PHP Manual
Security
Request Injection Attacks

Request Injection Attacks

If you are passing $_GET (or $_POST) parameters to your queries, make sure that they are cast to strings first. Users can insert associative arrays in GET and POST requests, which could then become unwanted $-queries.

A fairly innocuous example: suppose you are looking up a user's information with the request http://www.example.com?username=bob. Your application creates the query $q = new \MongoDB\Driver\Query( [ 'username' => $_GET['username'] ]).

Someone could subvert this by getting http://www.example.com?username[$ne]=foo, which PHP will magically turn into an associative array, turning your query into $q = new \MongoDB\Driver\Query( [ 'username' => [ '$ne' => 'foo' ] ] ), which will return all users not named "foo" (all of your users, probably).

This is a fairly easy attack to defend against: make sure $_GET and $_POST parameters are the type you expect before you send them to the database. PHP has the filter_var() function to assist with this.

Note that this type of attack can be used with any database interaction that locates a document, including updates, upserts, deletes, and findAndModify commands.

See » the main documentation for more information about SQL-injection-like issues with MongoDB.

php swoole the swoole http request class php cubrid 函数 close the request handle php db++ 函数 request write lock on relation php iis 函数 sets directory security php postgresql 函数 sends a request to execute a prepared statement with given parameters without waiting for the result s php postgresql 函数 sends a request to create a prepared statement with the given parameters without waiting for completion php security request injection attacks php security script injection attacks php snmp configures security related snmpv3 session parameters php soapclient returns the soap headers from the last request php solrclient sends a raw update request php swoole http client send post http request to the remote server.php xsltprocessor get security preferences php yaf request abstract the getactionname purpose php yaf request abstract the getbaseuri purpose php yaf request abstract the isoptions purpose php yaf request abstract the ispost purpose php yaf request http 返回cookie变量 php yaf request http the getfiles purpose php yaf route interface route a request