Tool for parsing specific escape sequences and providing them as input in place to a process. Useful for purposes where raw bytes need to be sent to a process as input i.e. binary exploitation. The goal here is not to replace exploit scripts by any means, but to offer a quick and easy way to test input to a process without having to touch a code editor.
python bein.py [-h] [-o <file>] [-v] [-a] [-an] [-l] [-r] [-p <process>] -h : Show this help message and exit
-o <file> : Write output to file instead of stdout
-v : Be verbose, prints all exceptions and errors
-a : Only output standard keyboard characters (ascii 32-127)
Anything else will be written as [0x??]
-an : Like -a except allow newline characters too
-l : Use little endian byte order when parsing hex values initialized with \0x
-r : Raw input, strips newline characters from the input
-p <process> : Run the specified process and parse input before sending it to the process
To pass additional arguments to the process itself
use quotes around the command: -p 'ls -al'
Alternatively, use: -p bash or: -p sh and run commands from the shellprompt_toolkit
pwntools\x41 -> A
\x41\x42 -> AB
\x413 -> A3
\xGG -> \xGG
\0x41 -> A
\0x4142 -> AB
be careful with putting stuff after the hex value.
if you need to add more characters after \0x4142,
use a \ to terminate the sequence
\0x4142abc -> [0x04 0x14 0x2a 0xbc] likely not what you want
\0x4142\abc -> ABabc
(using little endian option: -l only affects \0x sequences)
\x41\x42 -> AB
\0x4142 -> BA
\0x4142\abc -> BAabc
\0 -> null byte
\n -> newline
\r -> carriage returnThis tool heavily depends on pwntools ability to handle I/O of processes and prompt toolkit for a nicer command line experience, allowing you to use the arrow keys like in bash and auto completions based on your input history.
I will keep updating this project as I see fit. Suggestions are welcome.