In 2015, Alexey Tyurin from ERPScan presented at the Hack-In-The-Box Amsterdam conference  multiple attack vectors to defeat the widely used Oracle PeopleSoft (or PS) system. Many companies in various market verticals are relying on this massive and complex software to host confidential information about their employees, their students or even about the financial results of the company.
In this article, we will be looking at a new exploitation technique using the default OPcache engine from PHP 7. Using this attack vector, we can bypass certain hardening techniques that disallow the file write access in the web directory. This could be used by an attacker to execute his own malicious code in a hardened environment.
As a penetration testers, we rarely have to find ‘zero day’ vulnerabilities or perform ‘bug hunting’ in order to compromise Windows Active Directory Domains. However, in one of these rare cases while performing an internal penetration test for a client, we had to do so. Lansweeper is an inventory software that scans your network in order to gather system information such as patch level, network interfaces, resources status, etc. We were fairly surprised during this test when we were able to access Lansweeper 5’s dashboard with a regular user account.
AtlSecCon is almost there! Philippe and I are pretty excited to be speaking there this year! Our presentations will cover some of the analysis we performed: Linux/Moose, LizardSquad, Win32/RBrute,and more. Finally, some advice will be given to the audience in order to help protect themselves, their organizations and their families.
As a follow-up to the conference given at Confoo a few weeks ago, we are doing a focus article on the same topic. The presentation was giving an overview of the modern XSS attack vectors and filter bypass. In this blog post, we will take a closer look at XSS in the context of .NET applications.