New Rails book "Demystifying Rails" released

New Rails book will suit for experienced developers
23 June 2017   2469

A dynamic, open source programming language with a focus on simplicity and productivity.

Ruby on Rails

Ruby on Rails (RoR) - a framework written in the Ruby programming language.

Launch School, popular online learning portal, recently released new book called "Demystifying Rails".

Demystifying Rails
Demystifying Rails

Book was under construction for a year. It is written for experienced web coders who want not just to get familiar with Rails, but to understand how all this stuff works together. As someone can suggest, this is not a newbie tutorial, but a solid materiel for skilled developers. Book is a part of a 301 course at Launch School.

It's a journey "under the hood" of RoR framework to see how web application development process looks like without Rails. It will help to understand why frameworks and especially Rails exists. Reader will see how it is to create web application without a framework. This book is written to show the developers how the "life" is without Rails.

Also, you can have more info about another Ruby on Rail tutorials.

Book is free and can be read here at LaunchSchool

Ruby and Rails to Get New Updates

Six vulnerabilities in the RubyGems package management system are now fixed and three in Rails framework
14 March 2019   361

There are corrective versions of the Ruby 2.6.2 and 2.5.4 programming language, which eliminate six vulnerabilities in the RubyGems package management system:

  • CVE-2019-8324: the ability to execute code when installing an untested package (an attacker can place the code on the gemspec and this code will be executed via a call to eval to ensure_loadable_spec at the verification stage before installation);
  • CVE-2019-8320: the ability to delete directories through manipulations with symbolic links when unpacking tar files;
  • CVE-2019-8321: the ability to substitute escape sequences through the handler Gem :: UserInteraction # verbose;
  • CVE-2019-8322: the ability to substitute escape sequences through the command "gem owner";
  • CVE-2019-8323: Ability to substitute escape sequences in the API handler (Gem :: GemcutterUtilities # with_response);
  • CVE-2019-8325: The ability to substitute escape sequences through error handlers (Gem :: CommandManager # run calls alert_error without escaping characters).

In addition, an update was provided to the Rails,,, 5.2.2 framework. and 6.0.0.beta3 with the elimination of three vulnerabilities:

  • CVE-2019-5420 - potentially allows you to remotely execute your code on the server, when Rails is running in Development Mode. If there is information about the attacked application, you can predict the automatically generated mode token for developers, knowledge of which allows you to achieve the execution of your code;
  • CVE-2019-5418 is a vulnerability in the Action View that allows you to get the contents of arbitrary files from the server's file system by sending a specially crafted HTTP Accept header if the code in the "render file:" handler is present.
  • CVE-2019-5419 - DoS-vulnerability in Action View (MODULE / COMPONENT), allowing to achieve 100% load on the CPU through manipulations with the contents of the HTTP-header Accept;