Offensive and defensive security stuff focus on linux environment.
Exploit Development
This article series is a technical dive into the evaluation of these memory corruption mitigations. This part is focus on memory error detection tools introduced over years.
Exploit Development
This article series is a technical dive into the evaluation of these memory corruption mitigations. This part is focus on mitigations that second generation, mostly introduced after 2010.
Exploit Development
This article series is a technical dive into the evaluation of these memory corruption mitigations. This part is focus of mitigations that first generation, introduced before 2010 mostly.
Exploit Development
Arbitrary Code execution due to memory corruption is there since the years and still a major thing. Over the year, new protective measures have been introduced periodically to mitigate these attacks.This article series is a technical dive into the evaluation of these memory corruption mitigations.
Linux
Linux kernel goes through rapid changes frequently. Unlike other platforms, Linux security features are not advertised enough and are limited to mail threads. Since Linux is getting more popular, it's important to be aware about protections it provides against sophisticated attacks targeting kernel.
Rootkits
In this post we will see how can you use ftrace to hook linux system calls. For learning purpose, we will create a kernel module that will make any target file immutable in system.
Firmware
In this part of the series we will go through the basic of PCI devices and their memory. We will be developing linux kernel driver and using chipsec to analyze the data practically.
Exploit Development
In this post I will try to give you a brief on how format string exploitation can differ in 64 bit architecture due to different calling convention in 64 bit.
Intel architecture
In this article we will go through Segmentation in basic and cover it for x64 (IA-32e) processors by extracting the details inside a Linux system.
Virtualization
In this article series you are going to learn how to develop your own hypervisor for virtualization in linux ecosystem. In this part we will do the setup of HOST and GUEST state area and at last the vmlaunch.
Virtualization
In this article series you are going to learn how to develop your own hypervisor for virtualization in linux ecosystem. In this part we will do the setup of VMCS structure.
Virtualization
In this article series you are going to learn how to develop your own hypervisor for virtualization in linux ecosystem. In this part we will execute VMXON operation.