Monday Presentation

A paper detailing a new attack vector on TLS was released on December 30. The attack, known as the HTTPS Bicycle Attack, is able to determine the length of specific parts of the plain-text data underneath captured TLS packets using a side-channel attack with already known information. The attack has a few prerequisites but could be applied in a real world scenario, and is completely undetectable due to its passive nature.

The HTTPS Bicycle attack can result in the length of personal and secret data being exposed from a packet capture of a user's HTTPS traffic. For example, the length of passwords and other data (such as GPS co-ordinates) can be determined simply by analyzing the lengths of the encrypted traffic.



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