code-injection

问题 I am attempting to @Inject a @SessionScoped bean into a Filter @WebFilter("/*") public class IdentityFilter implements Filter, Serializable { @Inject private LoginUser loginUser; ... where LoginUser is @SessionScoped The intention is for loginUser to represent the logged in user for the session. The problem is it appears that I am not always getting the loginUser from the current session, I am getting 'leakage' between sessions as one session's LoginUser object is being shared with another

问题 From https://en.wikipedia.org/wiki/Code_injection#Preventing_problems To prevent code injection problems, utilize secure input and output handling, such as: Using APIs that, if used properly, are secure against all input characters. Parameterized queries (also known as "Compiled queries", "prepared statements", "bound variables") allows for moving user data out of string to be interpreted. Additionally Criteria API[7] and similar APIs move away from the concept of command strings to be

问题 I am trying to replace a method in a plugin loader(Like Bukkit for Minecraft) during run-time. I cannot modify the assembly file directly in this instance. The whole purpose is to be able to tell when the methods are being called. And cancel them if necessary. Once my plugin is loaded I run the following code: public static void PluginLoaded() { replace(); } public static void replace() { MethodInfo oldMethod, newMethod; oldMethod = typeof(<other assembly>).GetMethod("<method name>",

问题 Is there any way to bind with provider which interprets target's annotation value in Google Guice? Example: bind(Resource.class) .annotatedWith(MyAnnotation.class) .toProvider(new MyProvider<MyAnnotation, Resource>{ public Resource get(MyAnnotation anno){ return resolveResourceByAnnoValue(anno.value()); } }); I want to initialize field of an Android Activity class by annotated binding. It should have to take multiple resources by it's unique Id. Original Way: public class TestActivity extends

问题 Here is the code in upload_processor.php : include_once 'functions.php'; $name = $_FILES['upload-image']['name']; $type = $_FILES['upload-image']['type']; $size = $_FILES['upload-image']['size']; $temp = $_FILES['upload-image']['tmp_name']; $error = $_FILES['upload-image']['error']; img_processor($temp, $error, $size) And here is functions.php : function img_processor($img_temp, $img_error, $img_size){ if($img_error===0){ if($img_size < 4194304){ if( $proc_img = @imagecreatefromjpeg($img_temp

问题 I am experimenting with Spring injection for the first time. I am surely forgetting something obvious but I don't know what it is. Under src/main/java, I have a package 'example' containing Hello, Animal, Cat. Under src/main/webapp/WEB-INF, I have web.xml and springapp-servlet.xml. When I deploy my app with Tomcat, I get a: javax.servlet.ServletException: Error instantiating servlet class example.Hello org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472) What

问题 So I'm planning on using shell_exec() to handle running a php script that sends an email. It's all working great, but I was just slightly concerned about the security implications of only using FILTER_VALIDATE_EMAIL to ensure injection can't occur. So, for example, I will be using something simlilar to this: $email=$_POST['email']; if(!filter_var($email, FILTER_VALIDATE_EMAIL)) { echo 'Nope ...'; } else { shell_exec("/usr/bin/php /var/www/mysite/includes/sendemail '" . $email . "'" > /dev

问题 I've inherited an existing ASP.Net MVC project that makes use of a Unity DI container. All of its registrations are defined in web.config. When a new service / class is introduced into the project, I create it along with an Interface, and then update the config file to handle the registration. For example : <unity xmlns="http://schemas.microsoft.com/practices/2010/unity"> <assembly name="UnityDi.Contracts" /> <assembly name="UnityDi.Domain" /> <assembly name="UnityDi.Services" /> <assembly

问题 I have implemented an IE extension using C++. Its function is to inject javascript in the webpage's head tag, whenever the extension icon is clicked. I have used execScript method for script injection. It works fine but when I refresh the webpage, or when I click on any link on the webpage, or when I enter another URL the injected script vanishes away. I don't want the script to vanish away, I want it to be persistent inside the web browser. How can I achieve that? I am new to IE extension

问题 This way lies madness, I know. I have an executable (the source code to which I do not have access) that I would like to extend via .NET. It's a native executable, so I would need to inject a CLR host in order to do this. My basic idea is to provide scripting-like functionality via a .NET language (C#, for example) and provide hooks in the target executable for the scripts to manipulate, and vice versa. I know I'll need to use various techniques to achieve this - DLL injection, some runtime