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32 lines
787 B
Markdown
32 lines
787 B
Markdown
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`Taken verbatim from my notebook`
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# Page 1
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```
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Algiers d.01
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"LockIT Pro Account Manager"
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Tentative TODO:
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Authorizer? How to auth user
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Interfaces with HSM1
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I can overflow heap objects
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uname&pass 0x30 long
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>0x10 overflows
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Can I craft a fake heap object?
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username -> overwrite pass blk header?
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password -> ???
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Hypothesis: arb write in free()
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Username
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passwordpassword[addr]
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"d E "?
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4398:
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0000 4044 0000 .... Unguarded
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in free: free() is arb
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r15 = &this_block write~!
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r14 = &prev_block
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r13 = {size:15,final:1}
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r12 = {prev_size:5,final:1}
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if prev is final:
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skip last-block steps
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else last-block steps
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```
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