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In computing, the '''Java Debug Wire Protocol''' ('''JDWP''') is a [[communication protocol]] which is part of the [[Java Platform Debugger Architecture]].<ref>{{Cite book|title=Software visualization: international seminar, Dagstuhl Castle, Germany, May 20-25, 2001 : revised papers|date=2002|publisher=Springer|others=Stephan Diehl|isbn=978-3-540-45875-3|location=Berlin|pages=185|oclc=50589687}}</ref> It is used for communication between a [[debugger]] and the [[Java virtual machine|Java Virtual Machine]], which it [[debug]]s. It allows to debug processes on a different computer. It can work over a [[network socket]] or through [[shared memory]].

The protocol is implemented in the [[software library]] <code>libjdwp</code>.<ref>{{Cite book|last=Topley|first=Kim|title=J2ME in a nutshell: a desktop quick reference|date=2002|publisher=O'Reilly|isbn=9780596002534|edition=1st|location=Beijing|pages=235|oclc=52355507}}</ref> It can be activated using the <code>-Xrunjdwp</code> parameter of [[Java (language)|Java]].

[[Metasploit]] includes a module for JDWP. It can exploit it using various scripts, which have functions such as [[Code injection|injecting]] a Java class that executes a [[shell (computing)|shell]] command, returns [[operating system]] details or injects an arbitrary class.

== References ==
{{Reflist}}

== External links ==
* [https://docs.oracle.com/javase/7/docs/technotes/guides/jpda/jdwp-spec.html Java Debug Wire Protocol - Java SE Documentation]
* [https://ioactive.com/hacking-java-debug-wire-protocol-or-how/ Hacking the Java Debug Wire Protocol] by [[IOActive]]
* [https://patents.google.com/patent/US20110138359A1/en Patent US20110138359A1 - Modified implementation of java debug wire protocol]
* [https://blog.aquasec.com/jdwp-misconfiguration-container-images JDWP Misconfiguration in Container Images and K8s]

[[Category:Debugging]]
[[Category:Communications protocols]]
[[Category:Java (programming language)]]

{{Programming-software-stub}}

Java Debug Wire Protocol - Revision history

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