Search Results for: buffer overflow exploit
Root Cause Analysis – Memory Corruption Vulnerabilities
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 of crashes, even for heavily targeted applications, was easy. However, determining the exploitability of these crashes, […]
DEPS – Precise Heap Spray on Firefox and IE10
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 make a precise spray work under Firefox 9 and IE 9, and realizing that these changes […]
HITB2012AMS Day 2 – Ghost in the Allocator
Ghost in the Allocator – Abusing the Windows 7 / 8 Low Fragmentation Heap After introducing himself, Steven Seeley, Senior Penetration Tester and Security Researcher at Stratsec starts his presentation by sharing the talk agenda: Why target the heap manager Heap terms Some Windows 7 theory WIndows 7 exploitation Changes introduced in Windows 8 Heap Windows […]
HITB2012AMS Day 2 – PostScript – Danger Ahead
Good morning everyone, welcome back at Hack In The Box 2012 Amsterdam ! Before looking at the first talk that I attended today, I would like to mention that you can find copies of the talks and materials on the hitb.org website. Files are made available right after a talk or lab finishes, you […]
BlackHat EU 2012 – Day 3
Good morning, Since doing live-blogging seemed to work out pretty well yesterday, I’ll do the same thing again today. Please join in for day 3 at BlackHat Europe 2012, in a cloudy and rainy Amsterdam. The first talk I attended today was : “Secure Password Managers” and “Military Grade Encryption” on Smartphones Andrey Belenko and […]
Debugging Fun – Putting a process to sleep()
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.
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WoW64 Egghunter
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 to. If we are able to load our shellcode elsewhere in process memory, the Egghunter will […]
Metasploit Bounty – the Good, the Bad and the Ugly
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.
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mona.py – the manual
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.
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Hack Notes : Ropping eggs for breakfast
Introduction I think we all agree that bypassing DEP (and ASLR) is no longer a luxury today. As operating systems (such as Windows 7) continue to gain popularity, exploit developers are forced to deal with increasingly more memory protection mechanisms, including DEP and ASLR. From a defense perspective, this is a good thing. But we […]
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