FBI's Smartphone Surveillance Tool Explained In Court Battle
concealment writes with news that a court battle has brought to light details on how the FBI's "stingray" surveillance tool works, and how they used it with Verizon's help to collect evidence about an alleged identity thief. Quoting:
"Air cards are devices that plug into a computer and use the wireless cellular networks of phone providers to connect the computer to the internet. The devices are not phones and therefore don’t have the ability to receive incoming calls, but in this case Rigmaiden asserts that Verizon reconfigured his air card to respond to surreptitious voice calls from a landline controlled by the FBI. The FBI calls, which contacted the air card silently in the background, operated as pings to force the air card into revealing its location. In order to do this, Verizon reprogrammed the device so that when an incoming voice call arrived, the card would disconnect from any legitimate cell tower to which it was already connected, and send real-time cell-site location data to Verizon, which forwarded the data to the FBI. This allowed the FBI to position its stingray in the neighborhood where Rigmaiden resided. The stingray then "broadcast a very strong signal" to force the air card into connecting to it, instead of reconnecting to a legitimate cell tower, so that agents could then triangulate signals coming from the air card and zoom-in on Rigmaiden’s location. To make sure the air card connected to the FBI’s simulator, Rigmaiden says that Verizon altered his air card’s Preferred Roaming List so that it would accept the FBI’s stingray as a legitimate cell site and not a rogue site, and also changed a data table on the air card designating the priority of cell sites so that the FBI’s fake site was at the top of the list."
Chris Paget was able to demo similar behavior at DEFCON 18, and he sure didn't need Verizon's help to do so.
Pretty sure the FCC wanted to bust him on stage, actually.
John
This is basically a supply chain attack. People worry about others breaking into their devices, but the user has to trust the device supplier not to tamper with it before they receive it. This situation is analogous to your PC phoning home to Microsoft for updates, then having a special version sent to your machine at the request of the FBI. No matter how careful you are about what software you run or what security software you employ, Microsoft can compromise your machine.
Issuing a custom radio firmware for a data only device, so that it responds to a telephone network signal demonstrates that verizon is willing to place nonstandard firmware on devices on their network, for the express purposes of aiding investigations that lack proper warrants.
This is a very bad thing Verizon. A Very Bad Thing.
Don't underestimate the impact that losing public confidence can have on your business. Being so self-conceited as to feel that you don't have to worry because you have cornered the market would only add fuel to the fire.
Plan you PR damage control messages carefully. Smile, you're on candid camera.
Is this even legal? Did they have warrants for this? Did they take any precautions to make sure other people weren't pulled into this?
When telecom companies are re-programming such things to serve law enforcement, I should hope there's some actual legal oversight instead of "because we need to".
I'd like to see some clear rulings which define how they can and can't use this stuff, because they seem to just go ahead and do it without caring much for the legalities.
Lost at C:>. Found at C.
If the FBI's looking for you and gets the proper documentation, then everything's fine. You only worry if you have something to hide.
Clearly our technological advances are ahead of the law and it's time for those 2 to sync up in a realistic way.
Ok, so this is a guy who does identity fraud.
I'm not crying for him
He's lucky to even have access to due process as far as I'm concerned However, that your very own devices can be used against you in such ways, which means that the trust you have in your provider is broken, seems unethical.
If the FBI and/or other agencies require such abilities, perhaps then, companies such as Verizon should place this in their contracts something like "authorities can use your devices to track you and/or use your data for any of their investigations as they see fit".
Transparency would be nice.
All I know is that, I've got nothing to hide, so I don't care, but, for those who do, they may have to switch to another provider....
In case you want to look it up.
The described scenario is technically accurate. I see no reason to doubt that this is exactly what happened. The only possible exception is the 'reprogramming of the aircard'. It is my assumption that this is the default behavior of aircards and that no reprogramming was/is necessary. A trojaned PRL is likely IMO.
"When they came for the scumbags, I did not speak out, for I was not a scumbag..."
If the FBI's looking for you and gets the proper documentation, then it is legal. full stop
Whether things are fine, or whether you do or don't have something you would like to hide, it becomes irrelevant to the discussion.
Is it just my observation, or are there way too many stupid people in the world?
Rookie move, he deserved to be caught! Everyone knows compare your tables to non-criminals tables. DUH
All you need is openBTS and a USRP. Total investment could be under $500.
HOWEVER... Since you would be operating an unlicensed radio on a licensed spectrum, as well as intercepting/hijacking other people's cell calls you will be breaking many laws including operating without a license, illegal intercept, wire fraud...
You, unlike the FBI, will not have a get out of jail free card. You will rot in jail! But, the tools are readily available to the public and te barrier to entry is surprisingly low.
