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  1. #1
    DF VIP Member Spennyboy's Avatar
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    Default Possible 2.50 Overflow Exploit

    Credit to DaveBach172 for posting this in another thread - i thought i would create a seperate one for proper chat about it.

    Possible 2.50 Overflow Exploit - Warning NOT Tested

    UPDATE: We've gotten 3 confirmations from forum users that this indeed works properly as an overflow exploit just as stated by the creator. This of course does not ensure it is safe, but after 6 hours and no reports of bricking, I feel confident to take this off such a high alert status and place it into a legitimate exploit status. Kudos PSPlayer1001, I believe you might have found something useful here.

    We’ve gotten about 20 emails from users claiming that a new TIF overflow has been created for PSP firmware version 2.50 by a guy named PSPlayer1001 from the "PSP3D hacking team". Basically, he claims it freezes up the PSP when run, just like the original overflow exploit for 2.00 did. A similar exploit was found in the 2.00 firmware, which was used to create the MPH 2.00 -> 1.50 downgrader.

    We do not have a fv2.50 PSP here at QJ, and even if we did we’d be hesitant to try such a file without the creator stepping forward and giving us more information (email us!). We weren’t going to put this up, but we figured there would be people out there that would want to hear about it. If it’s true, then great. If not, then oh well, no loss.

    We warn you though, that EBOOT files that brick (break) your PSP *do* exist, and we strongly caution all but the most knowledgeable users not to download and test this file. We are only posting it so that we can get validation and pass a verdict one way or another on this file. As soon as we can pass judgement, I will update this post (or delete it if it’s bogus). Get the EBOOT [here]. Please use the "Submit News" feature up top to report your findings.

    Oh, and I forgot to mention there is a crappy low quality video, which can be seen Here
    Source: http://pspupdates.qj.net/ (scroll down bit of the page)

    what ya all think? :nowords:

  2. #2
    DF Rookie davebach172's Avatar
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    Default Re: Possible 2.50 Overflow Exploit

    Looks great doesn't it - if its true - I'll wait a bit before i completely believe it (plus i dont have a 2.50 to test it on) - but will be superb for all the giga pack owners out there!

  3. #3
    DF VIP Member Q-Ball's Avatar
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    Default Re: Possible 2.50 Overflow Exploit

    OK, can someone actually explain what this overflow explot actually means, or is/does?

    Thanks
    Q
    If I'm not back in five minutes... wait longer!

  4. #4
    DF VIP Member crazyal's Avatar
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    Default Re: Possible 2.50 Overflow Exploit

    Quote Originally Posted by Q-Ball
    OK, can someone actually explain what this overflow explot actually means, or is/does?

    Thanks
    Q
    The exploit consists of two specialised images - a .TIF that causes the buffer overflow and a png that contains the homebrew code. It works by using one image that must be set as the wallpaper, since this ensures the code it contains is placed in a known address of memory (Video RAM).

    When the 2nd image is opened, it exploits the overflow vulnerability by overwriting a return address in the stack such that its processor jumps to the homebrew code stored in the Video RAM.

    360 Gamertag: crazyai
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    IM me at pushme.to

  5. #5
    DF VIP Member Keva's Avatar
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    Default Re: Possible 2.50 Overflow Exploit

    this is great news wish they kept it private till it was fully working ... now sony will most likely patch it and release a new firmware

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