FUDforum 3.0.6: LFI

FUDforum 3.0.6: LFI

Date: 2016-11-10 10:37:03
Security Advisory – Curesec Research Team

1. Introduction

Affected Product: FUDforum 3.0.6
Fixed in: not fixed
Fixed Version Link: n/a
Vendor Website: http://fudforum.org/forum/
Vulnerability Type: LFI
Remote Exploitable: Yes
Reported to vendor: 04/11/2016
Disclosed to public: 11/10/2016
Release mode: Full Disclosure
CVE: n/a
Credits Tim Coen of Curesec GmbH

2. Overview

FUDforum is forum software written in PHP. In version 3.0.6, it is vulnerable to local file inclusion. This allows an attacker to read arbitrary files that the web user has access to.

Admin credentials are required.

3. Details

CVSS: Medium 4.0 AV:N/AC:L/Au:S/C:P/I:N/A:N

Description: The "file" parameter of the hlplist.php script is vulnerable to directory traversal, which allows the viewing of arbitrary files.

Proof of Concept:

http://localhost/fudforum/adm/hlplist.php?tname=default&tlang=./af&&SQ=4b181ea1d2d40977c7ffddb8a48a4724&file=../../../../../../../../../../etc/passwd

4. Solution

This issue was not fixed by the vendor.

5. Report Timeline

04/11/2016 Informed Vendor about Issue (no reply)
09/14/2016 Reminded Vendor (no reply)
11/10/2016 Disclosed to public