OpenVAS (Open Vulnerability Assessment Scanner, originally known as GNessUs) is the scanner component of Greenbone Vulnerability Management (GVM), a software framework of several services and tools offering vulnerability scanning and vulnerability management.[2]
Greenbone Vulnerability Manager began under the name of OpenVAS, and before that the name GNessUs, as a fork of the previously open sourceNessus scanning tool, after its developers Tenable Network Security changed it to a proprietary (closed source) license in October 2005.[3] OpenVAS was originally proposed by pentesters at SecuritySpace,[4] discussed with pentesters at Portcullis Computer Security[5] and then announced[6] by Tim Brown on Slashdot.
There is a daily updated feed of Network Vulnerability Tests (NVTs). As of January 2019[update], there were over 50,000 NVTs.[8]
Documentation
The OpenVAS protocol structure aims to be well-documented to assist developers. The OpenVAS Compendium is a publication of the OpenVAS Project that delivers documentation on OpenVAS.