bfmorgan
Posts: 2
Joined: Wed May 29, 2013 4:54 pm

kr00k Secuity Issue

Wed Feb 26, 2020 6:26 pm

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

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B.Goode
Posts: 10356
Joined: Mon Sep 01, 2014 4:03 pm
Location: UK

Re: kr00k Secuity Issue

Wed Feb 26, 2020 6:37 pm

bfmorgan wrote:
Wed Feb 26, 2020 6:26 pm
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
Posts: 23373
Joined: Tue Mar 25, 2014 12:40 pm
Location: Delightful Dorset

Re: kr00k Secuity Issue

Wed Feb 26, 2020 7:19 pm

bfmorgan wrote:
Wed Feb 26, 2020 6:26 pm
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
Rather than negativity think outside the box !
RPi 4B 4GB (SSD Boot)..
Asus ChromeBox 3 Celeron is my other computer...

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dickon
Posts: 1543
Joined: Sun Dec 09, 2012 3:54 pm
Location: Home, just outside Reading

Re: kr00k Secuity Issue

Wed Feb 26, 2020 10:35 pm

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
Posts: 1
Joined: Thu Feb 27, 2020 2:05 pm

Re: kr00k Secuity Issue

Thu Feb 27, 2020 2:25 pm

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
Posts: 1220
Joined: Fri Jul 20, 2012 2:41 pm

Re: kr00k Secuity Issue

Thu Feb 27, 2020 11:58 pm

bitsplice wrote:
Thu Feb 27, 2020 2:25 pm
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
Posts: 1220
Joined: Fri Jul 20, 2012 2:41 pm

Re: kr00k Secuity Issue

Sat Mar 07, 2020 1:07 am

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
Posts: 1220
Joined: Fri Jul 20, 2012 2:41 pm

Re: kr00k Secuity Issue

Tue Mar 10, 2020 12:23 pm

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 :)

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