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Researchers Find Big Leaks In Pre-installed Android Apps

An anonymous reader sends this quote from an article at Ars Technica: "Researchers at North Carolina State University have uncovered a variety of vulnerabilities in the standard configurations of popular Android smartphones from Motorola, HTC, and Samsung, finding that they don't properly protect privileged permissions from untrusted applications (PDF). In a paper just published by researchers Michael Grace, Yajin Zhou, Zhi Wang, and Xuxian Jiang, the four outlined how the vulnerabilities could be used by an untrusted application to send SMS messages, record conversations, or even wipe all user data from the handset without needing the user's permission. The researchers evaluated the security of eight phones: the HTC Legend, EVO 4G, and Wildfire S; the Motorola Droid and Droid X; the Samsung Epic 4G; and the Google Nexus One and Nexus S. While the reference implementations of Android used on Google's handsets had relatively minor security issues, the researchers were 'surprised to find out these stock phone images [on the devices tested] do not properly enforce [Android's] permission-based security model.' The team shared the results with Google and handset vendors, and have received confirmation of the vulnerabilities from Google and Motorola. However, the researchers have 'experienced major difficulties' in trying to report issues to HTC and Samsung."

12 of 136 comments (clear)

  1. Cyanogenmod by Skarecrow77 · · Score: 5, Insightful

    What does it say when I trust a bunch of random coders on the internet to give me a better performing, more secure, and overall more pleasing experience with my smartphone than the company that created it.

    1. Re:Cyanogenmod by NatasRevol · · Score: 5, Funny

      That they stood on the shoulders of giants, and combed their hair?

      --
      There are two types of people in the world: Those who crave closure
    2. Re:Cyanogenmod by iluvcapra · · Score: 4, Interesting

      People who own and use phones have a greater incentive to make a good phone OS than people who sell and provide service to phones.

      --
      Don't blame me, I voted for Baltar.
    3. Re:Cyanogenmod by clarkn0va · · Score: 4, Insightful

      You're right, and what a sad statement that is on the current state of affairs when a group of companies can treat their consumer base with something between indifference and contempt and yet continue to profit from them.

      --
      I am literally 3000 tokens away from the chaotic crossbow --Stephen
  2. Re:facepalm by TheRealMindChild · · Score: 5, Insightful

    You say this, like something complex is doomed to be incomprehensible to do correctly. Simple fact of the matter is, these silly folks are still using strlen(...) and ridiculously bad coding practices, known for decades, all to come in under deadlines. I see WAY too often a multi-tier database application, where security is implemented by constantly querying what rights the user has from a "Users" table. They implement security with a bunch of 'if/switch' statements and claim "it's the nature of complex software!" when a security vulnerability is found, rather than putting security on the database.

    --

    "When life gives you lemons, don't make lemonade. Make life take the lemons back!" -- Cave Johnson
  3. But Let's Vote Using Smartphones by mtrachtenberg · · Score: 4, Insightful

    I hope all of the people thinking it would be very cool and convenient to vote via smart phones (or the internet, or the telephone, or the mail system) will notice that smart phones might not yet be perfect.

    Voting is a classic example of a situation where the requirements cry out for appropriate technology.

    The requirements are unique: you must not be able to prove how you voted, you must not be able to sell your vote or be coerced by anyone, you should be able to have complete confidence that your vote was counted properly along with everyone else's.

    The technology that is required is completely straightforward -- people have to go to protected locations, create physically countable and non-traceable artifacts that represent their uncoerced opinions, deposit these artifacts into a locked box at the location, and know that the contents of the locked box are properly reflected in the results.

    The best way to accomplish the last step is to count the contents in public before the contents are moved, and to generate and digitally sign images of the artifacts so that anyone who wants to confirm your count is an accurate representation of the contents is able to do that.

    All attempts to modernize voting for convenience's sake are misguided. All opinions that making a simple approach more complex to speed up the distribution of results are misguided. Something that is convenient but cannot be checked is not appropriate for voting. And any time a computer scientist tells you how secure something is, introduce them to real people and the way they protect their passwords.

    1. Re:But Let's Vote Using Smartphones by elsurexiste · · Score: 4, Interesting

      Let's be honest: the average man can't audit anything. In the end, it's more about trust than technology.

