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Pure-FTPd External Authentication Bash Environment Variable Code Injection (Shellshock)

This module exploits the Shellshock vulnerability, a flaw in how the Bash shell handles external environment variables. This module targets the Pure-FTPd FTP server when it has been compiled with the --with-extauth flag and an external Bash script is used for authentication. If the server is not set up this way, the exploit will fail, even if the version of Bash in use is vulnerable.

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Module Name



  • Stephane Chazelas
  • Frank Denis
  • Spencer McIntyre



  • Linux x86
  • Linux x86_64


  • linux


  • 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/ftp/pureftpd_bash_env_exec msf exploit(pureftpd_bash_env_exec) > show targets ...targets... msf exploit(pureftpd_bash_env_exec) > set TARGET <target-id> msf exploit(pureftpd_bash_env_exec) > show options and set options... msf exploit(pureftpd_bash_env_exec) > exploit

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