rpw

# reverse engineering tricks: Determine load addresses using string reference differentials
# (c) 2017-2023 Comsecuris GmbH

from idc import *
from idautils import *
from sets import Set

ATTEMPTS = 1

#############################################################################

rpw

\documentclass[a4paper]{article}
\usepackage{helvet}
\usepackage{amsmath}
\usepackage{amsthm}
\renewcommand{\familydefault}{\sfdefault}
\author{OpenAI's ChatGPT}
\title{A description of Buchberger's algorithm}
\begin{document}
\maketitle
\begin{abstract}

rpw

# Reverse engineering tricks: 
# Determine load addresses using differences between string references 
# (c) 2017 Comsecuris UG

from idc import *
from idautils import *
from sets import Set

ATTEMPTS = 10

rpw

# Debian 10 requires LLVM 9 to be installed from source (no package, no backport),
# hence we use Debian 11 (testing) for now (to be released in 2021).
FROM debian:bullseye
MAINTAINER Ralf-Philipp Weinmann <ralf@comsecuris.com

RUN apt-get update && apt-get upgrade -y && \
    apt-get install -y apt-utils build-essential sudo screen tmux

# Add user
RUN useradd -c 'User' -G sudo -s /bin/bash -m -g users user

rpw

#!/bin/bash
# quick and dirty bash script to extract .gnu_debugdata section
# from ELF binaries to generate an IDC script that adds these
# names as symbols
# --rpw, 2020-06-21

SYMBOLFILE=debugdata_symbols.elf

if [ $# -lt 1 ]; then
	echo "you need to supply a path to a binary"

rpw

The following text is verbatim from the ARM Processor Cortex-A53 MPCore Product Revision r0 Software Developers Errata Notice.

Description

When executing in AArch64 state, a load or store instruction which uses the result of an ADRP instruction as a base register, or which uses a base register written by an instruction immediately after an ADRP to the same register, might access an incorrect address.

Configurations affected

All configurations of Cortex-A53 are affected.

Conditions

There are two instruction sequences which can trigger this erratum, both only in AArch64 state.