require 'one_gadget/gadget'
# https://gitlab.com/david942j/libcdb/blob/master/libc/libc6_2.28-0ubuntu1_i386/lib/i386-linux-gnu/libc-2.28.so
# 
# Intel 80386
# 
# GNU C Library (Ubuntu GLIBC 2.28-0ubuntu1) stable release version 2.28.
# Copyright (C) 2018 Free Software Foundation, Inc.
# This is free software; see the source for copying conditions.
# There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
# PARTICULAR PURPOSE.
# Compiled by GNU CC version 8.2.0.
# libc ABIs: UNIQUE IFUNC ABSOLUTE
# For bug reporting instructions, please see:
# <https://bugs.launchpad.net/ubuntu/+source/glibc/+bugs>.

build_id = File.basename(__FILE__, '.rb').split('-').last
OneGadget::Gadget.add(build_id, 257699,
                      constraints: ["esi is the GOT address of libc", "[esp+0x34] == NULL"],
                      effect: "execve(\"/bin/sh\", esp+0x34, environ)")
OneGadget::Gadget.add(build_id, 257701,
                      constraints: ["esi is the GOT address of libc", "[esp+0x38] == NULL"],
                      effect: "execve(\"/bin/sh\", esp+0x38, environ)")
OneGadget::Gadget.add(build_id, 257705,
                      constraints: ["esi is the GOT address of libc", "[esp+0x3c] == NULL"],
                      effect: "execve(\"/bin/sh\", esp+0x3c, environ)")
OneGadget::Gadget.add(build_id, 257712,
                      constraints: ["esi is the GOT address of libc", "[esp+0x40] == NULL"],
                      effect: "execve(\"/bin/sh\", esp+0x40, environ)")
OneGadget::Gadget.add(build_id, 257747,
                      constraints: ["esi is the GOT address of libc", "[eax] == NULL || eax == NULL", "[[esp]] == NULL || [esp] == NULL"],
                      effect: "execve(\"/bin/sh\", eax, [esp])")
OneGadget::Gadget.add(build_id, 257748,
                      constraints: ["esi is the GOT address of libc", "[[esp]] == NULL || [esp] == NULL", "[[esp+0x4]] == NULL || [esp+0x4] == NULL"],
                      effect: "execve(\"/bin/sh\", [esp], [esp+0x4])")
OneGadget::Gadget.add(build_id, 433019,
                      constraints: ["esi is the GOT address of libc", "eax == NULL"],
                      effect: "execl(\"/bin/sh\", eax)")
OneGadget::Gadget.add(build_id, 433020,
                      constraints: ["esi is the GOT address of libc", "[esp] == NULL"],
                      effect: "execl(\"/bin/sh\", [esp])")

