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Cracking the BlackBerry with a $100 Key

Hit Reply writes "Eweek is running the contents of a Symantec white paper that details how easy it is for a hacker to manipulate BlackBerry applications. Using a developer key that can be purchased by anyone for $100, an attacker can launch e-mail worms, SMS interception and backdoor attacks, and compromise the integrity of contacts, events and to-do items. The white paper has been yanked from Symantec's Web site." From the article: "Signed applications can send e-mail and read incoming e-mail. A malicious application could be used to allow third parties to send messages from the infected BlackBerry and also read all received messages. A malicious application could also use e-mail as a command and control channel to receive instructions to send and receive e-mails; send and receive SMS messages; add, delete and modify contacts and PIM data; read dialed phone numbers; initiate phone calls; and open TCP/IP connections."

22 of 94 comments (clear)

  1. Heh. by SatanicPuppy · · Score: 4, Insightful

    I see Symantec is still sensitive to the charge that they create worms, etc, to drum up business for themselves.

    Personally it doesn't bother me in the least that a security company is interested in, well, security. Having them actually detail vulnerabilities and produce papers like this would at least be a useful function for them.

    Of course, so would producing a worthwhile product that doesn't devour processor cycles, hog system resources, and create system instability upon removal.

    --
    ad logicam Claiming a proposition is false because it was presented as the conclusion of a fallacious argument.
    1. Re:Heh. by Anonymous Coward · · Score: 2, Informative
      "One thing that seems funny in all of this to me, someone that is going to crack your blackberry is going to legally buy the developer key? "

      Well, the article mentions that you could do this by getting an anonymous pre-paid credit card. Does anyone have further information on this? That sounds interesting....

      I googled for a couple, but, most seemed to be overseas 'banks' that have you send $250 or $1K or more to them, and they send you a working 'number'. I'm just a little hesitant to try something like that I'd not heard of before.

      Anyone have experience with things like that?

      Search for [CC Brand] Gift Card. For example, Amex Gift Cards ( http://www10.americanexpress.com/sif/cda/page/0,16 41,16130,00.asp )

      You can even pick them up at many stores
    2. Re:Heh. by gclef · · Score: 4, Informative

      I'm more amused by the fact that Symantec seems to think that repeating 4-month-old DefCon presentations and claiming them as thier own is somehow "newsworthy" or "dangerous."

  2. So what? by Jason+Pollock · · Score: 4, Insightful

    So you can get a signature really cheap. The device owner still has to install the application on their Blackberry.

  3. repeat 5x: by circletimessquare · · Score: 4, Funny

    how many crackberries could a cracker crack if a cracker could crack crackberries?

    --
    intellectual property law is philosophically incoherent. it is your moral duty to ignore it or sabotage it
  4. Wow major FUD by electrosoccertux · · Score: 3, Insightful

    I can send malicious emails and execute malicious programs in my friend's Linux box with a free "developer key". Just type "su" in the terminal and then enter this "developer key" (absolutely free) and its all yours.

    I should mention that yes, indeed, these situations are almost identical. A root password *can* be changed, to whatever you want, even without knowledge of what previous password was, quite easily.

    1. Re:Wow major FUD by Jeffrey+Baker · · Score: 5, Informative
      WTF are you talking about? A developer key does not give you "access to every blackberry out there." The key is used to sign your application, and then the Blackberry runtime will give your application access to protected APIs. The user (or IT department, depending on policy) must intentionally install your software. There's no way to accidentally install software on your Blackberry.

      Also it's not trivial to get additional keys. The Blackberry signing certificate program is managed by humans and they catch on pretty quickly. If you even use the signing keys from more than one computer, their signature server will become upset and you'll probably get a phone call from RIM operations.

  5. will it be used maliciously? by spoondisaster · · Score: 2, Funny

    It sounds like it could be possible stalker fodder, but I don't know how many people would find the information a Crackberry stores/sends/receives to be highly valuable. Sure, they could be malicious and run up someone's text messaging bill, but there are a lot funnier ways to piss people off, such as by putting gum on the scroller wheel.

    1. Re:will it be used maliciously? by blincoln · · Score: 2, Insightful

      I guess this is as good a place as any to ask - how did RIM ever sell the idea of having all corporate email and web traffic for Blackberries routed through their servers? I mean, it's overhead for most corporations to have the data routed to and from Canada, but it also gives RIM the ability to read all that confidential information - as if they themselves are the exact type of vulnerability this white paper discusses.

      I realize that they did it most likely to keep customers locked into paying for service, but the potential for abuse by rogue employees there is huge.

      --
      "...always new atoms but always doing the same dance, remembering what the dance was yesterday." -Richard Feynman
    2. Re:will it be used maliciously? by Ferzerp · · Score: 2, Informative

      Actually, the BES account needs Send As and Read/Write access to the mailboxes on Exchange. While it does have extensive access to the mailboxes, it needs no access to anything else. If you access secure internal websites, you must provide your domain credentials. If you use it for rdp, you must log in, etc.

