tl;dr

• Create a Linux profile for Ubuntu 18.04 (5.4.0-42-generic) in Volatility
• Use linux_bash plugin to get link to the repo and linux_find_file plugin to recover the filepath
• Decode the keyboard stream data to retrieve the flag

tl;dr

• This is a fairly simple Maze challenge
• Challenge is written in rust

tl;dr

• Jemalloc heap challenge
• A buggy implementation of strncat in merge allows for an overwrite onto the next region

tl;dr

• This is a simple stack based VM
• 25-27 opcodes and 8 different constraints
• Extract the constraints
• Use z3 to find a satisfying model

tl;dr

• UAF in chess game, overwrite __malloc_hook to one_gadget

tl;dr

• The dump has some encrypted functions
• The encrypted bytes are being xorred with a 32 byte key
• Find the xor_key in the dump
• Use xor_key offset to find the offset of AES_key and iv
• AES_CBC decrypt to find flag

tl;dr

• Abusing a stack overflow on a RISC-V binary to then return to shellcode.

tl;dr

• overflow the char candle counter stored in the wax structure and trigger uaf.
• Use the uaf to trigger double free and get shell.

tl;dr

• Out-of bounds index write allows byte-by-byte overwrite of return address

tl;dr

• Carefully arranging structs on stack so as to overwrite saved rip , without corrupting the stack canary.
• Leak libc with puts and execute a ret2libc to get shell