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 Back doors on some routers. Yours on the list?

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Posts : 9735
Join date : 2012-07-30
Age : 67
Location : Hoover, AL & Pensacola when I'm lucky

PostSubject: Back doors on some routers. Yours on the list?   Thu Jan 02, 2014 1:58 pm

Found this on Reddit.

Quote :
Some random code/data about the backdoor I found in my Linksys WAG200G (TCP/32764).

The backdoor may be present in other hardware, I'll update this readme accordingly Smile

Probable source of the backdoor:
- SerComm https://news.ycombinator.com/item?id=6998258 (nice finding Smile )

Backdoor confirmed in:
- Linksys WAG200G
- Netgear DM111Pv2 (https://twitter.com/eguaj/status/418143024019816448)
- Linksys WAG320N (http://zaufanatrzeciastrona.pl/post/smieszna-tylna-furtka-w-ruterach-linksysa-i-prawdopodobnie-netgeara/)
- Linksys WAG54G2 (https://twitter.com/_xistence/status/418616691040350208)
- DGN1000 Netgear N150 (https://github.com/elvanderb/TCP-32764/issues/3)
- Netgear DG834G V2 firmware 4.01.40 (thanks Burn2 Dev)
- Diamond DSL642WLG / SerComm IP806Gx v2 TI (https://news.ycombinator.com/item?id=6998682)

Backdoor may be present in:
- Netgear DG934 [probability: 99.99%] (http://codeinsecurity.wordpress.com/category/reverse-engineering/)
- Netgear DG834 (http://www.netgear-forum.com/forum/index.php?showtopic=6192)
- Netgear WPNT834 (http://forum1.netgear.com/showthread.php?p=270354)
- Netgear WG602, WGR614, DGN2000 (http://zaufanatrzeciastrona.pl/post/smieszna-tylna-furtka-w-ruterach-linksysa-i-prawdopodobnie-netgeara/)
- Linksys WAG120N, WAG160N, WRVS4400N (http://zaufanatrzeciastrona.pl/post/smieszna-tylna-furtka-w-ruterach-linksysa-i-prawdopodobnie-netgeara/)
- all SerComm manufactured devices (https://news.ycombinator.com/item?id=6998258)

Backdoor is not working in:
- Netgear WGR614v7 (thanks "Martin from germany" [your e-mail doesn't work])
- Netgear WNDR3700 (https://twitter.com/juliengrenier/status/418748575842304000)
- Netgear CG3100 (https://github.com/elvanderb/TCP-32764/issues/6)
- Netgear WGR614v9 (https://github.com/elvanderb/TCP-32764/issues/7)
- Linksys WRT54GS v1.52.8 build 001 (thanks Helmut Tessarek)

Some clarifications:
I didn't want to lose my time in writing a full report, it's a very simple backdoor that really doesn't deserve more than some crappy slides. Moreover, my English is quite bad

I had a lot of fun in writing / drawing those slides, all the necessary informations are in them, if people don't understand them or find them "too full of meme" then - well - it's too bad for them Smile

Ideas are funny little things, they won't work unless you do.
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