Explaining Security Lingo
This post is aimed to clarify certain terms often used in the security community. Let’s start with the easiest one: vulnerability. A vulnerability is a flaw in a selected system that allows an attacker to compromise the security of that particular system. The consequence of such a compromise can impact the confidentiality, integrity, or availability of the attacked system (these three aspects are also the base metrics of the CVSS v2 scoring system that are used to rate vulnerabilities). ISO/IEC 27000, IETF RFC 2828, NIST, and others have very specific definitions of the term vulnerability, each differing slightly. A vulnerability’s attack vector is the actual method of using the discovered flaw to cause harm to the affected software; it can be thought of as the entry point to the system or application. A vulnerability without an attack vector is normally not assigned a CVE number.
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