OSI stack security: Layer 2-physical layer security threats

In this topic, we will discuss network security from the perspective of OSI hierarchy. We will study the OSI stack in depth from the physical layer to the application layer. Starting from analyzing vulnerabilities at each layer, this paper assumes the various possibilities of these vulnerabilities and discusses security defense measures at each network layer. After discussing all the technical aspects, we did not forget the impact of "people" on network security factors. Therefore, we expanded the "artificial layer" based on the OSI Layer-7 model ".

 

In this topic, we will discuss network security from the perspective of OSI hierarchy. We will study the OSI stack in depth from the physical layer to the application layer. Now let's start with physical layer security.

 

I am often asked about the relationship between physical layer security and the logical network of IT administrators. My answer is: "It is related to everything in the Logical Network !" I think there is no physical layer security. Next, let's see why this is the case.

 

1. Podslurping

 

Are your employees listening to music and working with iPod? This may sound insignificant and may be related to the Podslurping threat.

 

Abe Usher has written such a controversial program to prove the dangers of iPod and other large-capacity storage devices. It is possible that one of your cleaning staff takes the iPod and looks as usual to do his evening work. But when everyone leaves, the trusted employee quickly used Podslurp to search for subdirectories of all target computers from one system to another to search for Word documents, PDF files, and HTML files, and other text files containing sensitive information. Finally, the employee left with 30 GB or more sensitive private information.

 

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