20 introductory Nmap command examples for the technology professional

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I’m not going to attempt to cover what Nmap is and what it can do. Rather the author states: Nmap (“Network Mapper”) is a free and open source (license) utility for network discovery and security auditing. Many systems and network administrators also find it useful for tasks such as network inventory, managing service upgrade schedules, and monitoring host or service uptime. Nmap uses raw IP packets in novel ways to determine what hosts are available on the network, what services (application name and version) those hosts are offering, what operating systems (and OS versions) they are running, what type of …

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WiFi WPA2 Hacking 101

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I want to introduce the idea of breaking WPA2 security by obtaining the password defined by a given network. The reason I am writing about this is both for educational reasons and from the perspective of strengthening security. In many ways I wish I could say that I surprised about just how easy it is cracking a WiFi password, but many people I talk with seem to think that Wi-Fi Protected Access II (WPA2) itself is he gatekeeper. Of course this is not true and just like anything else where a password is involved the password itself is the gatekeeper. …

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How To Defend Against Cross Site Scripting With Microsoft .NET 4.5 AntiXss

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One of the most common threats to websites is cross site scripting (XSS) which is the idea that a malicious user is attempting to load content into your website. Examples include JavaScript and HTML. This attack is carried out typically via a form input or query string. XSS can result in very nasty results which include content modification or worse hijacking user account information. If you’re asking yourself how you can possibly reduce the likelihood of this threat, the answer is simple. Encode and never trust user input under any circumstance. It is not that all users are attackers, but …

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Down In The Weeds With sqlmap

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Here I plan to take a look at sqlmap and the capabilities that it provides in order to identify weakness in security so that this weakness can be addressed before a breach occurs. The tool sqlmap, like many tools, can both be used for good and bad depending upon the role of the individual. I approach this tool as a mechanism to perform penetration testing in order to uncover the vulnerabilities that otherwise may go unnoticed. If you are not sure what sqlmap is the best way I can define this tool is that it is an open source penetration …

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Cookie Poisoning: Not Your Grandmother’s Cookies

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Cookie poisoning is a recognized technique mainly for achieving impersonation, breach of privacy, or even modification that could result in lost bossiness through manipulation of session cookies, which maintain the identity of the client. By poisoning these cookies, an attacker can impersonate a valid client, and thus gain information and perform actions on behalf of the victim. The ability to poison session cookies stems from the fact that the tokens are not generated in a secure way. Vulnerabilities in web applications are now the largest vector of enterprise security attacks. Stories about exploits that compromise sensitive data frequently mention culprits …

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A Word To The Wise: Secure Your Data Please

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Every day that I continue to use the Internet is another day that becomes more and more painfully clear to me that people or organizations have no idea just how vulnerable they are to possible attacks. Just recently the Washington Post reported that China is likely behind a cyber attack that resulted in obtaining access to a confidential report that contains details on two dozen of advanced weapon system owned by the United States. Now it does not take a rocket scientist to understand the severity of this situation. You may be asking yourself how can I protect myself, employees, networks, …

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