full-disclosure - WRT54G directory trasversial vulnerability

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Date: Fri Oct 14 18:40:33 2005
From: barrie at reboot-robot.net (Barrie Dempster)
Subject: WRT54G directory trasversial vulnerability

On Wed, 2005-10-12 at 16:36 -0400, Shell wrote:
> I just found a vulnerability in Linksys WRT54G routers.
> 
> http://192.168.1.1/apply.cgi?action=../
> 
> It loads the page after action
> 
> http://192.168.1.1/apply.cgi?action=../ returns the setup page
> http://192.168.1.1/apply.cgi?action=../blah returns that the file does not exist


Confirmed, however authentication is required. Still a vulnerability in
the system and worth patching though.

It's worth noting that there is alternative firmware available for this
device such as OpenWRT http://www.openwrt.org .

-- 
With Regards..
Barrie Dempster (zeedo) - Fortiter et Strenue

"He who hingeth aboot, geteth hee-haw" Victor - Still Game

blog:  http://reboot-robot.net
sites: http://www.bsrf.org.uk - http://www.security-forums.com
ca:    https://www.cacert.org/index.php?id=3
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