sql injection attack prevention

PHP XSS Attack prevention If you like a product title, you can use Strip_tags () filter to erase all HTML tags.If something like a product description, you can use the Htmlspecialchars () filter to escape the HTML tag. SQL injection prevents numeric type parameters, which can be coerced into shaping using (int)/intval

of error messages, then injected can be directly from the error message to get) URLs in the Web: http://www.xxx.com/Login.aspx?id=49 and user>0 First, the preceding statement is normal, with emphasis on and user>0, we know, User is a built-in variable for SQL Server whose value is the user name of the current connection, and the type is nvarchar. Take a nvarchar value compared with the number of int 0, the system will first try to convert the value

Recently, PHP + MYSQL programming has been involved. I learned a little about PHPSQL injection attacks, so I wrote this article to sum up my experience. In my opinion, the main cause of SQL injection attacks is the following two reasons: 1. the magic_quotes_gpc option in the php configuration file php. ini is disabled. 2. the developer does not check and escape t

Summarize the experience. In my opinion, the main cause of SQL injection attacks is the following two reasons: 1. The magic_quotes_gpc option in the php configuration file php. ini is disabled. 2. The developer does not check and escape the data type. But in fact, the second point is the most important. In my opinion, it should be the most basic quality for web programmers to check the data types entered by

Attack | Tutorials because the current SQL injection is very popular and the technology threshold is low attack means, and very practical, light can get some of the site's accounts, such as to get a movie site of the gold member of the account number, heavy use of its website building more intrusion into the entire ser

By enabling related options in the php. ini configuration file, you can reject most hackers who want to exploit the SQL injection vulnerability. After magic_quote_gpc = on is enabled, the addslshes () and stripslashes () functions can be implemented. In PHP4.0 and later versions, this option is enabled by default, so in PHP4.0 and later versions, even if the parameters in the PHP program are not filtered, t

identity must be verified again, but many programmers often ignore this. If attackers know the path and file name of these pages, they can bypass authentication and directly access the page. For example, you must log in through the login. asp page and go to the manage. asp page only after authentication. Attackers can directly access the management interface through http: // www. ***. com/manage. asp.Solution: confirm the identity at the beginning of these pages. For example, after the authenti

By enabling related options in the php. ini configuration file, you can reject most hackers who want to exploit the SQL injection vulnerability.After magic_quote_gpc = on is enabled, the addslshes () and stripslashes () functions can be implemented. In PHP4.0 and later versions, this option is enabled by default, so in PHP4.0 and later versions, even if the parameters in the PHP program are not filtered, th

This article illustrates the YII framework's approach to preventing SQL injection, XSS attacks, and csrf attacks. Share to everyone for your reference, specific as follows: The methods commonly used in PHP are: /* Anti-SQL injection, XSS attack (1)/function Actionclean

1. The nature of SQL injection attacks: Let the client pass past strings into SQL statements, and can be executed. 2. Every programmer must shoulder the responsibility of preventing SQL injection attacks. Talking about preventing SQL