C3: EZ pwn 2(2022) C3: EZ pwn 2(2022})

Name

C3: EZ pwn 2

Type

ez-pwn

Points

100

Description

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

,

nc chals.2022.squarectf.com 4101

ezpwn2.zip

See also

Work_at_Square(1), Privacy_policy(1), Code_of_conduct(1)

Block, Inc. (c) C3: EZ pwn 2(2022)