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How to execute an object file: Part 3
10 September 2021Continue learning how to import and execute code from an object file. In this part we will handle external library dependencies.
How to execute an object file: Part 2
2 April 2021Continue learning how to import and execute code from an object file. This time we will investigate ELF relocations.
How to execute an object file: Part 1
2 March 2021Ever wondered if it is possible to execute an object file without linking? Or use any object file as a library? Follow along to learn how to decompose an object file and import code from it along the way.
Probably the simplest way to install Debian/Ubuntu in QEMU
5 January 2021Without downloading any installation media
Passkb: how to reliably and securely bypass password paste blocking
9 December 2020Introducing a simple tool, which helps pasting text into online forms with blocked paste functionality. The tool makes the adoption of a password manager much easier for Web applications, which block password paste.
Sandboxing in Linux with zero lines of code
8 July 2020In this post we will review Linux seccomp and learn how to sandbox any (even a proprietary) application without writing a single line of code.
Import Markdown into Medium in 4 clicks
25 May 2020Or my first web app in 10 years: what could go wrong?
Fixing weak crypto in OpenSSL based applications
13 April 2020Fixing a proprietary tool, which uses weak cryptography, and learning runtime code patching along the way.
Speeding up Linux disk encryption
25 March 2020How to double the performance of disk encryption in Linux.
Using Go as a scripting language in Linux
20 February 2018Why use Go as a scripting language? Short answer: why not? Go is relatively easy to learn, not too verbose and there is a huge ecosystem of libraries which can be reused to avoid writing all the code from scratch.
UBOAT or CVE-2016-3955
19 August 2016UBOAT is a vulnerability in USB over IP framework, which is part of Linux kernel code. This framework was originally developed by USB/IP project and merged into mainline Linux kernel since version 3.17 and allows hardware to share connected USB devices over IP network: devices, connected to USB/IP server, appear on the client as if they were plugged in locally.