Shulou(Shulou.com)06/02 Report--

In this issue, the editor will bring you about whether there will be loopholes in the cloud virtual host. The article is rich in content and analyzes and narrates it from a professional point of view. I hope you can get something after reading this article.

There may be loopholes in the cloud virtual host, in the process of host leasing, no one can ensure that their website will never have loopholes, and vulnerabilities must be repaired in time, otherwise it is easy to cause the server to be attacked. Common vulnerabilities in the server:

Mobile code is used

Disable Javascript and Java applets in the browser. The use of NET, Flash, or ActiveX seems like a good idea, as they all actively execute scripts or code on the computer, but if these functions are disabled, many websites cannot be read.

This opens the door for coded Web applications that accept user input and use Cookies, just as in cross-site scripting (XSS). In this case, some Cookies Web applications that need to be visited with other open pages will appear disordered. Any Web application (blog, Wikis, talk about) that accesses user input can inadvertently accept malicious code that can be returned to other users.

Server gap

Due to gaps and server handling equipment errors, IIS and Apache network servers are often used by hackers to invade.

A gap in the desktop

There are many gaps in the desktop, such as our common browsers, especially when users do not often download update patches, which are often used by hackers. Through these applications, hackers can actively download illegal software code, also known as hidden download, without the consent of the user.

Widespread access to HTTP

It is necessary to use Web to access the Internet, and all computing machines can access HTTP and HTTPS through firewalls (TCP ports 80,443). It can be assumed that all accounting machines can access the external network. Many sequences access the Internet through HTTP, such as IM and P2P software. In addition, the hijacked software opens a channel to send botnet instructions.

Using embedded HTML in email

Because the SMTP email gateway restricts the sending of emails to a certain extent, hackers no longer often send malicious code in emails. Instead, the HTML in the email is used to obtain malware code from the Web, and the user can be completely unaware that a request has been sent to the site.

Is there a loophole in the cloud virtual host shared by Xiaobian? if you happen to have similar doubts, you might as well refer to the above analysis to understand. If you want to know more about it, you are welcome to follow the industry information channel.

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