Website security test tools
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Examining Web Site Security Concerns
It's unfortunate, but there are several ways in which website security can be undermined. For example, security hazards are ever present that affect Web servers and LANs (local area networks) on which Web sites reside, even by the customary use of a Web browser.
Web Masters shoulder the responsibility when dealing with the critical risks. As soon as a Web server is installed at a site, a porthole is established in the local area network through which anyone who's using the Internet can look. Of course, nearly all web site visitors look at only what they're meant to see, but some endeavor to locate areas of the site that aren't meant to be detectable by the public. Fraudulent visitors would like to go further than just look; they make an attempt to unbolt the window and sneak inside. The harm intruders could cause might be sheer vandalism, like changing the website's home page with one of theirs which could say or show anything at all, or it might be robbery, such as gaining possession of a customers or sales list.
It's hard to avoid the virtual certainty that intricate computer software includes bugs. No matter how comprehensively it's tested, you can find as a rule a certain permutation of events or user actions, even though it may be rare, which creates a fault. Computer software bugs give rise to breaches in system security. A Web server is convoluted software that can very easily include a security gap.
It is not only the intricacy of a Web server that may trigger a glitch, but also its open architecture. Consider a CGI script as a case in point. A CGI script can be run at the server in reply to a remote call from a client. This could be a request from a program or even the click of a button in a browser. If the CGI script includes a bug, there is a risk of a security breach.
Network Administrators also have to handle problems from Web servers by reason of the threat they pose to the security of the local area network. Although there ought to be no unauthorized intrusions, admission must be granted to web site visitors. This means that access to the network should be regulated. The Administrator therefore has to perform a delicate balancing act. Even the most robust firewall can be undermined if the Web server is configured badly. By the same token, normal use of the website may be unachievable if the firewall is configured badly. Arriving at an ideal solution is even more difficult if an intranet is an element of the system. Normally, the Web server then needs to be configured to recognise and validate domains and user groups, which are likely to have differing permission levels and access rights.
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Almost anyone using a browser to surf the Web think that they are doing it secretly and in safety. This is not correct. Web browsers may execute self-contained software on the client machine which are hosted by a website. Modern browsers show a caution and ask consent to execute these kinds of programs. Known commonly as "active content", e.g., ActiveX controls or Java applets, these programs, if malicious, can easily inject a virus or other hazardous software on the browser user's computer. When it is in the system it can cause all kinds of damage and can be extremely difficult to get rid of.
This is also a concern for Network Administrators. Web browsers make available a means for potentially malicious software to seep through the local area network's firewall. As soon as it is in the system, the harm it might inflict can range from stealthily stealing private information to meaningless carnage.
Besides the problems involving active content, merely browsing the Web records a trail of the user's activities in the browser's history. This can be used by websites and installed programs to determine a precise profile of the user's behavior and preferences. While this may be thought of as an invasion of privacy by some people, it can be beneficial by offering appropriate content right away, thus relieving the user of the job of searching for it.
Confidentiality is a subject that worries not just browser users but also Web Masters and Network Administrators in the actual transmission of information by means of the Web. TCP/IP (Transmission Control Protocol/Internet Protocol) is the fundamental language of communication for the Net. When it was created, security was not the most important factor of its blueprint. Both network and Internet transmissions should therefore not be thought of as as necessarily confidential. Whenever the browser on a local PC downloads a confidential document from the remote Web server, or the browser user completes a form with private data and clicks the 'Submit' button, the transmitted data may be intercepted without authorization.
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