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OpenMRS Java Deserialization RCE

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OpenMRS Java Deserialization RCE



OpenMRS is an open-source platform that supplies users with a customizable medical record system. There exists an object deserialization vulnerability in the `webservices.rest` module used in OpenMRS Platform. Unauthenticated remote code execution can be achieved by sending a malicious XML payload to a Rest API endpoint such as `/ws/rest/v1/concept`. This module uses an XML payload generated with Marshalsec that targets the ImageIO component of the XStream library. Tested on OpenMRS Platform `v2.1.2` and `v2.21` with Java 8 and Java 9.


  • Nicolas Serra
  • mpgn
  • Shelby Pace




x86, x64


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 exploit/multi/http/openmrs_deserialization
msf exploit(openmrs_deserialization) > show targets
msf exploit(openmrs_deserialization) > set TARGET < target-id >
msf exploit(openmrs_deserialization) > show options
    ...show and set options...
msf exploit(openmrs_deserialization) > exploit

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