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HildBeft Posted:
You can recollect
password by
connecting the
router to your pc
and open the

In The Forum:
Hard Wiring - Installation
How to arrive at wifi password?
On Oct 20, 2016 at 05:05:49

HildBeft Posted:
Great tips..
Thanks for sharing

In The Forum:
Hard Wiring - Installation
How to have Vonage and another land line?
On Oct 20, 2016 at 04:55:03

massrman Posted:
The devices are
available at
different price
margins , please
share your

In The Forum:
IP PBX for small business
On Sep 30, 2016 at 00:48:03

massrman Posted:
Hi these are most
commonly used SIP
PBX interops and

In The Forum:
IP PBX for small business
On Sep 30, 2016 at 00:37:45

Sammy00 Posted:
Has anyone setup a
W52p phone for
vonage? I have
a W52p with two
wireless handsets,

In The Forum:
Hard Wiring - Installation
W52p Setup
On Aug 30, 2016 at 10:38:01

James44 Posted:
Hi, I am
looking for a good
Sip Trunking
provider in
Canada. they
should offer

In The Forum:
A good sip trunking provider
On Jul 17, 2016 at 23:42:46

James44 Posted:
Which network
connection do you

In The Forum:
Wireless Access Point plugged into switch
On Jul 13, 2016 at 22:55:00

jjatsk Posted:
We are renting a
few offices right
next door to our
main building. I
have a wireless

In The Forum:
Wireless Access Point plugged into switch
On Jul 09, 2016 at 12:00:54

Pman Posted:
Hello, While
Vonage has been a
great service over
the years, it is
time to part

In The Forum:
LNP – Local Number Portability
Cannot port phone number to new carrier - repeated failures
On Jul 05, 2016 at 09:12:07

jbugz67 Posted:
We recently
purchased 5
Polycom VVX 300
phones from
Vonage, and have

In The Forum:
Nothing but problems with VVX300
On Apr 15, 2016 at 14:58:07

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Vonage What is a customer's risk? The highest risk comes to businesses who would

What is a customer's risk?

The highest risk comes to businesses who would be impacted by loss of incoming calls. An ordinary user on an unlimited plan may never notice that someone was placing outgoing calls unless they made international calls. Since calls to toll numbers (900, 976) aren't generally possible on Vonage systems the biggest threat is eliminated. 500 minute plan customers may be impacted if they and the hacker combined used more than 500 minutes.

So, in summation, the risk to the user is loss of incoming calls for the period the hacker's router is active, and the cost of toll calls (international calls) and the cost of calls above the 500 minute limit for limited plan users.

Phone impersonation

Another risk may come from someone who is attempting to impersonate you by using your phone. For example, if they stole a credit card from your mailbox but needed your phone to activate it, they could use this technique to place the call. This type of phone impersonation is more insidious than simple caller id spoofing because it would also provide the correct ANI information (used by toll free numbers to identify callers for example). However, the actual usefulness of this is limited. It is very simple to spoof calls to have your caller id through other mechanisms, so the need for this attack is extremely limited.

How could you be vulnerable?

A hacker could randomly attempt to spoof MAC addresses. It is likely that many of the Vonage addresses are in series so knowing a single MAC address would allow a hacker to simply add 1 to the number until he found an active line. Alternatively the hacker could go to the store and record numbers from packages and wait until the routers were activated. Finally, if the hacker knew your MAC address, which may be possible if he has access to your network, he could specifically target you.

Could this be fixed?

Linksys/Vonage could resolve this issue with a specific firmware upgrade. The could prevent the user from altering the MAC address sent by the router. A better solution would be to allow the user to specify a pass phrase (your Vonage account password perhaps) that was sent encrypted to the Vonage servers when your router attempted to download the configuration. This would prevent third parties without access to the pass phrase from cloning your device.

They could also allow you to lock your configuration file. Specifying that only updates could be received unless you permitted a one time download via the web site or a call to customer service. This would be required in the event of a factory reset for example.

What action can you take to protect yourself?

If you are a new user you could avoid this equipment. The news summary did not indicate the Motorola equipment was also vulnerable.

If you are an existing user with this equipment you could replace the equipment at your own cost. I seriously doubt either Vonage or Linksys would reimburse you. You could, I think, change the MAC address the device uses on your local network. I believe the Linksys devices allow you to spoof MAC addresses to fool cable modems. This spoofed MAC address is probably not used for your Vonage configuration. Therefore the MAC address visible on your LAN would be different than the one sent to Vonage. The one sent to Vonage could still be captured, but it would be harder. To make this effective you would want to use a real MAC address from a different Linksys router that was not on your network. This would still leave you open to a random attack, but less open to a targeted attack.

In my opinion this issue is not serious enough to warrant a consumer response in the majority of cases. It is a security flaw that Vonage should be concerned about. However, it is important to realize that credit card companies expect a certain level of identity theft, this is a detriment to credit card users who are affected by credit card theft. I would expect Vonage and Linksys to ignore this issue and simply expect a minimal level of fraud.

Read The Full Thread:

VoIP hijacking possibility

Partial excerpt from ABC news:
ahmagad... so Scary... wat can a custOmer do on their part? NADA? :( i
We've touched on the questionable choice Vonage/Linksys (actually Sipura/Motorola
Here is the abstract of Arias Hung's talk:
Other than the fact that this was talked about at Defcon, this really isn't news.
Ethereal and Cain require you to have access to the target's network. Ethereal
I was hoping to discuss this matter without posting a virtual "how-to-guide"
Therefore, the basic questions remain. If I have one of these Linksys devices
No need to alter the MAC, far more useful (if not as immediate) to get the config

scerruti posted "What is a customer's risk? The highest risk comes to businesses who would" on 08/06/2006

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HIGH SPEED INTERNET REQUIRED. †VALID FOR NEW LINES ONLY. RATES EXCLUDE INTERNET SERVICE, SURCHARGES, FEES AND TAXES. DEVICE MAY BE REFURBISHED. If you subscribe to plans with monthly minutes allotments, all call minutes placed from both from your home and registered ExtensionsTM phones will count toward your monthly minutes allotment. ExtensionsTM calls made from mobiles use airtime and may incur surcharges, depending on your mobile plan. Alarms, TTY and other systems may not be compatible. Vonage 911 service operates differently than traditional 911. See for details.

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