CVE-2017-10784

El código de autenticación Basic en la biblioteca WEBrick en Ruby en versiones anteriores a la 2.2.8, 2.3.x anteriores a la 2.3.5 y 2.4.x hasta la 2.4.1 permite que atacantes remotos inyecten secuencias de escape del emulador del terminal en su registro y que puedan ejecutar comandos arbitrarios mediante un nombre de usuario manipulado.

It was found that WEBrick did not sanitize all its log messages. If logs were printed in a terminal, an attacker could interact with the terminal via the use of escape sequences.

Ruby is an extensible, interpreted, object-oriented, scripting language. It has features to process text files and to perform system management tasks. Security Fix: It was discovered that the Net::FTP module did not properly process filenames in combination with certain operations. A remote attacker could exploit this flaw to execute arbitrary commands by setting up a malicious FTP server and tricking a user or Ruby application into downloading files with specially crafted names using the Net::FTP module.