Shulou(Shulou.com)05/31 Report--

Today, I will talk to you about the example analysis of the interpretation of the terms of the space loophole on the website. many people may not understand it very well. in order to make you understand better, the editor has summarized the following content for you. I hope you can get something according to this article.

The invasion of the "blackmail virus" makes us have to take more precautions. For some common loopholes in the website space, we should have a certain understanding and understanding.

First, the website dark chain:

Noun explanation: "dark chain" is invisible website link, "dark chain" link in the site is very hidden, not easy to be detected by search engines in a short period of time. It is similar to friendly links and can effectively improve the PR value. Note, however, that the PR value is for individual pages, not for the entire site.

Harm: if the website is inserted into a large number of dark chains by malicious attackers, it will be punished by the search engine and reduce the weight value; being inserted into a large number of malicious links will have a negative impact on website visitors; it will assist malicious websites (which may be phishing sites, reactionary sites, gambling sites, etc.) to improve the ranking of search engine sites. Pages that can be inserted into dark links also mean that the content of the page can be tampered with.

Rectification suggestions: strengthen the website program security detection, timely repair website vulnerabilities; conduct a comprehensive test of the website code to see if there are any other malicious programs; it is recommended to reinstall the server and program source code to prevent deeply hidden malicious programs from being detected, so that attackers can still use the backdoor to enter after reinstalling the system.

Second, hang the horse on the web page:

Noun explanation: a web page hangs a horse by embedding a malicious program or link in a web page, causing the user's computer to trigger the execution of a malicious script when visiting the page, thus unknowingly jumping to the "releasing horse site" (refers to the network address that stores the malicious program, which can be a domain name or can also be directly used by the IP address) to download and execute the malicious program.

Harm: take advantage of IE browser vulnerabilities to let IE automatically download the Trojan horse that the hacker put on the website and run (install) the Trojan horse, that is, this web page can download the Trojan horse locally and run (install) the Trojan horse on the local computer. The whole process runs in the background. Once the user opens this web page, the download process and the running (installation) process will start automatically. Thus achieve the purpose of controlling the visitor's computer or installing malware.

Suggestions for rectification and reform: strengthen the security detection of the website program, repair the website loophole in time, and carry on the website code once.

Check comprehensively to see if there are any other malicious programs; it is recommended to reinstall the server and program source code to prevent deeply hidden malicious programs from being detected, so that attackers can still use the backdoor to enter after reinstalling the system.

3. SQL injection:

Noun interpretation: SQL injection is to deceive the server into executing malicious SQL commands by inserting SQL commands into the Web form to submit domain names or enter the query string requested by the page. Harm: database entries and tables may be viewed, modified, or deleted. A serious injection vulnerability could also remotely execute operating system commands as an ex-database user.

Rectification suggestion: the remedy is to clean up the user input. By validating user input to ensure that it does not contain dangerous characters, it is possible to prevent malicious users from causing the application to perform unplanned tasks, such as launching arbitrary SQL queries, embedding Javascript code to be executed on the client, running various operating system commands, and so on.

IV. Cross-site scripting:

Noun explanation: a cross-site scripting attack is a privacy violation that allows an attacker to obtain the credentials of a legitimate user and impersonate that user when interacting with a particular Web site.

Harm: it is possible to steal or manipulate customer sessions and cookie, which may be used to imitate a legitimate user, allowing hackers to view or change user records and perform transactions as that user.

Rectification suggestions: there are two main ways to deal with cross-site scripting: do not trust any input of users, try to use whitelist technology to verify input parameters, and escape the content provided by users during output.

After reading the above, do you have any further understanding of the example analysis of the interpretation of web space vulnerability terms? If you want to know more knowledge or related content, please follow the industry information channel, thank you for your support.

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