kr00k Secuity Issue

[bfmorgan]

Any word on a patch, firmware or otherwise for the new Kr00k security issue?

[B.Goode]

Any word on a patch, firmware or otherwise for the new Kr00k security issue?

Possibly a reference to this 6-month old vulnerability -
https://cve.mitre.org/cgi-bin/cvename.c ... 2019-15126



(Just expressing a preference for authoritative sources over sensational-sounding nicknames... )

[fruitoftheloom]

Any word on a patch, firmware or otherwise for the new Kr00k security issue?

Helps if you expanded your post with details, such as:

https://www.tomshardware.com/amp/news/k ... mitigation

https://amp.hothardware.com/news/kr00k- ... s-androids

[dickon]

It's annoying, but hardly a major problem.

If you're sending login credentials and / or secret key data over the air in the clear, relying on your network to protect you, you're Doing It Wrong (tm). Encrypt *everything* you care about at the application layer -- no exceptions.

If there's something slightly more interesting -- such as a remote exploit-the-wifi-controller bug in the firmware, which I remain firmly convinced is a: feasible and b: quite likely, given the complexities of these things -- then I'll care.

[bitsplice]

Here is a link that gives a bit more information about the exploit. https://www.welivesecurity.com/2020/02/ ... i-devices/ According to this site, only the Pi3 is affected.

[andrum99]

According to this site, only the Pi3 is affected.

It doesn't actually say that - just that Raspberry Pi 3 is affected. Apart from they fact whoever wrote the article thinks the device is called "Pi 3" and is produced by a company called "Raspberry", they don't specify which model of Pi 3 (3A+, 3B, 3B+), nor do they mention whether other models are affected.

[andrum99]

There's a firmware update in progress for the Pi - see https://github.com/RPi-Distro/firmware- ... 12d87e16e5.

No confirmation of whether or not the Pi 4B is vulnerable, but according to https://www.hackster.io/news/meet-the-n ... 9b4698c284 it uses the same wireless chip as the Pi 3B+, the CYW43455. The commit message linked above implies both the CYW43438 and CYW43455 are vulnerable to kr00k.

CYW43438 is used on the Pi Zero W, WH and Pi 3B
CYW43455 is used on the Pi 3B+, 3A+ and 4B

[andrum99]

The fix is now available via apt. The usual method will update your firmware packages:

Code: Select all

sudo apt update && sudo apt full-upgrade

Not sure if a reboot is required or not, so I would do one anyway just to be on the safe side