Another way to get code into the kernel is to patch the kernel image itself. We will illustrate in this chapter a simple patch to remove security controls from the NT kernel. Any piece of code can be modified in such a way. One needs to be sure to correct any integrity checks in the code, such as the file check-sum. An article on patching the Linux kernel can be found in th Phrack Magazine, issue 60, Article 8: "Static Kernel Patching" by jbtzhm.
Excerpt from: "Exploiting Software, How to Break Code"
Excerpt from: "Exploiting Software, How to Break Code"
