Posts:

Introduction

3 weeks ago, I posted a rant about my frustration/concern related with crypto tools, more specifically the lack of tools to implement crypto-based protection for files on OSX, in a point-&-click user-friendly way.  I listed my personal Read more

Introduction

First of all, Happy New Year to everyone! I hope 2016 will be a fantastic and healthy year, filled with fun, joy, energy, and lots of pleasant surprises.

I remember when all of my data would fit on Read more

Intro

I receive a lot of emails.  (Please don’t make it worse, thanks!)   Unfortunately I don’t have as much spare time as I used to, or would like to, so I often have no other choice than Read more

Table of Contents

• Introduction
• Discounts (in alphabetical order):
  • Hak5
  • Hex-Rays
  • Malformity Labs
  • Netsparker
  • No Starch Press
  • Paterva
  • Rapid7
  • SANS
  • Security Roots
  • Syngress
  • Your name here ?

Table of Contents

• Introduction
• Discounts (in alphabetical order):
  • Hak5
  • Hex-Rays
  • Malformity Labs
  • Netsparker
  • Read more

Introduction

Last week, while doing my bi-weekly courseware review and update, I discovered that my heap spray script for Firefox 9 no longer works on recent versions.  Looking back at the type of tricks I had to use to 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

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

A lot has been said and written already about heap spraying, but most of the existing documentation and whitepapers focus on IE7 or older versions. Although there are a number of public exploits available that target IE8, the exact technique to do so has not been really documented in detail. Of course, you can probably derive how it works by looking at those public exploits. With this tutorial, I'm going to provide you with a full and detailed overview on what heap spraying is, and how to use it on old and newer platforms. I'll start with some "ancient" techniques (or classic techniques if you will) that can be used on IE6 and IE7. We'll also look at heap spraying for non-browser applications. Next, we'll talk about precision heap spraying, which is a requirement to make DEP bypass exploits work on IE8. I'll finish this tutorial with sharing some of my own research on getting reliable heap spraying to work on IE9. Read more

Traditional Egghunter

An Egghunter is nothing more than an assembly routine to find shellcode somewhere in memory. We typically deploy an Egghunter when there is no more room in our buffer that we can use to initially redirect EIP Read more

On June 14, 2011 HD Moore announced the Metasploit Bounty contest, offering a cash incentive for specific vulnerabilities to be submitted as modules in the Metasploit Framework. Titled "30 exploits, $5000 in 5 weeks", a post on the Rapid7 blog lists the 30 "bounties" selected by the MSF team, waiting for someone to claim and submit a working exploit module. Read more