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RealVNC NULL Authentication Mode Bypass

This module exploits an Authentication bypass Vulnerability in RealVNC Server version 4.1.0 and 4.1.1. It sets up a proxy listener on LPORT and proxies to the target server The AUTOVNC option requires that vncviewer be installed on the attacking machine.

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Module Name

auxiliary/admin/vnc/realvnc_41_bypass

Authors

  • hdm <x [at] hdm.io>
  • theLightCosine <theLightCosine [at] metasploit.com>

References

Reliability

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 auxiliary/admin/vnc/realvnc_41_bypass msf auxiliary(realvnc_41_bypass) > show actions ...actions... msf auxiliary(realvnc_41_bypass) > set ACTION <action-name> msf auxiliary(realvnc_41_bypass) > show options ...show and set options... msf auxiliary(realvnc_41_bypass) > run

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