lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [day] [month] [year] [list]
Date: Thu, 5 Jun 2014 13:51:24 +0200
From: RedTeam Pentesting GmbH <>
Subject: [FD] [RT-SA-2014-006] Directory Traversal in DevExpress ASP.NET
 File Manager

Advisory: Directory Traversal in DevExpress ASP.NET File Manager

During a penetration test RedTeam Pentesting discovered a directory
traversal vulnerability in DevExpress' ASP.NET File Manager and File
Upload. Attackers are able to read arbitrary files by specifying a
relative path.


Product: DevExpress ASPxFileManager Control for WebForms and MVC
Affected Versions: DevExpress ASPxFileManager v10.2 to v13.2.8
Fixed Versions: DevExpress ASPxFileManager v13.2.9
Vulnerability Type: Directory Traversal
Security Risk: high
Vendor URL:
Vendor Status: fixed version released
Advisory URL:
Advisory Status: published
CVE: CVE-2014-2575


"The DevExpress ASP.NET Subscription includes a standalone Multi-File
Upload Manager for WebForms and MVC and a pre-built File Manager for
WebForms; built so you can instantly introduce file management
capabilities in your next web application."

(from DevExpress' Homepage)

More Details

The ASPX File Manager component is prone to a directory traversal
vulnerability. Attackers with access to the File Manager component can
read arbitrary files on the same partition as the shared directory.

A common request to download a file via the File Manager component
requires multiple HTTP-Post parameters:


The parameter __EVENTARGUMENT=13|<file.ext> specifies a file download
and the file which is to be downloaded. Attackers may also request files
outside of the shared directory by prepending a relative path to a
parent directory.

Proof of Concept

By requesting files with a relative path, files otherwise not available
will be accessible through the File Manager component.  Depending on the
shared directory and the webserver configuration, the webserver
configuration file might for example be accessible through the File
Manager component:


Other sensitive operating system files could be affected, too.

Example exploit:
curl --data __EVENTTARGET=ctl00%24ContentPlaceHolder1%24ASPxFileManager1\
"&__EVENTARGUMENT=13%7C../../web.config&=&__EVENTVALID" \

The request above will download the specified file.


Instead of a physical file system provider, a database file system
provider with limited access permissions could be used.


Update ASPxFileManager control to DevExpress libraries version v13.2.9.

Security Risk

The risk is estimated to be high. This vulnerability allows attackers to
access arbitrary files on the same partition as the File Manager's root
directory. This may allow attackers to read sensitive information like
the webserver configuration.


2014-03-10 Vulnerability identified
2014-03-21 Customer approved disclosure to vendor
2014-03-21 CVE number requested and assigned
2014-03-25 Vendor notified
2014-04-11 Customer opened support ticket with vendor
2014-04-17 Vendor released fixed version
2014-04-17 Vendor released security advisory to customers
2014-06-05 Advisory released


Vendor Security Advisory:

RedTeam Pentesting GmbH

RedTeam Pentesting offers individual penetration tests, short pentests,
performed by a team of specialised IT-security experts. Hereby, security
weaknesses in company networks or products are uncovered and can be
fixed immediately.

As there are only few experts in this field, RedTeam Pentesting wants to
share its knowledge and enhance the public knowledge with research in
security related areas. The results are made available as public
security advisories.

More information about RedTeam Pentesting can be found at

RedTeam Pentesting GmbH                   Tel.: +49 241 510081-0
Dennewartstr. 25-27                       Fax : +49 241 510081-99
52068 Aachen          
Germany                         Registergericht: Aachen HRB 14004
Geschäftsführer:                       Patrick Hof, Jens Liebchen

Download attachment "signature.asc" of type "application/pgp-signature" (474 bytes)

Sent through the Full Disclosure mailing list
Web Archives & RSS:

Powered by blists - more mailing lists