Hooking Burp Suite in Client Software Communication

SecMyth

After learning to inspect security from all perspectives from Prof. Pfitzmann at the University, I am now working as Penetration tester and IT Security Consultant since 2009. I have seen many many different applications, architectures and technologies since then.
Web Applications, Web Services, Oracle, MySQL, Linux, SAP R3 are my focus technologies, while my activities are widely spreaded: manual penetration tests, static code analysis, code reviews, consulting, project management

Ever came across the issue to redirect HTTP(S) traffic to Burp Suite originating from client software that is not supporting to configure a proxy? Continue reading “Hooking Burp Suite in Client Software Communication”

Using Chrome Logger in BurpSuite

marko

Marko works as security professional since 2012 and performs assessments focused on web application security and code audits.

Latest posts by marko (see all)

In February of this year, a blog post by the OWASP ZAP newsletter has pointed us towards an interesting technology called Chrome Logger. Chrome Logger can be used to display server side debugging information into the web console (e.g. in Firefox) at runtime.

How it works

First, download and import the server side library which is available for different languages like Continue reading “Using Chrome Logger in BurpSuite”

PHP: Exploitation with $_REQUEST while validating $_GET

SecMyth

After learning to inspect security from all perspectives from Prof. Pfitzmann at the University, I am now working as Penetration tester and IT Security Consultant since 2009. I have seen many many different applications, architectures and technologies since then.
Web Applications, Web Services, Oracle, MySQL, Linux, SAP R3 are my focus technologies, while my activities are widely spreaded: manual penetration tests, static code analysis, code reviews, consulting, project management

While penetration testing and code reviewing a customer’s web-application I came across an interesting bug I’m going to describe in this article.

The application in question supports third party plugins which often follow their own coding-conventions.
During code review, a Cross-Site scripting vulnerability was detected in one of those plugins:

<?php
echo "<a href='index.php?plugin=".$_REQUEST['plugin']."'>Link text</a>";
?>

Continue reading “PHP: Exploitation with $_REQUEST while validating $_GET”

HTTP Side-Channel Attacks with Burp Suite

SecMyth

After learning to inspect security from all perspectives from Prof. Pfitzmann at the University, I am now working as Penetration tester and IT Security Consultant since 2009. I have seen many many different applications, architectures and technologies since then.
Web Applications, Web Services, Oracle, MySQL, Linux, SAP R3 are my focus technologies, while my activities are widely spreaded: manual penetration tests, static code analysis, code reviews, consulting, project management

Ever wanted a simple tool capable of performing a side-channel attack of HTTP requests? A common use case would be to test of the login action takes more time of the provided username is known by the system compared to an unknown username. The theory behind such an attack is that the code performing the login stops more early in the flow if the used username is not present in the system.

Well, to test such a weakness it is necessary to perform certain HTTP requests, e.g. logins, and to capture the need time to receive a response. But what tools are fulfilling these requirements? The search can’t be this hard. In fact the most common Continue reading “HTTP Side-Channel Attacks with Burp Suite”