On Monday a research paper released that discussed how an attacker could compromise the WPA2 wireless encryption mechanism. This vulnerability has been dubbed Key Reinstallation Attack (KRACK), aka Krack Attack. While this attack is especially effective against Linux and Android client devices, the paper goes on to describe that any device using the standard WPA2 wireless security is vulnerable and should be patched.
This is a dangerous vulnerability. In its current state, it is very difficult to execute and needs to have a very close physical presence to the wireless network being compromised. That being said, once code is released for this vulnerability, it’s only a matter of time before exploiting it becomes easier.