J-Security Center

Title: Burning Board URL Parameter Manipulation Vulnerability

Severity: MODERATE

Description:

Burning Board is web forum software. It is written in PHP, back-ended by MySQL, and will run on most Unix and Linux variants as well as Microsoft Windows.

An attacker may allegedly create a malicious link which is capable of causing actions to be performed on the behalf of a legitimate Burning Board user who visits the link. To exploit this vulnerability, the attacker must manipulate URL parameters in the malicious link in such a way as to cause the desired actions to be performed by a user who visits the link. The legitimate forum user must also be authenticated via a cookie-based authentication credential. The link may include BBCode.

If the attacker launches this attack via a malicious attacker-controlled webpage, then it is trivial for the attacker to write a script to conceal that unauthorized actions have been performed on the behalf of the legitimate user. The attacker's script would most likely redirect the user to an expected webpage after the attack has been performed. Otherwise, it is possible the user may discover that an attempt has been made to perform actions on their behalf.

This might be exploited by an attacker to cause an arbitrary attacker-supplied forum message to be posted by a legitimate user who visits the malicious webpage.

It has been reported, but not confirmed, that other web forum software (such as phpBB) may also be affected by this vulnerability.

Affected Products:

  • Woltlab Burning Board 1.1.1

References:

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