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Serious Vonage security/policy issue UPDATE

UPDATE

I just received my Vonage hardware, everything is up & running. Unfortunately the story gets worse - Vonage immediately begins reporting the ported number to third party carriers via caller ID. Yes, you can also make calls as the number you hijacked. The recieving party will have absolutely no clue where the call came from.

/UPDATE

I've discovered what I believe to be a relatively severe problem with Vonage. While it seems to be intentional on their part (their reps know about it), it essentially allows a Vonage user to hijack a phone number they have no rights to.

In short, Vonage begins internally routing calls to vonage hardware immediately after the port request (to transfer a phone number to Vonage) is placed - BEFORE they receive a letter of authorization (LOA) or a copy of your phone bill to verify that you have rights to the number. Vonage users then have absolutely no way to reach the correct recipient (on the current carrier), any calls made from their Vonage phone goes straight to the account that initiated the port request on that number. This allows anyone to intercept phone calls from Vonage users to a number of their choice, without the true number owner or the current carrier knowing anything.

Note that this only affects Vonage users, it does not affect routing from a normal carrier. If you are legitimately porting a number (as I was when I noticed the problem) Vonage users will not be able to call you. All calls placed to your number will ring on your Vonage equipment, regardless of the port status. Users on any other carrier will still be able to reach you as normal.

I have tested this on two numbers, my own cell phone number (that I intended to port) and a cell phone number provided to me by my employer. Less than 5 minutes from the time I placed the order all Vonage users trying to reach my company cell phone are directed to my Vonage line.

I've edited this for those of you with short attention spans. My full original post remains below.



So I signed up for Vonage two days ago. My intent is to port my current cell phone number to them to hold it, get a new number local to where I am right now (so I can share a family plan with the g/f), then port it back to T-Mobile whenever I return to Oregon.

As of tonight nobody with a Vonage phone can call my T-Mobile cell phone. I have not even returned the LOA (letter of authorization) for number portability.

I called them up, so far I am horrified.

I've been on the phone for 15 minutes arguing with them.

First complaint: Extremely unprofessional phone handling. She picked up the line without IDing herself or the company, just rustling sounds & then "Hello? Can you hold for a minute." She picked back up with "How can I help you?" Again, no company ID.

Second complaint: I've been on the phone for 15 minutes & she has yet to get any uniquely identifying info from me. Not even my name, let alone an account name or phone number.

Third complaint (service related): According to her when I requested the number port the change was effective immediately in the Vonage system. Anyone with a Vonage phone can ONLY call my vonage device (which has not yet arrived) whether they dial my virtual number (that vonage assigned) or my actual cell number. Their system will not route to my current provider even though they do not yet have a LOA to pull the line via WLNP. Their suggestions were to 1) forward calls to another number (which I don't have) or 2) Cancel the port request & re-initiate when my vonage hardware arrives. This allows people to call me, but only to a phone connected to the vonage hardware. So until the port process completes (they say 20 business days) nobody with a vonage phone can call me.

Currently waiting for a supervisor to tear into.

Now, the promised security flaw:

They start routing calls when the port request is received, prior to having the LOA + current phone bill. Does anyone else see the problem with this?

Let's say I want to intercept some phone calls to someone I don't like. Or even someone I do like, the motive doesn't matter. I submit a port request for their number, & don't bother to fill out the LOA or a copy of the current phone bill (which I obviously don't have). The actual number owner is none the wiser since Vonage can't contact the real provider without the LOA. Meanwhile I get all calls to that number from Vonage customers.

Nifty, eh?

I finally got my supervisor, they're going to "make an exception" & try to have calls to my cell phone routed outside the vonage network. As for the potential for number hijacking, she said (and I quote) "I believe there is a workaround for that."

Total time spent on the phone? 30 minutes.
Number of minutes before they got my account number? 23
Number of people I talked to: 2
Number of times I had to explain the problem? 5 (I think, 3 to the first tech + 2 to the supervisor)

Un freaking believable.

Should I just bail now, or should I continue to give them a chance?

Viper GTS
 
Well, you did give them a chance and they blowed it.

If services and security concern weight more than the convenience you get from VOIP service and the temporary number hoolding, I think you should bail out right then before any contract kick in.

 
Originally posted by: CheapArse
Also nifty, if your broadband access goes out, you can't call 911.

Don't really care about that, I'm using Vonage as a holding service.

I will have a fully active cell phone number (which has been my only phone for 3+ years).

I have no problems with the limitations of VOIP service, & I think people that don't consider those limitations are idiots. I would personally never use Vonage as my only phone, but if others want to that's OK by me so long as I don't have to hear them bitch when something goes wrong.

Viper GTS
 
Originally posted by: Viper GTS
Originally posted by: CheapArse
Also nifty, if your broadband access goes out, you can't call 911.

Don't really care about that, I'm using Vonage as a holding service.

I will have a fully active cell phone number (which has been my only phone for 3+ years).

