C3: EZ pwn 2(2022})
C3: EZ pwn 2(2022})
C3: EZ pwn 2
ez-pwn
100
Fun fact, I wrote this last friday because of a work related slack thread.
Required reading:
- intro to x86 https://www.cs.virginia.edu/~evans/cs216/guides/x86.html
- x86-64 stack layout https://eli.thegreenplace.net/2011/09/06/stack-frame-layout-on-x86-64
- Stack Canaries https://www.sans.org/blog/stack-canaries-gingerly-sidestepping-the-cage/
- stack based buffer overflows https://en.wikipedia.org/wiki/Stack_buffer_overflow
- ASLR https://en.wikipedia.org/wiki/Address_space_layout_randomization
Optional Reading:
- pwntools https://docs.pwntools.com/en/stable/intro.html#making-connections
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nc chals.2022.squarectf.com 4101
ezpwn2.zip
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