1) connect CDMA card to embedded PC board acting as router, with WIFI to bridge.
2) connect camera to rig, stream video over wifi to user end point
3) hide device in an unused area or room that has no connection (evidence wise) to you whatsoever
4) when FBI tactical sigint nazis home in on your celluar devices signal, they think they "HAVE YOUR ASS", and SWAT team busts through the door. Unfortunately for them, there's nobody to bust, but there IS a nice camera streaming the hilarity to you, which you record.
5) upload hilarious footage of dumbfounded, pissed off nazi SWAT team ot internet
6)?????
7) hilarity and profit ensues
I had a dream that happened
... 'scuse me, but I see "unauthorized access to a computing system" and "theft of service" all over here. A badge should not be a free pass to commit crimes.
The fibbies might well have a warrent that would allow searching the machine, and a different one that would allow monitoring electronic conversations. But that is not the same as planting malware that creates transmissions. Not that the FBI transgressions are likely to be presented to a Grand Jury.
The interesting thing is this is a criminal trial where illegally obtained evidence and all results thereof can be excluded "fruit of the poisoned vine". So watch the admissibility rulings ...
It never connects to the strongest signal.
Maybe I am naive and everyone knows this already but the the government monitors bank accounts.
I opened a joint bank account for my grandson two months ago. He does not have a SS number yet. I noticed some transactions of a few cents in the account. My credit union told me these are transactions against the account from the federal givernment to verify the account because it does not have a SS attached to it. Once I send in the signed paperwork, the transactions should stop. What the hell are they doing? My wife is always saying "if you have nothing to hide why should you worry". She finally changed her mind after seeing this. Of course she blames it on Obama but at least shes looking now.
...aren't also targets for reprogramming and surveillance.
The boulder county sheriffs department likes to reprogram the PRL of jail visitors as described in TFA after using adb to break into phones and copy off /data /sdcard and /sd-ext. Make sure to *228 or use cdma field test -> map tower. I only noticed because of the crappy service...I wonder how many people are being snooped without warrant in Boulder CO
Thats one way to do it.
Um all sorts of AirCards, USB 3G dongles, etc can be made to make and recieve calls.
All the Huwaei 3G usb modems that are sold by telco's here in Aus/NZ i've managed to get to make and recieve calls. (Yeah you need to use a USB headset or something, but you already do for skype and voip.)
Is there any point to it? I don't know, but you can.
Just like most tablets can be made to make/receive phone calls even though they aren't considered phones by the law.
You can tell how powerful someone is by the magnitude of the crime they can commit and be able to get away with.
The FBI bribed a *BSD developer to insert a back door back around 2000. One of several reasons I rank them lower than the Russian Mafia on my scale of infamous criminal organizations. (The Russians rank better because they at least admit what they are)
Considering the FBI's policies under Hoover, merely skirting the law would actually be an improvement.
Did nobody in this thread read about this when it was posted on Slashdot a week or two ago? Everybody is wondering about whether or not they got a warrant, etc. and that was all thoroughly covered last time. The FBI claimed this was covered under an order telling Verizon to provide technical assistance locating the card. The judge who signed that order is pissed, saying it did NOT authorize the FBI to do ANYTHING, and especially it did not authorize them to use a Stingray. The judge's colleagues agree, and are pissed that the FBI was pulling this crap.
So no need for Slashdotters to wonder whether or not the order allowed the Stingray - the very judge who issued the order says it certainly does not. The FBI has since sent a memo to their agents saying the same thing, that a Stingray requires an order that specifically mentions a Stingray, not a "technical assistance" order.
Wired is reporting that Verizon "reprogrammed" the card. People usually use "reflash" when they modify program in cellphones. "Reprogram" likely means they modified the equivalent of SIM card in GSM/UMTS/LTE, which stores subscriber information. CDMA devices usually don't have any SIM card slot (it can have one though) because it's integrated into the phone, but these ROMs are separate from firmware ROMs. My guess is that they just enabled voice call on his VZW account, modified the PRL so his card will accept the fake tower, and "reprogrammed" his service over-the-air. No need to mess around with proprietary RTOS on modem.
FBI guys would tap into gateway servers at Verizon to get coarse location, start the rogue cell tower there, make a phone call to the card(CDMA can't do simultaneous voice and data so receiving a call will terminate the data session), and wait for it to reconnect to nearest tower on top of the PRL, which is that rogue tower.
It may be possible for MNOs to reflash rogue firmware over-the-air, but they likely don't. Even qualified full-time embedded engineers at Apple can't properly patch a lockscreen bypass - seriously.