RE: phpBB 2.0.17 remote avatar size bug

From: Sean Sullivan (admin_at_capitalwebhost.net)
Date: 09/20/05

  • Next message: Kenneth F. Belva: "Paper - How It's Difficult to Ruin a Good Name: An Analysis of Reputational Risk"
    To: "Bug Traq" <bugtraq@securityfocus.com>
    Date: Tue, 20 Sep 2005 17:06:52 -0400
    
    

    I think some people just try to hard to find problems with PHPBB. Yes, this
    is a "bug", but it's FAR from a security issue.

    LOL.

    -----Original Message-----
    From: SmOk3 [mailto:smok3f00@gmail.com]
    Sent: Tuesday, September 20, 2005 6:56 AM
    To: bugtraq@securityfocus.com
    Subject: phpBB 2.0.17 remote avatar size bug

    Title: phpBB remote avatar size bug
    Software: phpBB 2.0.17 (and maybe prior versions)
    Discovered by: David Sopas Ferreira < david at systemsecure dot org >
    Original link: http://www.systemsecure.org/ssforum/viewtopic.php?t=272

    » Email from phpBB «

    Your report "Avatar size" has been closed because your reported issue is
    invalid.
    Classifying a report as invalid can have various reasons, most of the time
    the report is incomplete.

    If you think your report has been handled incorrecly, please submit
    another report at http://www.phpbb.com/security/index.php.

    Comment added by team member:

    This isn't a security problem. You can do the same thing with a standard
    webpage. As for checking remote avatar size, there are several inherit
    problems with that, which I won't detail here. As this isn't a security
    problem, closing.

    » End Of Mail - «

    » My personnal opinion:

    I think this is a minor security problem. A malicious user can use larger
    images
    (for example: 1280px - 1024px) to almost damage the entire view of a
    topic. This, to
    be done, has to have Remote Avatar selected.

    So, if the admins don't consider this a minor security problem, what
    is it? A "special"
    feature?

    I don't want to criticize the phpBB coders, but why is it dificult to
    check out the size
    of a image and telling the user that that size of image it's not
    possible, or even block the
    size on the viewtopic table, something like that.

    » Possible solution:

    Disable remote avatar or just dig in the code to set the image size you
    want.


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