UtilityScripts

Scripts that I use frequently. You know, like utilities.

To install all of them, just run

./install.sh

syscall_lookup

Utilizes pwntools to lookup which syscall a value maps to. Multiple architectures are supported using the -a flag

get_docker_libs.sh

Pull down the specified docker container and copy its ld-x.xx.so and libc-x.xx.so to your current directory.

ld_patch.sh

Patch the specified binary to use the ld-*.so in your current directory. Just remember to LD_PRELOAD or LD_LOAD_LIBRARY the correct libc when launching the binary. This is meant to make CTF challenges runnable locally even if they are made for a completely different version of linux:

get_docker_libs.sh ubuntu:20.04
cp chal chal.fix
ld_patch.sh chal.fix
LD_LIBRARY_PATH="$(pwd)" ./chal.fix

all_man_refs

man --apropos <term>, but actually searches through all of the man pages for the term in case there is just a passing reference to it.

find_elf_defining_sym.sh_

Find the elf shared object that defines a specific symbol. Meant for statically searching through firmware that has a lot of custom libraries in it without being able to run the firmware.

get_macros.py

Try to extract the C macros from header files so that they can be hacked into other things. If you wanted to get all of the syscall numbers and make them python variables, you could do something like:

get_macros.py -p /usr/include/asm-generic/unistd.h

uimage_wrap.py

script for shoving arbitrary files into the uimage format quickly

SimpleScraper

A very basic webscraper. Intended for archiving websites including all of the content/media/scripts that the site is hosting for that specific page. note, archiving medium.com posts is doable, but one of the js scripts changes the page to a 404 error if the site is not actually being hosted on medium.

TypeConverter

A basic script to perform c type conversions from the command line.

mktemplate

General purpose file templating tool that utilizes the Jinja2 templating module.

I find myself needing to make scripts that are fairly boilerplate with a few variables that need to be changed, especially when making scripts for CTF solutions. Here is my attempt to streamline the process.

To install just run

./install.sh

Examples:
        mktemplate -o ./someone_elses_templates/ install pretty_template1 pretty_template2
        mktemplate copy pwn --binary-path binary --remote-host=abc.xyz
        mktemplate create newtemplate
        mktemplate list
        mktemplate -t ./someone_elses_templates/ list

For examples of template directories, check out https://github.com/flounderk/mytemplates

BinClipper

Modify binary files from the command line