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MyBulletinBoard Multiple Vulnerabilities
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Secunia Advisory:
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SA15552
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Release Date:
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2005-05-31
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Last Update:
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2006-03-27
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Popularity:
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7,411 views
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Critical:
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Moderately critical
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Impact:
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Cross Site Scripting
Manipulation of data
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | MyBB (formerly MyBulletinBoard) 1.x
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Subscribe:
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Instant alerts on relevant vulnerabilities 
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| | CVE reference: | CVE-2005-1811
CVE-2005-1832
CVE-2005-1833
CVE-2005-2778
CVE-2006-1345
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Description:
Some vulnerabilities have been discovered in MyBulletinBoard (MyBB), which can be exploited by malicious people to conduct cross-site scripting, script insertion and SQL injection attacks.
1) Input passed to the "Your Website URL", "AIM Screen Name", "MSN ID", and "Yahoo ID" fields when updating a user profile is not properly sanitised before being used. This can be exploited to inject arbitrary HTML and script code, which is executed in a user's browser session in context of an affected site when the malicious user data is viewed.
2) Some input is not properly sanitised before being returned to users. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of a vulnerable site.
Examples:
http://[host]/misc.php?action=syndication&forums[0]=[code]
http://[host]/misc.php?action=syndication&forums[0]=0&version[code]
http://[host]/misc.php?action=syndication&limit=[code]
http://[host]/forumdisplay.php?fid=1&datecut=[code]
http://[host]/forumdisplay.php?fid=2&page=[code]
http://[host]/member.php?agree=I+Agree&username=[code]
http://[host]/member.php?agree=I+Agree&email=[code]
http://[host]/member.php?agree=I+Agree&email2=[code]
http://[host]/memberlist.php?page=[code]
http://[host]/memberlist.php?usersearch=[code]
http://[host]/showthread.php?mode=linear&tid=1&pid=[code]
http://[host]/showthread.php?mode=linear&tid=1[code]
http://[host]/printthread.php?tid=1[code]
3) Some input is not properly sanitised before being used in a SQL query. This can be exploited to manipulate SQL queries by injecting arbitrary SQL code.
Examples:
http://[host]/calendar.php?action=event&eid=[code]
http://[host]/online.php?pidsql=)[code]
http://[host]/memberlist.php?usersearch=%'[code]
http://[host]/editpost.php?pid='[code]
http://[host]/forumdisplay.php?fid='[code]
http://[host]/newreply.php?tid='[code]
http://[host]/search.php?action=results&sid='[code]
http://[host]/showthread.php?tid='[code]
http://[host]/showthread.php?pid='[code]
http://[host]/usercp2.php?tid='[code]
http://[host]/printthread.php?tid='[code]
http://[host]/reputation.php?pid='[code]
http://[host]/portal.php?action=do_login&username='[code]
http://[host]/polls.php?action=newpoll&tid='[code]
http://[host]/ratethread.php?tid='[code]
http://[host]/member.php?action='[code]
http://[host]/member.php?action=profile&uid=lastposter&fid=[code]
The vulnerabilities have been confirmed in version 1.0 RC 4. Other versions may also be affected.
Solution:
Update to version 1.0 or later.
http://www.mybboard.com/downloads.php
Provided and/or discovered by:
1) August Christopher
2-3) Alberto Trivero
3) Additional information provided by W7ED.
Changelog:
2005-06-01: Added vulnerabilities reported by Alberto Trivero. Updated "Solution" section.
2005-06-02: Added CVE reference.
2005-06-06: Added CVE references.
2005-08-12: Changed status of advisory as only some vulnerabilities have been fixed.
2005-08-30: Added example for vulnerability #3 provided by W7ED.
2005-09-02: Updated "Solution" section.
2005-09-06: The new version does not correctly fix all cross-site scripting vulnerabilities. Changed status to partially fixed and updated "Solution" section.
2005-10-06: Added CVE reference.
2006-01-11: Updated "Solution" section.
2006-03-27: Added CVE reference.
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About this Secunia Advisory
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
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