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Home - Wireless Cracking - ZyXEL PLDTMyDSLBiz Routers - WPA Broken

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Admin / Owner
Status: Trusted
Joined: Tue, 05 Jul 2011
Posts: 3218
Team: HashKiller
Reputation: 7731 Reputation
Thu, 09 Jan 2014 @ 00:08:55

OK, so am here in the Philippines and I'm obviously doing my security rounds here Could not believe this when I saw it but in our office we have 4 wifi routers, all ZyXEL PLDTMyDSLBiz ones which use the default WPA key. After looking at the bottom, I noticed that they use the last 5 chars of the wifi MAC address at the end of the WPA key, which is totally retarded due to anyone being able to get the MAC address without even connecting.


MAC: 00:0D:52:C7:86:E0
Passwd: PLDTWIFI786E0

All WPA keys have PLDTWIFI prepended so only need to add last 5 chars of MAC address.

You don't even need to try in order to get on these types of routers. Owned! This was the case for all 4 routers.

Have fun If anyone has one of these in range, please try this

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Status: Trusted
Joined: Tue, 02 Aug 2011
Posts: 4598
Team: HashKiller
Reputation: 2982 Reputation
Thu, 09 Jan 2014 @ 13:48:20

Excellent discovery Blandy and well written out, thank you !!! Rep +10

I am amazed at this as I thought ZyXEL were one of the best routers to buy.

We really need to have a better way to display all these exploits on

Thanks again Blandy, nice to know you are still... err "testing" security wherever you are !!!

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Status: n/a
Joined: Sat, 06 Sep 2014
Posts: 11
Reputation: 0 Reputation
Tue, 09 Sep 2014 @ 13:19:56

hey Blandy and cia,

can you give us more details? I mean, how do you fingerprint those routers? Do you got a macaddress list for these routers?


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