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MyBB Multiple Vulnerabilities
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Secunia Advisory:
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SA32451
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Release Date:
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2008-10-30
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Last Update:
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2008-11-06
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Popularity:
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734 views
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Critical:
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Moderately critical
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Impact:
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Unknown
Cross Site Scripting
Brute force
Exposure of sensitive information
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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-2008-4928
CVE-2008-4929
CVE-2008-4930
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Description:
Some vulnerabilities and a weakness have been reported in MyBB, where some have an unknown impact, and others can be exploited by malicious people to conduct brute force or cross-site scripting attacks.
1) Input passed to the "url" parameter in moderation.php (when "action" is set to "removesubscriptions" and "ajax" to "1") is not properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site.
Successful exploitation of this vulnerability requires that the victim has valid moderator or administrator credentials.
2) The problem is caused due to storing attachments with filenames based on the user ID and the timestamp, making them vulnerable to brute force attacks. This can be exploited to disclose sensitive information without valid user credentials.
3) Some vulnerabilities are caused due to unknown errors. No further information is currently available.
The vulnerabilities and the weakness are reported in all versions prior to 1.4.3 downloaded on 2008-10-29 or later.
Solution:
Update to version 1.4.3 downloaded on 2008-10-29 or later.
Provided and/or discovered by:
1, 2) Kellanved, NeoThermic, and Techie-Micheal
3) Reported by the vendor.
Changelog:
2008-11-06: Added CVE reference.
Original Advisory:
MyBB:
http://community.mybboard.net/thread-39705.html
Kellanved, NeoThermic, and Techie-Micheal:
http://lists.grok.org.uk/pipermail/full-disclosure/2008-October/065280.html
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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.
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