Big Forum Local File Include and Arbitrary File Upload Vulnerabilities

BID:41133

Info

Big Forum Local File Include and Arbitrary File Upload Vulnerabilities

Bugtraq ID: 41133
Class: Input Validation Error
CVE:
Remote: Yes
Local: No
Published: Jun 24 2010 12:00AM
Updated: Jun 24 2010 12:00AM
Credit: Zer0 Thunder
Vulnerable: Big Forum Big Forum 5.2
Not Vulnerable:

Discussion

Big Forum Local File Include and Arbitrary File Upload Vulnerabilities

Big Forum is prone to a local file-include vulnerability and an arbitrary-file-upload vulnerability because the application fails to sufficiently sanitize user-supplied input.

An attacker can exploit these issues to upload arbitrary files onto the webserver, execute arbitrary local files within the context of the webserver, and obtain sensitive information. By exploiting the arbitrary-file-upload and local file-include vulnerabilities at the same time, the attacker may be able to execute remote code.

Big Forum 5.2 is vulnerable; other versions may also be affected.

Exploit / POC

Big Forum Local File Include and Arbitrary File Upload Vulnerabilities

An attacker can exploit these issues via a browser.

The following example URI is available:

http://www.example.com/bf/admin/admin.php?do=mods&aktion=install&datei=../../../../../boot.ini%00

Solution / Fix

Big Forum Local File Include and Arbitrary File Upload Vulnerabilities

Solution:
Currently we are not aware of any vendor-supplied patches. If you feel we are in error or if you are aware of more recent information, please mail us at: [email protected].

References

Big Forum Local File Include and Arbitrary File Upload Vulnerabilities

References:

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