Questions tagged [covert-channel]

Covert channels are a stealthy medium of data transfer using common network protocols. This technique attempts to bypass network security protections like firewalls and IDS

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Has hackers ever used a microarchitectural side channel to launch an attack?

I'm a student of computer architecture and I just got through a class on Hardware Security. We spent a considerable amount of time learning about microarchitectural side channels, reading papers on ...
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Does DSR or L3DSR allow for a secret back channel between hosts? How can it be stopped?

This Serverfault question describes how a load balancer can embed data that will be round-tripped back to the originating node. Traditionally DSR can't exceed the boundaries of a broadcast domain. ...
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What are the main differences between a covert timing channel and a covert storage channel?

I am trying to find the differences between a covert timing channel and a covert storage channel in terms of detectability, performance, features, and any other advantages and disadvantages. Is ...
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