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C++ Memory Corruption (std::vector) - part 2

Summary This is the 2nd part of the C++ memory corruption series*. In this post, we'll look at corrupting the std::vector class in Linux and see what exploitation primitives we can gain. We'll see that we can build arbitrary read/write primitives. * https://blog.infosectcbr.com.au/2020/08/c-memory-corruption-part-1.html   Author: Dr Silvio Cesare Introduction C++ is a common language for memory corruption. However, there is much more literature on exploiting C and not C++ programs. C++ presents new classes, objects, and data structures which can all be effectively used for building exploitation primitives.  In this post, we'll look at the std::vector class and see what specific primitives we can obtain.  Let's start by looking at /usr/include/c++/bits/stl_vector.h namespace std _GLIBCXX_VISIBILITY ( default ) { _GLIBCXX_BEGIN_NAMESPACE_VERSION _GLIBCXX_BEGIN_NAMESPACE_CONTAINER /// See bits/stl_deque.h's _Deque_base for an explanation. template < typename

InfoSect Training Demographics for 2021

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InfoSect is an Australian based training computer security company that started in 2016, offering professional training from the end of 2018.  In 2021 we had the following courses on offer: Reverse Engineering Code Review Linux Heap Exploitation Browser (JS Engine) Exploitation IoT Security InfoSect teaches both in-person (COVID-19 permitting) and live, interactive online training options and keeps low class sizes.   The following are the demographics of our course offerings for 2021 taken from course booking details and post-course surveys. Geography InfoSect was traditionally a local training company, but opened itself up to International training in 2020 when we began offering live, online training delivery. In 2021 InfoSect's overseas' students made up just under 20% of its trainings.  The below graph shows a breakdown of the continent the students were located. It is apparent that we are still primarily an Australian training company. Delivery Format In 2020 InfoSect began