[SA18281] MyBB Multiple Vulnerabilities

TITLE:
MyBB Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA18281

VERIFY ADVISORY:
http://secunia.com/advisories/18281/

CRITICAL:
Moderately critical

IMPACT:
Unknown, Cross Site Scripting, Manipulation of data

WHERE:
>From remote

SOFTWARE:
MyBB (formerly MyBulletinBoard) 1.x
http://secunia.com/product/4479/

DESCRIPTION:
Some vulnerabilities have been reported in MyBB, where some have
unknown impacts and others can be exploited by malicious people to
conduct script insertion and SQL injection attacks.

1) Input passed to the "message" field when posting a message isn't
properly sanitised before being used. This can be exploited to inject
arbitrary HTML and script code, which will be executed in a user's
browser session in context of an affected site when the malicious
message is viewed via "printthread.php".

The vulnerability has been confirmed in version 1.01. Other versions
may also be affected.

2) Input passed to the file extension of uploaded files isn't
properly sanitised before being used in a SQL query. This can be
exploited to manipulate SQL queries by injecting arbitrary SQL code.

Successful exploitation requires that "magic_quotes_gpc" is
disabled.

The vulnerability has been confirmed in version 1.01 and has also
been reported in version 1.0. Other versions may also be affected.

3) Some unspecified errors exists with an unknown impact.

SOLUTION:
1-2) Edit the source code to ensure that input is properly
sanitised.

3) Update to version 1.01.
http://www.mybboard.com/downloads.php

PROVIDED AND/OR DISCOVERED BY:
1-2) imei
3) Reported by vendor

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