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############################## 01. ### Advisory Information ### Title: Directory Traversal Vulnerability in DNNarticle module Date published: n/a Date of last update: n/a Vendors contacted: zldnn.com Discovered by: Esmaeil Rahimian Severity: Critical 02. ### Vulnerability Information ### OVE-ID: CVE-2018-9126. 03. ### Introduction ### DNN Article is not only a powerful module to enable post and manage articles, but also provides total solutions for content management. Content such as articles, news, announcements, product catalogs, etc can be organized into unlimited levels of categories. New content can be moderated before published. The administrator can assign roles as moderator. Also an email can be sent when new content is added. Visitors can make comment and rating. They can also agree or disagree an article.The product supports common features of DotNetNuke module such as localization, portable interface, search, Syndication etc. It can integrate with Twitter, Facebook, Google Map, Windows Live Writer and DotNetNuke Journal to provide more powerful functions for your portals. DNNArticle is an extendable system. There are several sub modules shipped with DNNArticle standard edition to provide rich and attractive look and feel experiences. There are also several optional sub modules that provide more features. And the number of optional sub modules is growing continually. There are also several applications based on DNNArticle such as DNNArticle Blog and DNNArticle Product. DNNArticle fully supports template and CSS theme. This feature provides more flexibility for users to build more attractive user interface. zldnn.com 04. ### Vulnerability Description ### The DNNArticle module 11 for DNN (formerly DotNetNuke) allows remote attackers to read the web.config file, and consequently discover database credentials, via the /GetCSS.ashx/?CP=%2fweb.config URI. 05. ### Technical Description / Proof of Concept Code ### desktopmodules/DNNArticle/GetCSS.ashx/?CP=%2fweb.config&smid=512&portalid=3 with this link the attacker can see the web.config file and find DB name and see the user name and passwords of DB 06. ###Affected Product Code Base ### DnnArticle Module for DotNet Nuke - 11 Affected Component: DNNArticle Module [Attack Type] Remote [Impact Information Disclosure] True [Attack Vectors] Attacker can see the web.config file that contain critical information 06. ### Credits ### SecureHost[Research Team] - www.securehost.co This vulnerability has been discovered by: Esmaeil Rahimian - [www.securehost.co] - Rahimian(at)SecureHost(dot)co |
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