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2020 xgame PWN how name

Time:10-22

Write the write up for the first time, some unfamiliar, hope everybody the teacher correct


Drag the file see the Linux system

Is a 64 - bit application, also opened a lot of protection
Into a 64 - bit of IDA

It's obvious that the shellcode is that we implement, and application is a 64 - bit, pwntools generated shelcode default is 32 bit, so you need to set up the architecture,
Namely: context. The arch='AMD64'
As for shellcode is how much a look at how much want us to fill. Return to IDA in the

The 32 hexadecimal or decimal in 20, filling 20 can
Exp is as follows:

Run as shown in figure:
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