Vulnerability Definition

In computer security, the word vulnerability refers to a weakness in a system allowing an attacker to violate the confidentiality, integrity, availability, access control and consistency of the system or its data and applications.

Vulnerabilities are the result of bugs or failures in the design of the system, although, in a broader sense, they can also be the result of the technological limitations themselves, because, in principle, there is no 100% safe system.Therefore there are theoretical vulnerabilities and real vulnerabilities (known as exploits).

Vulnerabilities in applications are usually corrected with patches, hotfixs or with version changes, while some others require a physical change in an information system.

The vulnerabilities are discovered very often in large systems, and the fact that they are published quickly throughout the internet (long before there is a solution to the problem), is a matter of debate.A vulnerability becomes more known, the more likely there are hackers who want to take advantage of them.

Some typical vulnerabilities are usually: * Stack overflows and other buffers.* Symlink races.* Errors in the validation of entries such as: SQL injection, bug in the format of strings, etc.* Sequence of sessions.* Execution of remote code.* XSS.

See: Computer security.

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Definition of Macrocomputer (macrocomputer)

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