exploit the possibilities
Home Files News &[SERVICES_TAB]About Contact Add New

WebWasherCONNECT.txt

WebWasherCONNECT.txt
Posted Jan 29, 2005
Authored by Oliver Karow | Site oliverkarow.de

WebWasher Classic has a design flaw weakness where the CONNECT method allows remote attackers to connect to any server listening on the localhost interface of the proxy server.

tags | exploit, remote
SHA-256 | 2a29f5edeac813ac66ecbdbee56a1015c23933d41ef1785125f74e1a02901cf6

WebWasherCONNECT.txt

Change Mirror Download
WebWasher Classic - HTTP CONNECT weakness
=========================================

WebWasher Classic
=================

WebWasher Classic is a well known HTTP-URL/Popup/Script filtering proxy
which
is free for non commercial use.
WebWasher Classic supports two modes, a client mode, where it only works for
the local machine (bound to localhost) and a server mode, where it serves as
a network proxy (bound to 0.0.0.0).


Weakness
========

If running in server mode, it is possible to connect from remote to tcp
ports
listening on 127.0.0.1 of the WebWasher system. This is an design flaw,
because CONNECT requests to localhost should be denied.
It also may be possible to bypass accesslists of firewalls, protecting the
WebWasher system.


Version
=======

WebWasher Classic v3.3 and v.2.2.1 on Windows platform.
Other platforms were not tested, but may also be affected.


Exploiting/PoC
==============


1) Start a netcat listener on the WebWasher system:
netcat -L -p 99 -s 127.0.0.1 < hallo.txt
2) Connect to the WebWasher proxy port (default 8080/tcp)
3) Enter command "CONNECT 127.0.0.1:99 HTTP/1.0"

As a result, content of hallo.txt will appear.


Vendor:
=======

http://www.webwasher.com
(Webwasher belongs to CyberGuard)


Discovered
==========
by oliver karow
http://www.oliverkarow.de/research/WebWasherCONNECT.txt


--
Sparen beginnt mit GMX DSL: http://www.gmx.net/de/go/dsl
Login or Register to add favorites

File Archive:

April 2024

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Apr 1st
    10 Files
  • 2
    Apr 2nd
    26 Files
  • 3
    Apr 3rd
    40 Files
  • 4
    Apr 4th
    6 Files
  • 5
    Apr 5th
    26 Files
  • 6
    Apr 6th
    0 Files
  • 7
    Apr 7th
    0 Files
  • 8
    Apr 8th
    22 Files
  • 9
    Apr 9th
    14 Files
  • 10
    Apr 10th
    10 Files
  • 11
    Apr 11th
    13 Files
  • 12
    Apr 12th
    14 Files
  • 13
    Apr 13th
    0 Files
  • 14
    Apr 14th
    0 Files
  • 15
    Apr 15th
    30 Files
  • 16
    Apr 16th
    10 Files
  • 17
    Apr 17th
    22 Files
  • 18
    Apr 18th
    45 Files
  • 19
    Apr 19th
    0 Files
  • 20
    Apr 20th
    0 Files
  • 21
    Apr 21st
    0 Files
  • 22
    Apr 22nd
    0 Files
  • 23
    Apr 23rd
    0 Files
  • 24
    Apr 24th
    0 Files
  • 25
    Apr 25th
    0 Files
  • 26
    Apr 26th
    0 Files
  • 27
    Apr 27th
    0 Files
  • 28
    Apr 28th
    0 Files
  • 29
    Apr 29th
    0 Files
  • 30
    Apr 30th
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2022 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close