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Also, analyzing traffic patterns can aid in determining the content of communications for example, terminal emulation or instant messaging might cause short bursts of activity, whereas steady streams of activity might be generated by videoconferencing. Eavesdroppers might be able to gain information by monitoring and noting which parties communicate at particular times. A possible threat against confidentiality is network traffic analysis. The SSID is clearly not intended as an access control feature.
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The security provided by the default connection means is unacceptable all it takes for a host to connect to your system is a Service Set Identifier (SSID) for the access point (which is a name that is broadcast in the clear) and, optionally, a MAC Address.
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Neither of these alternatives are secure. Typically there are two means by which to validate the identities of wireless devices attempting to connect to a WLAN: open-system authentication and shared-key authentication.
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Ĭonfidentiality: Ensure that unauthorized parties cannot read communication.Īccess control: Restrict the rights of devices or individuals to access a network or resources within a network.Some common security objectives for WLANs are as follows: This is accomplished through a combination of security features built into the wireless networking standard. Like other wireless technologies, WLANs typically need to support several security objectives. One of the most active standards organizations that address wireless networking is the Institute of Electrical and Electronics Engineers (IEEE). Since the beginning of wireless networking, many standards and technologies have been developed for WLANs. WLANs are typically used by devices within a fairly limited range, such as an office building or building campus, and are usually implemented as extensions to existing wired local area networks to provide enhanced user mobility. A wireless local area network (WLAN) is a group of wireless networking nodes within a limited geographic area that is capable of radio communications. Wireless networking enables devices with wireless capabilities to use information resources without being physically connected to a network. Finally, you will put together a basic tool kit for wireless penetration tests. Next, you will gain a basic understanding of the different types of attacks that you are likely to use. a wired network, and some of the stumbling blocks you will need to overcome. Additionally, you will begin to understand the difference between performing a penetration test on a wireless network vs. You will learn the history of wireless security and the vulnerabilities that plague it. Later in this chapter, you will gain a basic understanding of the principles of performing a penetration test on a wireless network. In this chapter, we discuss WarDriving and how it applies to a wireless penetration test. Because of these insecure deployments, penetration testers are often called in to determine what the security posture of an organization's wireless network is, or to verify that a company has deployed its wireless network in a secure fashion. Insecure wireless networks are found in people's homes and in large corporations. However, while wireless networking is convenient, it is not always deployed securely. From home networks to enterprise-level wireless networks, people are eager to take advantage of the freedom and convenience that wireless networking promises. Wireless networking is one of the most popular and fastest growing technologies on the market today. Brian Baker, in WarDriving and Wireless Penetration Testing, 2007 Introduction