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https://owasp.org/www-community/vulnerabilities/Expression_Language_Injection
If the container provided EL interpreter does not support static class methods ( java.lang.Runtime.getCurrentRuntime().exec() ), an attacker can use a URLClassLoader to load remote code. Spring Eval Tag. Spring Framework provides a JSP tag that interprets Spring Expression Language (SpEL). The following code would be vulnerable:
https://docs.spring.io/spring-framework/docs/3.2.8.RELEASE/javadoc-api/org/springframework/web/util/ExpressionEvaluationUtils.html
Check whether Spring's JSP expression support is actually active. Note that JSP 2.0+ containers come with expression support themselves: However, it will only be active for web applications declaring Servlet 2.4 or higher in their web.xml deployment descriptor.. If a web.xml context-param named "springJspExpressionSupport" is found, its boolean value will be taken to decide whether this ...
https://docs.spring.io/spring-framework/docs/3.0.x/javadoc-api/org/springframework/web/util/ExpressionEvaluationUtils.html
Check whether Spring's JSP expression support is actually active. Note that JSP 2.0+ containers come with expression support themselves: However, it will only be active for web applications declaring Servlet 2.4 or higher in their web.xml deployment descriptor.
https://www.concretepage.com/spring/expression_support_spring
Feb 11, 2013 · Spring provides expression language support in XML and Annotation based both. The format of expression language is #{ <expression string> }. XML Based Spring Expression Language Support Find the random number in spring by spring expression language support. ExpressionVO.java
https://www.javatpoint.com/spring-expression-language-tutorial
Spring Expression Language or SPEL Tutorial with examples, spring aop tutorial, spring dependency injection, spring mvc tutorial, spring jdbctemplate, spring hibernate, spring data jpa, spring remoting ... There are many expression languages available such as JSP EL, OGNL, MVEL and JBoss EL. SpEL provides some additional features such as method ...
https://spring.io/projects/spring-boot
Spring Boot makes it easy to create stand-alone, production-grade Spring based Applications that you can "just run". We take an opinionated view of the Spring platform and third-party libraries so you can get started with minimum fuss. Most Spring Boot applications need very little Spring configuration.
https://stackoverflow.com/questions/5322632/spring-expression-language-spel-with-value-dollar-vs-hash-vs
Immediate evaluation means that the expression is evaluated and the result returned as soon as the page is first rendered. ... You're talking about a Java EE web technology while the question was about spring config using Spring ELs. And then, JSP do not use SpEL, ... Difference between Spring Expression Language (SpEL) and Unified Expression ...
https://www.journaldev.com/2064/jsp-expression-language-el-example-tutorial
JSP Expression Language Important Points. EL expressions are always within curly braces prefixed with $ sign, for example ${expr} We can disable EL expression in JSP by setting JSP page directive isELIgnored attribute value to TRUE.; JSP EL can be used to get attributes, header, cookies, init params etc, but we can’t set the values.
https://stackoverflow.com/questions/15111260/how-to-show-values-from-property-file-in-jsp-in-a-spring-mvc-app
But what if I want to use a property in a JSP file and bypass the controller. Meaning I don't want the value type being passed from the controller to the JSP as a model …
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