WPA Keys can cause Router to reset to factory default

[walter harms]

Hi Chris,
i do not think this is a busybox problem.
It is obvious the "user-interface" to "configfile" code that is
not working correctly.

Busybox provides some basic tools e.g. a "vi" that allows you to
edit the configfile by hand.

i am afraid we can not help you, please contact the company responsible
for the router.

re,
 wh





Chris Rigg-Milner schrieb:
>  
> 
> Hi,
> 
>  
> 
> This problem has been annoying me for a couple of years now, so I finally
> got around to doing some investigation after installing an upgrade to my
> Belkin f5d7633uk router which uses Busybox V1.00.
> 
> I will admit that I am not 100% sure the problem is down to the busybox
> software but as I cannot get Belkin to do anything about it I am trying this
> so here goes anyway.
> 
>  
> 
> I have just installed f5d7633-4a_v1uk_1.00.25.bin a firmware upgrade for the
> router from F5D7633-4Av1_UK_1.00.17_AnnexA.bin which was itself an
> ineffectual fix for similar issues on the v10 release.
> 
>  
> 
> When I set up WPA security for wireless connections I like to use the
> www.grc.com/password generator to get a "63 random printable ASCII
> character" password.
> 
>  
> 
> THE PROBLEM:
> 
>  
> 
> Some characters cause major problems to the router/router software.
> 
> Specifically 2 main issues:
> 
> If a " (double quote) appears in the string (valid according to the spec for
> WPA Keys) this causes the key to become useless as the router saves the key
> in the config file as a double quote delimited string. Becoming useless in
> fact means that should you reload the config file it will truncate the key
> and therefore make a shorter string. In other words it changes the key and
> clients cannot logon as they have the correct Original key.
> 
> Now this one I feel is VERY SERIOUS.
> 
> Some characters that appear in the generated key cause the router to reset
> to what I assume is a factory default setting.
> 
> This happens when you make the changes on the admin panel supplied, in my
> case by Belkin.
> 
> When you save the changes to the security setting the router reboots, as I
> suppose one would expect. The result of that reboot does not give any
> indication of a problems but you now have a router with NO SECURITY AT ALL.
> The admin password is reset to "" (blank, nothing, nada). The wireless
> security is set to OFF, and  in many cases the ISP userid/password is lost
> and the router must be re-configured from scratch.
> 
> This leaves your router completely open to the universe, unless it is
> rendered useless by the loss of u/p to connect to the ISP.
> 
>  
> 
> Now this has happened to me using various WPA keys but this one is the last
> one that caused it to happen, obviously not my current key.
> 
> wpakey="c/S/4Sc`oLTM at r_\?rJa$~Lu82Tr!^IA HXPQD9\P2RpJvz(+<:Lzk^2A#x{^c4"
> 
>  
> 
> I had already removed any " (double quote) character and added something in
> its place but still, total mayhem on saving it to the router from the admin
> panel security page.
> 
>  
> 
>  
> 
> I hope this is not your problem and if not, please let me know and I will
> have another attempt at getting Belkin to fix the problem.
> 
> This is a great pity as the mix of their hardware and your software make a
> perfectly adequate package apart from this issue.
> 
>  
> 
>  
> 
> Regards
> 
> Chris Rigg-Milner
> 
>  
> 
> 
> 
> 
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