Editing Talk:Dumping Bootldr

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===The bootldr exploit===
===The bootldr exploit===


If you see the log ([[#Logs]]) you'll see a lot of data exchanging between the spu and the syscon. graf had described it on his bible so it was known... but the log also said that the data was read twice once to read the header and once to read header + data.
If you see the log ([[User_talk:JuanNadie|see here?]]) you'll see a lot of data exchanging between the spu and the syscon. graf had described it on his bible so it was known... but the log also said that the data was read twice once to read the header and once to read header + data.


On the header was a variable length. So I decided to change the len between both reads.... didn't work until i corrected also the chksum... and then BINGO! unexpected behavior... a possible exploit was found.
On the header was a variable length. So I decided to change the len between both reads.... didn't work until i corrected also the chksum... and then BINGO! unexpected behavior... a possible exploit was found.
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Problems / needed changes:
Problems / needed changes:
* NAND offsets differ from NOR : http://www.ps3devwiki.com/wiki/Flash
* NAND offsets differ from NOR : http://www.ps3devwiki.com/wiki/Flash
* NAND / FLASH controller doesn't have MMIO regions : www.psdevwiki.com/ps3/Talk:Hypervisor_Reverse_Engineering#MMIO_.2F_Memorymap
* NAND / FLASH controller doesn't have MMIO regions : http://www.ps3devwiki.com/wiki/Talk:Hypervisor_Reverse_Engineering#MMIO_.2F_Memorymap


=== Solution 1 ===
=== Solution 1 ===
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== Logs ==
== Logs ==


[[http://pastebin.com/LLWSbAQT 0x2F130 bootldr log]]<br>
[[http://pastebin.com/LLWSbAQT 0x2F130 bootldr log]]
[[User_talk:JuanNadie|another log]]


== Analysing bootloader Dumps in Ida Pro ==
== Analysing bootloader Dumps in Ida Pro ==
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