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Local File Inclusion Vulnerability in Novaboard

Advisory ID:HTB22657
Vulnerable Versions:1.1.4 and probably prior
Tested Version:1.1.4
Advisory Publication:October 13, 2010 [without technical details]
Vendor Notification:October 13, 2010
Public Disclosure:October 27, 2010
Vulnerability Type:PHP File Inclusion [CWE-98]
Risk Level:High
CVSSv2 Base Score:7.6 (AV:N/AC:H/Au:N/C:C/I:C/A:C)
Solution Status:Fixed by Vendor
Discovered and Provided:High-Tech Bridge Security Research Lab

Advisory Details:

High-Tech Bridge SA Security Research Lab has discovered vulnerability in Novaboard which could be exploited to include and execute arbitrary local files on the target system.

1) Local file inclusion in Novaboard
Input passed to the "nova_lang" cookie in index.php is not properly sanitized before being used to include local files. A remote attacker can include arbitrary files on the target system using directory traversal sequences.
Exploitation example:
Cookie: nova_lang=../../../../../../../../../../../../../../etc/passwd/././././.[>40 95 * "/."]/././././.

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[1] High-Tech Bridge Advisory HTB22657 - - Local File Inclusion Vulnerability in Novaboard
[2] Novaboard - - NovaBoard is a free, feature rich community message board software written in PHP & MySQL that allows you to set up your own forum within minutes.
[3] Common Weakness Enumeration (CWE) - - targeted to developers and security practitioners, CWE is a formal list of software weakness types.
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