Recent Flaw with some ActiveX controls (Facebook, Yahoo) - how is itexploited

Discussion in 'Security Software' started by brightwell_151, Feb 11, 2008.

  1. I'm aware of the recently alerted flaw in the image uploder ActiveX
    control used by some popular social networking sites. But I haven't
    found technical details to explain where the risk actually lies...

    Is it in the Uploader talking to a malicious download application or
    is it the Uploader opening a malicious image file. Or is there a
    different attack vector?

    I don't suppose Facebook or MySpace would intentioanlly post a
    malicous download element to the Uploader - although someone could
    spoof one of these sites to get at an unsuspecting user.

    Or if it is crafted image files that we are worried about then as long
    as users stick to pictures which they know to be ok (such a photos
    they've taken themselves) then surely the risk is quite low.

    I'm guessing that the risk is related to the first mentioned above in
    that a malicious site could invoke the ActiveX control and then pass
    it crafted information- is that right?

    brightwell_151, Feb 11, 2008
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  2. Original Advisory: MySpace Uploader ActiveX Control Buffer Overflow

    MySpace Uploader Control ActiveX Control Property Handling Buffer

    Original: FaceBook/Aurigma Image/PhotoUploader Buffer Overflow

    Facebook Photo Uploader ActiveX Control Property Handling Buffer

    MowGreen [MVP 2003-2008]
    *-343-* FDNY
    Never Forgotten
    MowGreen [MVP], Feb 11, 2008
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  3. Thanks for your interest and response but I don't see how this
    addresses my point - I've checked the links (of which only one appears
    to refer Facebook ActiveX vulnerability).

    I already knew that it was a buffer overflow in the ActiveX control
    but I don't know what tirggers the overflow

    1. A malicious Download agent on the Server
    2. A crafted image file
    3. something else

    If it is the first two then I'm not so worried - because I doubt that
    Facebook (assuming I'm not misdirected) would attack me with a
    malicious agent and I'm also confident of the sources of any images I
    care to upload (i.e. they will come from my camera).

    If it is '3' (something else) then maybe I should be worried - but I
    have not got an answer to that.

    Does anyone have such an answer?

    brightwell_151, Feb 19, 2008
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