Ecommerce website security
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Web Site Security Issues - An Assessment
Alas, there are many ways in which web site security can be adversely affected. Security risks are ever present which impinge on Web servers and LANs (local area networks) on which Web sites reside, even by the regular use of a Web browser.
Web Masters are in the front line when handling the major challenges. As soon as a Web server is set up at a site, a porthole is made in the local area network through which anyone on the Internet can look. Of course, the majority of website visitors look at only what they're supposed to look at, but a number of them attempt to locate parts of the site that aren't designed to be visible to all and sundry. Nefarious visitors would like to do more than just look; they make an effort to unfasten the window and creep in. The damage intruders could inflict might be sheer vandalism, like changing the website's home page with theirs which might say or put on view anything at all, or it could be larceny, such as stealing a customers or orders list.
It's hard to avoid the probability that convoluted software has bugs. No matter how systematically it's tested, there is by and large a certain order of events or user actions, even though it may be rare, which causes a failure. Software bugs produce gaps in system security. A Web server is convoluted software which can quite possibly include a security opening.
It's not only the complexity of a Web server which can cause a problem, but also its open architecture. Consider a CGI script as an illustration. A CGI script may be run at the server in answer to a remote call from a client. This could be a request from an application or even the click of a button in a browser. If the CGI script includes a bug, there's a risk of a security breach.
Network Administrators also have to take on problems from Web servers due to the danger they pose to the security of the local area network. Whereas there must be no unauthorised incursions, access must be granted to web site visitors. This means that access to the network should be controlled. The Administrator therefore needs to perform a delicate balancing act. Even the most robust firewall can be undermined if the Web server is configured poorly. By the same token, normal use of the web site can be not viable if the firewall is configured poorly. Attaining a perfect solution is still more tricky if an intranet forms an element of the system. Typically, the Web server in that case has to be configured to distinguish and validate domains and user groups, which are liable to have varying permission levels and access privileges.
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The majority of people using a browser to surf the Internet trust that they are doing so anonymously and safely. It is not so. Web browsers are able to process self-contained programs on the local computer that are resident on a web site. Current browsers display a notice and request authorization to execute those programs. Identified generally as "active content", e.g., ActiveX controls or Java applets, these programs, if malicious, could easily inject a virus or other dangerous software on the browser user's machine. When it's in the system it can cause all kinds of havoc and may be very tricky to remove.
This is also a worry for Network Administrators. Web browsers provide a means for potentially malicious software to filter all the way through the local area network's firewall. After it is in the network, the damage it can inflict can vary from clandestinely stealing sensitive information to motiveless carnage.
Aside from the matters involving active content, simply browsing the Net leaves a trail of the user's activities in the browser's history. This could be utilized by websites and installed software programs to determine a precise report of the user's behavior and interests. Despite the fact that this may be frowned upon as an invasion of privacy by some, it can be positively effective by showing related subject matter immediately, so relieving the user of the task of searching for it.
Confidentiality is a question that worries not only browser users but also Web Masters and Network Administrators for the duration of the actual transmission of data by means of the Net. TCP/IP (Transmission Control Protocol/Internet Protocol) is the basic language of communication for the Internet. When it was formed, security wasn't the principal aspect of its design. Both network and Internet transmissions should therefore not be considered as necessarily confidential. Every time the browser on a local PC downloads a confidential file from the remote Web server, or the browser user fills in a form with private data and clicks the 'Submit' button, the transmitted information can be intercepted without consent.
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