Events

Incident Analysis and Digital Forensics Summit 2018, 14th of November of 2018

*This event will be held in German*

Inspiriert durch die erfolgreichen Round-Table-Diskussionen der Troopers-Konferenz freuen wir uns, Ihnen heute mit dem Incident Analysis and Digital Forensics Summit 2018, eine weitere Veranstaltung in einer Reihe zu Trend-Themen im Bereich der IT-Sicherheit vorzustellen.

Die Veranstaltung beginnt am Morgen mit einem Eröffnungsvortrag von Thomas Schreck (Chairman of the Board des internationalen CERT Verbunds FIRST), gefolgt von Fallstudien und Vorträgen durch weitere Referenten aus der Industrie und Strafverfolgung.

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Breaking

Vulnerabilities in Sitefinity WCMS – A Success Story of a Responsible Disclosure Process

Preface

For those who never heard of Sitefinity before, it is an ASP.NET-based Web Content Management System (WCMS), which is used to deploy and manage applications as other CMS‘s do. A bitter quick glance at Sitefinity and its advantages can be found in this overview.

Delving into the core of this blog post, recently I had the opportunity to look at Sitefinity WCMS in which I found two reflected Cross Site Scripting (XSS) (CVE-2018-17053 and CVE-2018-17056), a* stored XSS* (CVE-2018-17054) and an arbitrary file upload (CVE-2018-17055) vulnerabilities.

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Breaking

Spraying arbitrary objects into the non-paged pool

Recently, I had some time to play around with HEVD [1], an extremly vulnerable Windows driver available for 32-bit and 64-bit systems.

Since exploits for all vulnerabilities of the 32-bit variant are publically available, I was wondering why this is not the case for the 64-bit version, especially for the pool corruption and UAF vulnerabilities.

After digging around a bit, it turned out that the reason is the following. HEVD uses a “special” sized object which is improperly handled such that a Use-After-Free vulnerability arises.

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Events

Active Directory Security Summit 2018, 13th. of November of 2018

I have the pleasure to announce the Active Directory Security Summit 2018 at 13^(th). of November of 2018. The summit covers current Active Directory security related topics such as challenging tasks of hybrid Active Directory operations as well as new security best practices and some ‘evergreens’ – Admin Tiering implementations (what about Exchange and DNS…??), ESAE operations etc. 😉

The primary objective of the Active Directory Security Summit is to bring experts together:

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Building

nmap-parse-output: A tool for analyzing Nmap scans

tl;dr: With the tool nmap-parse-output you can convert, manipulate or extract data from a Nmap/masscan scan output. This allows you to get the information you’re looking for by just entering a straightforward command.

Preamble

A while ago, we had to scan a mass amount of IPs within a project for a customer. While it’s feasible to read the whole output of a Nmap scan if you have just a few alive hosts, this was not possible anymore for this mass amount of systems. We’ve started with a masscan to scan all 2^16 ports of the IP ranges and wanted to perform a more precise analysis of the alive hosts (which had responded to at least one SYN packet) with Nmap. The result of this scan grew to nearly a hundred megabyte and we now had to do an analysis of which ports we had to look deeper into and which are intended to be open.

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Breaking

A few notes on WordPress Security

Taking a look at the CVE List for WordPress, most vulnerabilities aren’t found within the WordPress core but inside of third-party plugins and themes.

Today, let’s talk about WordPress.

Performing a WordPress assessment might seem boring at first as core functionality [tested] and configuration does not allow for extensive security misconfigurations. Luckily, most instances use plugins and themes to add features not offered by the WordPress core.

In this blog post I would like to discuss the findings and how I discovered them. Also, I will describe different vendor responsiveness reaching from not responding at all, to not understanding the issue to fast and professional responses kindly asking for a review of the updated code ready for deployment.

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Building

IPython Support for Binary Ninja

This blogpost is about the release of a plugin for Binary Ninja that allows you to run a Python Kernel inside the Binary Ninja GUI environment to which you can attach a Jupyer (QT) console, formerly known as IPython shell. The first section is about why this is useful, the second is about some issues I encountered and how to solve them, and the third contains everything you need to know to set it up.

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Building

dizzy version 2.0 released

A new major version of our fuzzing framework dizzy has been released.

This blog post will cover the biggest changes and new features, as well as give you a short introduction into how to use them.

You can find the new version on github.

Installation

There are two supported ways of installing dizzy:

via pypi
$ pip install dizzy
via setup.py
$ git clone https://https://github.com/ernw/dizzy && cd dizzy && python setup.py install

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Events

Diversity, Community, Blackhoodie

Gender equality in the Infosec world as a topic of discussion comes with a lot of heated arguments and differences in opinion.
So let me start with some disclaimers on the target audience for this post. If you are in the category who believes everything about gender is perfect in the infosec world, this post is not for you. If you are in the category who believes gender and bringing diversity is not your area of interest, then this post is not for you either. There are so many interesting problems that the world offers you. Climate change, poverty, diseases, unemployment, addiction, science problems and what not. Everybody has the freedom to choose their area of interest and contribute towards it. If you are in the category who thinks gender equality in infosec needs some attention and would like to explore more on the topic without prejudices, then this post may  be interesting to you.

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Misc

A little KeePass Mea Culpa…

Some weeks ago, I tweeted about grabbing clipboard content from KeePass with some PowerShell. From some reactions to this tweet, and after reading it a couple of times again, I realize it was sending the wrong message, and I would like to take a bit more than 280 chars to clarify what I meant when I posted that tweet…

TLDR: Password managers are a must, not using one exposes you to far more risks than using one. Do it. 

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