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NickTheGreek

Reflection attack

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The general attack outline is as follows:

  1. The attacker initiates a connection to a target.
  2. The target attempts to authenticate the attacker by sending it a challenge.
  3. The attacker opens another connection to the target, and sends the target this challenge as its own.
  4. The target responds to the challenge.
  5. The attacker sends that response back to the target on the original connection.

If the authentication protocol is not carefully designed, the target will accept that response as valid, thereby leaving the attacker with one fully authenticated channel connection (the other one is simply abandoned).

 

https://en.wikipedia.org/wiki/Reflection_attack

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