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ElasticSearch Search Groovy Sandbox Bypass

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ElasticSearch Search Groovy Sandbox Bypass

Disclosed
02/11/2015
Created
05/30/2018

Description

This module exploits a remote command execution (RCE) vulnerability in ElasticSearch, exploitable by default on ElasticSearch prior to 1.4.3. The bug is found in the REST API, which does not require authentication, where the search function allows groovy code execution and its sandbox can be bypassed using java.lang.Math.class.forName to reference arbitrary classes. It can be used to execute arbitrary Java code. This module has been tested successfully on ElasticSearch 1.4.2 on Ubuntu Server 12.04.

Author(s)

  • Cameron Morris
  • Darren Martyn
  • juan vazquez <juan.vazquez@metasploit.com>

Platform

Java

Architectures

java

Development

References

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/elasticsearch/search_groovy_script
msf exploit(search_groovy_script) > show targets
    ...targets...
msf exploit(search_groovy_script) > set TARGET < target-id >
msf exploit(search_groovy_script) > show options
    ...show and set options...
msf exploit(search_groovy_script) > exploit

Time is precious, so I don’t want to do something manually that I can automate. Leveraging the Metasploit Framework when automating any task keeps us from having to re-create the wheel as we can use the existing libraries and focus our efforts where it matters.

– Jim O’Gorman | President, Offensive Security

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