Offensive Security Cracking The Perimeter Pdf Download tamothn

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 . . however, network security has gotten a lot more complicated since then and many other means of access exist for an attacker. Today, pentesters need to find a way to penetrate all major divisions and limit the amount of information they must obtain in order to move deeper within the network. First, it is important to see how much time an attacker needs to compromise a target. After all, an external pentest doesn’t necessarily begin with a hack. However, they do need a method of getting into the target’s network from the outside. Whether it be social engineering, spear phishing, reading a DMZ (decentralized) environment, or other means, an attacker has to get past the first line of defense and gain access to a network or systems within the organization. Most organizations use a defense-in-depth approach with multiple layers of security. Let’s take a look at this in more detail. Defending Against an Attacker Network security is an interesting one, and pentesting has to fight against its own desires when trying to gain access to a network. Network administrators are trained to be cautious in their approach to security, but they often lack the knowledge to properly defend a network, or may not have the time to spend learning about security. This is where the defense-in-depth approach comes in. The idea behind the defense-in-depth approach is to provide multiple layers of security to prevent attackers from bypassing one layer to gain access to the next. This security should be complemented with operational procedures that aid security decisions and protocol configuration. For example, creating more than one user account for every user is a basic, but common, practice that may seem obvious, but is often overlooked. Defending Against an Attack This is the part of the external pentest where we can attack the first layer of defense: the organizational perimeter. An attacker can’t get into the target’s network if they can’t get through any of the layers of defense. In order to penetrate the organizational perimeter, pentesters need to have some understanding of how people are connected to the network. Do they connect to the network via a wireless network? A wired network? A VPN? No matter the protocol, a pentester needs to be able to locate, connect to, and compromise those access points. Let’s take a look at how we can utilize wireless networks as an example.

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