david942j/one_gadget

require 'one_gadget/gadget'
# https://gitlab.com/david942j/libcdb/blob/master/libc/libc6_2.23-0ubuntu10_i386/lib/i386-linux-gnu/libc-2.23.so
# 
# Intel 80386
# 
# GNU C Library (Ubuntu GLIBC 2.23-0ubuntu10) stable release version 2.23, by Roland McGrath et al.
# Copyright (C) 2016 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 5.4.0 20160609.
# Available extensions:
#     crypt add-on version 2.1 by Michael Glad and others
#     GNU Libidn by Simon Josefsson
#     Native POSIX Threads Library by Ulrich Drepper et al
#     BIND-8.2.3-T5B
# libc ABIs: UNIQUE IFUNC
# 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, 240732,
                      constraints: ["esi is the GOT address of libc", "[esp+0x28] == NULL || {[esp+0x28], [esp+0x2c], [esp+0x30], [esp+0x34], ...} is a valid argv"],
                      effect: "execve(\"/bin/sh\", esp+0x28, environ)")
OneGadget::Gadget.add(build_id, 240734,
                      constraints: ["esi is the GOT address of libc", "[esp+0x2c] == NULL || {[esp+0x2c], [esp+0x30], [esp+0x34], [esp+0x38], ...} is a valid argv"],
                      effect: "execve(\"/bin/sh\", esp+0x2c, environ)")
OneGadget::Gadget.add(build_id, 240738,
                      constraints: ["esi is the GOT address of libc", "[esp+0x30] == NULL || {[esp+0x30], [esp+0x34], [esp+0x38], [esp+0x3c], ...} is a valid argv"],
                      effect: "execve(\"/bin/sh\", esp+0x30, environ)")
OneGadget::Gadget.add(build_id, 240745,
                      constraints: ["esi is the GOT address of libc", "[esp+0x34] == NULL || {[esp+0x34], [esp+0x38], [esp+0x3c], [esp+0x40], ...} is a valid argv"],
                      effect: "execve(\"/bin/sh\", esp+0x34, environ)")
OneGadget::Gadget.add(build_id, 240780,
                      constraints: ["esi is the GOT address of libc", "[eax] == NULL || eax == NULL || eax is a valid argv", "[[esp]] == NULL || [esp] == NULL || [esp] is a valid envp"],
                      effect: "execve(\"/bin/sh\", eax, [esp])")
OneGadget::Gadget.add(build_id, 240781,
                      constraints: ["esi is the GOT address of libc", "[[esp]] == NULL || [esp] == NULL || [esp] is a valid argv", "[[esp+0x4]] == NULL || [esp+0x4] == NULL || [esp+0x4] is a valid envp"],
                      effect: "execve(\"/bin/sh\", [esp], [esp+0x4])")
OneGadget::Gadget.add(build_id, 392133,
                      constraints: ["esi is the GOT address of libc", "eax == NULL"],
                      effect: "execl(\"/bin/sh\", eax)")
OneGadget::Gadget.add(build_id, 392134,
                      constraints: ["esi is the GOT address of libc", "[esp] == NULL"],
                      effect: "execl(\"/bin/sh\", [esp])")