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Cerberus FTP Server SFTP Username Enumeration

This module uses a dictionary to brute force valid usernames from Cerberus FTP server via SFTP. This issue affects all versions of the software older than or and is caused by a discrepancy in the way the SSH service handles failed logins for valid and invalid users. This issue was discovered by Steve Embling.

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Module Name



  • Steve Embling
  • Matt Byrne <attackdebris [at]>




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/ssh/cerberus_sftp_enumusers msf auxiliary(cerberus_sftp_enumusers) > show actions ...actions... msf auxiliary(cerberus_sftp_enumusers) > set ACTION <action-name> msf auxiliary(cerberus_sftp_enumusers) > show options and set options... msf auxiliary(cerberus_sftp_enumusers) > run