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Author Topic: Downdater Question  (Read 60 times)

The Reepr

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Downdater Question
« on: July 25, 2006, 10:07:00 PM »
okay, I wonder how it works. I understand all about buffer overloadsa, and all about the psp's firmware (dumps, unpacking it, etc.) but how does this work? I heard it is similar to the tiff exploit for version 2.0, but it's not for the photo section. Does anyone know the details?
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RyanGamerGoneGrazy

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Downdater Question
« Reply #1 on: July 27, 2006, 05:05:00 PM »
Hmm, I cant be too specific, as many dont know the details, but apparently, it uses the exploit found in 2.5/2.6. This exploits some how relates to a security check, which in turn allows for flash0 access. Thus, via GTA eloader, one can boot up the downdater and downgrade to 1.5*


*All this may be incorrect, as info on it is sketchy.



Ryan


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The Reepr

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Downdater Question
« Reply #2 on: July 28, 2006, 07:41:00 AM »
I have looked all around for an exact answer. I understand that somehow using GTA allowed users to enter kernel mode, allowing us to rewrite to flash0, but I am wondering what the weak point is. I've tried comparing 2.6 to 2.7, but it simply says security updates, and it is impossible to find a definite asnwer on it. Oh, well back to google
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