Software security is a nonfunctional attribute that directly affects product quality. Testing non-functional requirements to verify their performance, as it is done with the functional requirements, is a tedious task. As an alternative to this problem, tools that automatically or semi-automatically perform tests of different types of systems have been developed. The aim of this paper is to identify existing software tools related to testing safety. To achieve this objective a study of the state-of-the-art tools used for security testing is done from 2010 to date.