One of the most well-known web server security attacks is known as a buffer overflow. Basically, a buffer overflow takes place when a software application attempts to store more data in a static buffer than its capacity to store or manage…
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In this scenario, this extra data is used to corrupt and overwrite the available memory. As a result it allows an attacker to put in random actions on the web server or destroy the system completely. It is commonly seen that the majority of web applications fails to effectively avoid the actions inserted or performed by random code into the system which can only be performed with the administrator rights of the operating system. For instance, an attacker can insert an executable instruction like that , inside a legal web site form below the appearance of an HTTP (hypertext transfer protocol) request in an attempt to get access to that particular web server. However, if an attacker gets a success in deceiving security configuration, he/she can be able to get access to the /etc/passwd file as well as can get all files and, in the end, the usernames and passwords which are stored on the web server (Kennedy, 2005). In order to mitigate these security attacks, organizations can take following initiatives: First of all, an organization needs to recognize buffer overflows by putting huge values into header, form inputs, and cookie fields. They must implement effective techniques to stop illegal users from inserting unauthenticated code. They must authenticate the input field length. Cross-site Scripting (XSS) In this kind of attack a web application works as a source of help for launching an attack to an end user's browser by making use of the web browser of other web users who visit the page. In this scenario, an attacker develops and launches a web site that takes benefit of a cross-site scripting defect and a simple user can view this attacker’s web site such as by clicking on a link mentioned in an e-mail received from a friend and the attacker’s nasty program or that fake web site can then be opened on the user's computer. If an attacker gets a success in this attack then he/she can be able to get access to the end user's session token, spoof content to fool the user or attack the local machine (Kennedy, 2005). In order to mitigate these security attacks, organizations can take following initiatives (Kennedy, 2005): An organization must adopt strict measures to scan all the possible inputs in order that end-user data cannot be translated as scripted content. A variety of data integrity checks should be carried out on data before their distribution to make sure the data are sensible. If it is possible, limit all end-user input to alphanumeric content. Denial of Service Attacks DoS attack (denial of service) can be defined as an event that prevents un-authorized access to the resources or make interruption in those operations that are critical with time factor. Additionally, DoS attack is sometimes called distributed denial-of-service attack (DDoS attack). This sort of attacks (denial of service attack) may target users in an attempt to stop them from creating links on the network. However these connections may include outgoing transmission. In addition, a DoS attack may also target a whole corporation. In this scenario, it can stop incoming traffic or to prevent outgoing traffic towards network related applications. In this way this attack tries best to stop the victim from being usage of network links. Moreover, denial of service attack is straightforward in accomplishment as compared to gaining managerial access to a specific system from distant location. That’s why DoS attack gains popularity on the Internet (Chan et al., 2010) and (Tech-FAQ, 2011). DoS attacks can easily halt our computer machine or our network connection. However, it totally depends on the
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There are some users who create hurdles for others sometimes for fun purposes or to de-motivate users from working with a particular service or website. These people misuse the knowledge and worsen the reputation of certain organizations in the technological world.
This paper presents an overview of DoS attacks. This paper will discuss different types of DoS attacks. This paper will also outline the ways to deal with this threat. Denial of Service Attacks DoS attack (denial of service) can be defined as an event that prevents un-authorized access to the resources or make interruption in those operations that are critical with time factor.
This is not to say that there are no preventive measures but the preventive measures do not undermine the potency of DoS attacks.
Quite simply a denial-of-service attack attempts to make computer resources unavailable to its intended users. DoS attacks are usually targeted at major websites or services hosted on high-profile web servers such as banks, credit card payment gateways or even DNS root servers.
The main goal of Denial of Service or DOS attack is to deny valid Internet and Network users from the services of the target system or Network or server. It launches an attack that prevents the use of services that are offered to the legitimate and authenticated users by the Network.
The author provides some methods of protection. In passive methods radio frequency monitoring is used. The active systems can transmit signals to inquire the status of the network and also put in malicious data into the network to create interruptions. This is the most common methods and is on the rise since new abuse and tools emerge often.
In real life, however, the use of omissions, half truths, and outright falsehoods are part and parcel of most human endeavor. However, denial and deception (D&D) is resorted to as a systematic strategic and operational
It is a multinational company that serves customers from various countries the company was started in the 1930s and since then it has seen an improvement in technology, which has led to the realization of a challenge in the operation of the
9 Pages(2250 words)Research Paper
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