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资源说明：Extender module for BurpSuite to decode and re-encode JAVA Object Serialization for security testing
# serialization.rb - User Guide ## Overview The serialization.rb is a BurpSuite extension that allows efficient testing of business login of Java applications utilizing serialized communication. Installation instructions below describe the dependencies and user guide section gives a brief glimpse to the added functionality. ## Installation These installation instructions are for Debian but should work the same on Ubuntu. For other distributions you will need to adapt them appropriately. First some dependencies must be met: `$ sudo apt-get install jruby` `$ sudo jruby -S gem install buby` `$ sudo jruby -S gem install rbkb` `$ sudo apt-get install libxstream-java` `$ mkdir lib` `$ ln -s /usr/share/java/xstream-1.3.1.jar lib/` `$ ln -s /opt/burp/burpsuite_pro_v1.5rc3.jar burp.jar` JRuby that is installed first is a Java implementation of Ruby allowing us to write Java extensions in Ruby and access Java APIs. First of the used gems, buby, provides access to BurpSuite extender API and second is Ruby BlackBag, a ruby helper library for penetration testing and reverse engineering (hexdump is probably the only feature currently used). The XStream library serializes and de-serializes the data being transmitted between client app and server. And naturally BurpSuite is also needed. Once everything is set up, everything should start with following command: `$ jruby serialization.rb` ## User Guide Once BurpSuite is loaded with the serialization extender module properly, there will be some extra messages in the Alerts tab. These inform that Jruby::Buby registered a callback and that three MenuItem handlers are registered. ### Menus Looking for example at the repeater menu, you can see new menu items there provided by serialization.rb as shown on following screen capture:  New items are "Reload JARs" that will load all .jar files from the lib directory. "Drop to IRB" drops the starting shell to IRB allowing modifications and inspection of internal objects on-the-fly. Finally the "Reload serialization.rb" will reload the source file of serialization.rb thus enabling us to do modifications to the actual sources of serialization.rb and get them into use easily. ### Proxy The basic functionality of Proxy tool is quite simple. The serialization.rb shows an XML version of the request as shown in the screenshot from History tab. You can intercept and modify the request normally. The additional information in the History tab is the original request and edited response showing the serialized format. However, this information is not that interesting to us normally.  ### Intruder Following screen shot shows the XML format of a request (as would be also seen in Proxy tool). There is an additional header field X-Burp: Decoded shown in the request that tells our serialization module to re-serialize the data before sending it out (this header is stripped of from the request that is actually sent out). 
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