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Ruby on Rails XML Processor YAML Deserialization Scanner

This module attempts to identify Ruby on Rails instances vulnerable to an arbitrary object instantiation flaw in the XML request processor.

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Module Name



  • hdm <x [at]>
  • jjarmoc




Module Options

To display the available options, load the module within the Metasploit console and run the commands 'show options' or 'show advanced':

msf > use auxiliary/scanner/http/rails_xml_yaml_scanner msf auxiliary(rails_xml_yaml_scanner) > show actions ...actions... msf auxiliary(rails_xml_yaml_scanner) > set ACTION <action-name> msf auxiliary(rails_xml_yaml_scanner) > show options and set options... msf auxiliary(rails_xml_yaml_scanner) > run

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