full-disclosure - Senao SI-7800H VoIP wireless phone wdbrpc debug service UDP/17185

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Date: Mon Jan 16 23:13:02 2006
From: shawnmer at gmail.com (Shawn Merdinger)
Subject: Senao SI-7800H VoIP wireless phone wdbrpc debug
	service UDP/17185

I disclosed the following issue at ShmooCon 2006
<http://www.shmoocon.org/> during my "VoIP Wireless Phone Security
Analysis" presentation.

Thanks,
--scm

===============================================================

DATE:
16 January, 2006

VENDOR:
Senao

VENDOR NOTIFIED:
7 December, 2005

PRODUCT:
Senao SI-7800H VoIP 802.11b Wireless Phone
http://www.senao.com/english/product/product_wired_dsl_1.asp?pgtl=Wired&tp1id=03&tp2id=02&proid=000188
Firmware Version: 0.03.0001
BSP Version: V 2_2_1/33

VULNERABILITY TITLE:
Senao SI-7800H VoIP wireless phone wdbrpc debug service UDP/17185

DETAILS, IMPACT AND WORKAROUND:
An undocumented open port, UDP/17185, VxWorks WDB remote debugging
(wdbrpc) is left in from development. This open port may allow an
attacker unauthenticated access to the phone's OS, yield sensitive
information, create opportunities for DoS, etc.

There appears to be no workaround to disabling this undocumented open port.

CONTACT INFORMATION:
Shawn Merdinger
shawnmer@...il.com