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MyBB Username Spoofing and SQL Injection Vulnerabilities

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Release Date:  2009-09-21    Views:  3,533

Secunia Advisory SA36803

Where:

From remote

Impact:

Spoofing, Manipulation of data

Solution Status:

Vendor Patch

CVE Reference(s):

No CVE references.

Description


A security issue and a vulnerability have been reported in MyBB, which can be exploited by malicious users to conduct spoofing and SQL injection attacks.

1) Input passed via avatar extensions is not properly sanitised before being used in SQL queries. This can be exploited to manipulate SQL queries by uploading specially named avatars.

2) The script allows to sign up with usernames containing zero width space characters, which can be exploited to e.g. conduct spoofing attacks.

Note: Additionally, an error within the Custom MyCode implementation can allow administrators to use eval expressions.


Solution:
Update to version 1.4.9 or apply patches.

Further details available to Secunia VIM customers

Provided and/or discovered by:
The vendor credits endeavormac, frostschutz, and TheLinx.

Original Advisory:
http://blog.mybboard.net/2009/09/21/mybb-1-4-9-released-security-update/

1) http://dev.mybboard.net/issues/464
2) http://dev.mybboard.net/issues/418

http://dev.mybboard.net/issues/317

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: MyBB Username Spoofing and SQL Injection Vulnerabilities

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