Man in the middle

Replay attack

Denial of service
Replay attack Ataque Mitm Replay-Angriff Attaque par rejeu Ataque de REPLAY

Replay attack

"Replay" attacks are "Man in the middle" attacks that involve intercepting data packets and replaying them, that is, resending them as is (with no decryption) to the receiving server.

As a result, depending on the context, the hacker can benefit from the user's rights. Imagine a scenario in which a client sends an encrypted user name and password to a server to log in. If a hacker intercepts the communication (using monitoring software) and replays the sequence, he will obtain the same rights as the user. If the system enables password modification, he could even replace it with another, depriving the user of his access.

Last update on Thursday October 16, 2008 02:43:15 PM.This document entitled « Replay attack » from Kioskea (en.kioskea.net) is made available under the Creative Commons license. You can copy, modify copies of this page, under the conditions stipulated by the licence, as this note appears clearly.

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