attack that allows a single non-critical device connected to a single plane to disrupt synchronization and communication between TTE devices on all planes.

The attack works by exploiting a vulnerability in the TTE protocol.

"Our evaluation shows that successful attacks are possible in seconds and that each successful attack can cause TTE devices to lose synchronization for up to a second and drop tens of TT messages-both of which can result in the failure of critical systems like aircraft or automobiles," the researchers wrote.

Much more detail in the article-and the research paper.

News URL

https://www.schneier.com/blog/archives/2022/11/successful-hack-of-time-triggered-ethernet.html