      Properly configured, that account gives you access to every mailbox on the system, but nothing else. No worse than a mail admin account, and generally with a lot stronger password.

    3. Re:will it be used maliciously? by Nimloth · · Score: 3, Informative

      If you understand the concept of end-to-end encryption, you'll realize that data is encrypted from device to device. The Blackberry Enterprise Server has the encryption key, the RIM servers don't.

    4. Re:will it be used maliciously? by Curmudgeonlyoldbloke · · Score: 2, Interesting

      I guess this is as good a place as any to ask - how did RIM ever sell the idea of having all corporate email and web traffic for Blackberries routed through their servers? The alternative would be to work the way that MS Mobile 5 does and have the device in the field connect directly into the Exchange Server (or whatever) via an access mechanism that you maintain. That means that you have to do the work to "keep the bad guys out" rather than RIM. Which one is "better" will depend on your point of view, and what you want to use mobile devices for. Personally, the RIM model makes a lot of sense to me, as you're already trusting your data to "someone else's network" (the wireless carrier). It's a lot easier to implement a connection (always initiated outbound) from your company to RIM than it is to support 1000s of remote devices in the field connecting in to you. Also, as has already been said above, the "rogue employee at RIM" would have to crack the AES / 3DES encryption on the traffic as it went through their servers.

  6. In other news by Van+Cutter+Romney · · Score: 5, Funny

    In other news, NTP just sued Blackberry, citing that the vulnerability was actually patented by them.

    --
    Help a man when he is in trouble and he will remember you when he is in trouble again.
  7. Amazing! by cybereal · · Score: 2, Insightful

    It's amazing! An application installed to your phone can do things!

    Why is this even posted like it's some kind of new concept?

    If you install an application to your desktop machine, it can do all of those things. Why do you think the phone is any different? If you don't like the idea of malicious software then don't use a smartphone of any variety.

    In fact, this should be good news. A person has to go to the extra length of signing their application before it has this access. Of course, on my smartphone an application cannot be installed without my confirmation, regardless of signatures. Is this not the case with the blackberry? If so, shame on you RIM.

    --
    I read the script, and I think it would help my character's motivation if he was on fire. -Bender
  8. Huh? by Jeffrey+Baker · · Score: 5, Insightful

    This is a pretty stupid white paper. The whole point of the key is that you can easily tell which key is being used by the offending applications, and then revoke that key. And it costs the attacker $100 per attack. It's a good system which balances the needs of the network, the users, and developers.

  9. Re:But what if... by inotocracy · · Score: 4, Interesting

    I believe they already are, encryption keys are regenerated monthly on my blackberry, I always assumed that they were for this exact purpose.

  10. That's nothing! by raehl · · Score: 2, Funny

    I can crack a blackberry with a $4 hammer!

    I can do it for free with my fist, but that kinda hurts.

  11. Re:And just like all the other BlackBerry "exploit by Ferzerp · · Score: 2, Funny

    I've decided this news posting was just an elaborate ploy by Slashdot to identify the BES admins in the slashdot community :P

  12. Nobody's that stupid... by TheGrinningFool · · Score: 3, Funny

    ... I mean come on, nobody's stupid enough to install random software on their machine without knowing what it does. Oh, wait...

  13. No way! by 77Punker · · Score: 2, Interesting

    So if you execute code on a computer, it does what you tell it to do? Better watch out!

  14. Stock Tip: Symantec downgraded to Strong Sell by astrosmash · · Score: 2, Insightful

    First they come up with the hypothetical Mac "virus" that can hypothetically execute code if you manually download it and run it. And now it's the hypothetical BlackBerry malware that will hypothetically execute code if you manually download it and run it.

    What an absolutely pathetic attempt at marketing from the once grand antivirus company.

    --
    ENDUT! HOCH HECH!
  15. It's even harder to write a blackberry worm... by MishaGray · · Score: 4, Insightful

    I'm just a beginner bb developer, but I think it's even HARDER than is sounds to write Blackberry worm.

    Even if you DO write a program that reads/sends email or connects to the internet.
    And then pay the money and SIGN your malicious app--
    and then somehow get somebody to INSTALL it..

    Well on the BB releases I use - you will also get WARNINGS when you execute the program.
    When the program first tries to access your email folder - it will pop up a warning asking you "do you want to allow this program to acesss your email folder?"

    First time the application tries to open a TCP/IP connection to the outside world - same thing: "The application is attempting to open a conneciton to X.X.X.X - do you wish to allow it?". You can type "Allow" or "Deny" or "Allow always".

    So BE WARNED: A person can a malicous program, that is signed with his name on it (RIM takes your info before they give you the keys), which you MIGHT install and then you MIGHT accidentally give it access to your emails, and address book, and access to internet. If all those things happen - then it would be bad!