Viper GTS

well la dee da, think of the poeple with vonage as their only phone eh? THINK OF THEM for god's sake.

oh my...im rambling again... 🙂

BED TIME 😉😛
 
VoIP is so nifty, I have a hard time reccomending that you give up so soon. I'd seriously reccomend testing your theory(find someone on the forums with a phone # that's willing to let you steal their number for this project), and if Vonage fails, document it, then flee the service. Otherwise, they're not entirely stupid, and it would probably be worth staying. Besides, if you do test it, you've got some good Slashdot material right there.🙂

PS Considering that your past job was in a call center, I find the commentary humorous. You're right, and that's what makes it so funny, since you're effecively pwning the agent on a subject most of us don't have right to pwn in 😛
 
I'm hijacking my work cell phone number.

Cost me $46.76 to run this little test, it better be worth it.

😀

Viper GTS
 
Originally posted by: Viper GTS
I'm hijacking my work cell phone number.

Cost me $46.76 to run this little test, it better be worth it.

😀

Viper GTS

Confirmed, I successfully hijacked my work cell phone number. Up & running in less than 5 minutes, already have a voicemail left for me.

Viper GTS
 
Hmm... I'm planning on using Vonage for my landline when I move to Denver (I'll also have a pair of cell phones, so it won't be my only line.) I guess this is one more thing to consider... Thanks VGTS.
 
I use Vonage as my one and only primary contact line. I'm happy with it. I have to get a UPS on the cablemodem, router and TA still, but I figure this - if the cable goes out around here (Orlando), so has the phone. Big deal.

Other than that, I cannot be more pleased with the service to date. Sure is a hell of a lot cheaper than Bell South.
 
I have Vonage and a mobile phone.

Vonage has been highly reliable. Though I had a short lived problem with slightly reduced sound quality due to server issues somewhere down the line.
 
Seems like Vonage is opening themselves up to hefty fines or worse if they're not bothering to authenticate routing requests.

 
Making international calls from vonage is a big pain in the neck for me.. I usually call United Arab Emirates and India and i always land up calling 2-3 times before i get through.. Even then, the quality isnt that great.... Not sure if i should switch to Packet8...... Anyone know if Packet8 is any better?


cheers
 
Originally posted by: Viper GTS
Originally posted by: Viper GTS
I'm hijacking my work cell phone number.

Cost me $46.76 to run this little test, it better be worth it.

😀

Viper GTS

Confirmed, I successfully hijacked my work cell phone number. Up & running in less than 5 minutes, already have a voicemail left for me.

Viper GTS
Run like Hell, they're morons.:Q
 
So are you going to just submit this thread to Slashdot, or are you going to do one of those fancy writeups that results in a webserver being brought to its knees?😉
 
Originally posted by: ViRGE
So are you going to just submit this thread to Slashdot, or are you going to do one of those fancy writeups that results in a webserver being brought to its knees?😉

I wrote it up (much more briefly, minus all the CS complaints) & submitted it.

Haven't heard anything yet.

When my vonage equipment arrives I'll test another situation, can I fake call origins using Vonage?

If I place a call from a number that I've "hijacked" to a number outside the vonage network, what does caller ID on the recipient phone show?

Viper GTS
 
Oooh... nice 😀

For what it's worth, I've made changes to accounts at SBC, Verizon, and GTE (before they became Verizon) without authentication.
 
Originally posted by: Viper GTS
Originally posted by: ViRGE
So are you going to just submit this thread to Slashdot, or are you going to do one of those fancy writeups that results in a webserver being brought to its knees?😉

I wrote it up (much more briefly, minus all the CS complaints) & submitted it.

Haven't heard anything yet.

When my vonage equipment arrives I'll test another situation, can I fake call origins using Vonage?

If I place a call from a number that I've "hijacked" to a number outside the vonage network, what does caller ID on the recipient phone show?

Viper GTS
Eh, I'm not sure I get you. Caller ID is name and phone number, but since you're having Vonage just transfer over your number, and I don't expect your name to change, wouldn't the CallerID info be the same no matter what?
 
Originally posted by: ViRGE
Originally posted by: Viper GTS
Originally posted by: ViRGE
So are you going to just submit this thread to Slashdot, or are you going to do one of those fancy writeups that results in a webserver being brought to its knees?😉

I wrote it up (much more briefly, minus all the CS complaints) & submitted it.

Haven't heard anything yet.

When my vonage equipment arrives I'll test another situation, can I fake call origins using Vonage?

If I place a call from a number that I've "hijacked" to a number outside the vonage network, what does caller ID on the recipient phone show?

Viper GTS
Eh, I'm not sure I get you. Caller ID is name and phone number, but since you're having Vonage just transfer over your number, and I don't expect your name to change, wouldn't the CallerID info be the same no matter what?

I'm not worried about my own, I'm curious as to what caller ID shows on a number that has not fully ported yet. I'm assuming (and hoping) that it shows the "virtual" number that Vonage assigns you until your port process is final.

Then again, I wouldn't have expected them to route calls for your real number until the port process completed...

Viper GTS
 
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