Debugging (15)

Stop just using WinDBG—start bending it to your will. Discover powerful automation, event-driven breakpoints, MASM & C++ expression evaluator, scripting, and PyKD techniques to level up your exploit development and crash analysis. Read more

The Corelan tutorials helped shape how exploit development is learned worldwide and inspired generations of security researchers. Now you can watch them come to life. Read more

Table of Contents

• Introduction
• Why WinDBG?
  • Symbols?
• Installing WinDBG Classic and WinDBGX
  • Why do we need both?
  • Scripted/automated installation
  • Manual Installation
    • Classic WinDBG
    • WinDBGX
  • Microsoft Symbol Server
  • Verify if both versions work
• Connecting to a process
  • Open executable vs Read more

Table of Contents

• Foreword
• Introduction
• Analyzing the Crash Data
• Identifying the Cause of Exception
  • Page heap
  • Initial analysis
• Reversing the Faulty Function
• Determining Exploitability
  • Challenges
  • Prerequisites
  • Heap Basics
    • Lookaside Lists
    • Freelists
  • Preventative Security Measures
    • Safe-Unlinking
    • Heap Cookies
  • Application Specific Read more

Introduction

For the past year or so I've spent a significant amount of time fuzzing various applications with the hopes of identifying exploitable crashes.  Early on in my research I quickly realized that building fuzzers and generating large quantities Read more

Introduction

Time flies. Almost 3 weeks have passed since we announced the ability to run mona.py under WinDBG.  A lot of work has been done on mona.py in the meantime.  We improved stability and performance, updated to pykd.pyd 0.2.0.14 Read more

Ho Ho Ho friends,

It has been a while since we posted something on the Corelan Team blog, I guess we all have been busy doing ... stuff and things, here and there.  Nevertheless, as the year is close Read more

Recently I played with an older CVE (CVE-2008-0532, http://www.securityfocus.com/archive/1/489463, by FX) and I was having trouble debugging the CGI executable where the vulnerable function was located. Read more

This document describes the various commands, functionality and behaviour of mona.py. Released on june 16, this pycommand for Immunity Debugger replaces pvefindaddr, solving performance issues and offering numerous new features. pvefindaddr will still be available for download until all of its functionality has been ported over to mona. Read more

FINALLY ! After spending almost 6 months of designing, developing and testing, and after 'surviving' 2 presentations (at AthCon and Hack In Paris), I am extremely excited and proud to present, on behalf of the entire Corelan Team, the general availability of mona.py. With this announcement, we also declare pvefindaddr officially dead from this point forward. (This doesn't mean pvefindaddr is now entirely worthless, because not all functions have been ported into mona yet, but we won't be releasing any updates to pvefindaddr anymore and the entire project page/download page will eventually disappear) Read more