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Kibana Upgrade Assistant Telemetry Collector Prototype Pollution

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Kibana Upgrade Assistant Telemetry Collector Prototype Pollution

Disclosed
04/17/2020
Created
10/07/2023

Description

Kibana before version 7.6.3 suffers from a prototype pollution bug within the Upgrade Assistant. By setting a new constructor.prototype.sourceURL value we're able to execute arbitrary code. Code execution is possible through two different ways. Either by sending data directly to Elastic, or using Kibana to submit the same queries. Either method enters the polluted prototype for Kibana to read. Kibana will either need to be restarted, or collection happens (unknown time) for the payload to execute. Once it does, cleanup must delete the .kibana_1 index for Kibana to restart successfully. Once a callback does occur, cleanup will happen allowing Kibana to be successfully restarted on next attempt.

Author(s)

  • h00die
  • Alex Brasetvik (alexbrasetvik)

Platform

Linux

Architectures

cmd

Development

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

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