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Airachnid: Web Cache Deception Burp Extender

Introduction Cross-Site Request Forgery (CSRF) attacks are well established and understood, having been in the OWASP top ten for ten years. For those of you not so familiar with this vulnerability, it takes place when a user can be coerced...

How To Decrypt Ruby SSL Communications with Wireshark

Debugging a program that communicates with a remote endpoint usually involves analyzing the network communications. A common method is capturing the traffic using a packet analyzer tool such as tcpdump or Wireshark. However, this process can be tricky when the...

Alina POS malware "sparks" off a new variant

Alina is a well-documented family of malware used to scrape Credit Card (CC) data from Point of Sale (POS) software. We published a series of in-depth write-ups on the capabilities Alina possesses as well as the progression of the versions....

Cracking IKE Mission:Improbable (Part3)

Introduction As discussed in parts 1 and 2 of this series, the most common VPN endpoints (responders) found supporting Aggressive Mode negotiation are Cisco devices. However, they are also almost always supported by a second factor authentication mechanism known as...

Responder 2.0 - Owning Windows Networks part 3

Introduction: The power and flexibility of Responder has grown significantly over the past year. Responder is a powerful and easy-to-use tool for penetration testers looking to highlight and exploit weaknesses in a number of popular default network configurations. In this...

CVE-2014-0050: Exploit with Boundaries, Loops without Boundaries

In this article I will discuss CVE-2014-0050: Apache Commons FileUpload and Apache Tomcat Denial-of-Service in detail. The article reviews the vulnerability's technical aspects in depth and includes recommendations that can help administrators defend from future exploitation of this security issue....

The Way of the Cryptologist

Right before DEF CON, a friend of mine reached out to me to ask if I would write a crypto challenge for his CTF. While it was a busy time for me, I didn't want to pass up the chance...