One way that it is commonly attacked is by comparing two streams that used cipher-texts with identical key streams. There are several ways that WEP vulnerabilities can be exploited. The cipher uses a short key to generate a ‘random’ key stream, but this technology has been exploited for years. First off, you should understand that WEP is a security protocol that uses RC4 security which is a type of stream cipher. WEP Vulnerabilities vs WPA Vulnerabilitiesīefore we begin the WEP cracking demonstration, you should have a general understanding of the protocol, its vulnerabilities, and how they differ from WPA and WPA2. Instead, we are going to monitor wireless data and capture packets to deduce the key based on some well-known vulnerabilities.
In addition, you should note that we are not going to be taking advantage of a handshaking and reconnection flaw and performing a dictionary-based attack as we did with WPA. However, WEP is a different protocol altogether, so past starting the software on a wireless interface and performing the dumps, the process is a little different. We will be using the aircrack-ng software to facilitate the attack from a Kali Linux installation, but I wanted to point out a few caveats, warnings, and explanations before we dig into the demonstration.įirst of all, you should note that some of the attack process is similar to cracking the WPA and WPA2 Wi-Fi protocols. Today we are going to take a closer look at the vulnerabilities in the WEP (Wired Equivalent Privacy) protocol and see how to exploit those vulnerabilities and how hackers can gain access to a Wi-Fi network they don’t already have access to.
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