      Can I trust that no one will fold the ballot in a certain, unique way that would allow someone to tell it apart? Can I trust that no one will add a doodle that will equally provide a "signature"? If I can't, then I must admit there are ways to prove how someone voted.

      Can I trust that no one will use the signatures describe above to identify a voter and pay/coerce? Can I trust that everyone will uphold the secrecy? If I can't, then I must admit that votes may be up for sale or manipulation.

      Can I trust that no one will miscount? Can I trust that the people counting are impartial and not subject to coercion? Can I trust that, even if I'll never be present at the counting and audit the system myself, it will be carried out perfectly? If I can't, then I must admit that the whole counting thing will eventually be rigged.

      There's only one reason an average man on the street trusts the system (if he does): it's familiar. Just like his trust on https, credit cards, or the expiration date of his food. Regulations for voting give trust to Average Joes and Janes because they are familiar with those measures and can somewhat understand how are they supposed to prevent rigging, not because they are effective (this is true for a lot of situations, TSA comes to mind). If people trust electronic voting systems, then they'll become the appropriate technology.

      I'm sick and tired of hearing "You can't be 100% sure of X with electronic voting systems! The whole system is crap!" or "Aha! The 7th step in your chain of validations can be manipulated! The whole system is crap!". Well, it isn't. Look at elections worldwide: they are done in P&P, yet everyone says they are rigged, regardless of international (and supposedly impartial) auditing. Regardless of analysis. Just because people don't have trust in it.

      We can't, therefore, judge a voting system just on how inexpugnable they are: the only thing we can do is put enough checks and barriers to make it really hard to break the main requirements, we do enough information campaigns to explain in layman terms what's going on, and we friggin' trust on the outcome. We are losing some great stuff (i.e. precision and accuracy) just because we demand things we never had and never will.

      Now, let the /. crowd proceed to mod me down. But before that, my ad hominem. Your comment is group-think at its finest. Only a few people bring nice arguments to the /. table nowadays; the rest just repeats whatever the consensus is and are happy to maintain the status quo. Use your friggin' brain and don't follow the herd.

      --
      I rarely respond to comments. Also, don't ask for clarifications: a brain and Google are faster, believe me!
  4. Re:facepalm by The+Moof · · Score: 4, Insightful

    Yea, sure bugs exist. But when you force this software on your customers, and restrict their ability to remove the software, you better make damn sure that software's secure.

  5. Re:facepalm by MozeeToby · · Score: 5, Insightful

    Nope. This complex software (Android) has a surprisingly good security model. Carriers are installing software which ignores permissions, is not removable by the user, and creates new, serious security issues. The carriers are being evil and/or incompetent.

  6. HTC and Samsung by ThatsNotPudding · · Score: 5, Funny

    However, the researchers have 'experienced major difficulties' in trying to report issues to HTC and Samsung.

    No problem. Just repeat your findings into one of their phones: they'll literally get the message via CarrierIQ.

  7. Re:facepalm by sexconker · · Score: 4, Interesting

    You say this, like something complex is doomed to be incomprehensible to do correctly. Simple fact of the matter is, these silly folks are still using strlen(...) and ridiculously bad coding practices, known for decades, all to come in under deadlines.

    I see WAY too often a multi-tier database application, where security is implemented by constantly querying what rights the user has from a "Users" table. They implement security with a bunch of 'if/switch' statements and claim "it's the nature of complex software!" when a security vulnerability is found, rather than putting security on the database.

    Uh, what other way is there to implement a rights check?
    Whether you get your data once or a hundred times, or whether you do a specific check or rely on the OS do it, it doesn't matter - it's still a table of users + rights, and a bunch of conditional statements the cpu plows through. You may argue that it's more error prone if you're writing a query and an if statement every time a check is needed, rather than using an API or relying on the OS to automatically call its own APIs. But you can't say it's less secure until you actually have an incident where there was an error that would have been prevented by calling the API instead of doing an ad-hoc query + if.

    More likely to be insecure != insecure != less secure.

  8. Re:Android sucks by JustOK · · Score: 5, Funny

    he tried using "Frosty piss" with Siri, but it gave him directions to closest outdoor bathroom

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    rewriting history since 2109