Essentia Web Server Directory Traversal Vulnerability

Bugtraq ID:	4160
Class:	Input Validation Error
CVE:	CVE-2002-0312
Remote:	Yes
Local:	No
Published:	Feb 22 2002 12:00AM
Updated:	Jul 11 2009 10:56AM
Credit:	Discovered by Tamer Sahin <[email protected]>.
Vulnerable:	Essen Essentia Web Server 2.1 - Microsoft Windows 2000 Professional SP2 - Microsoft Windows 2000 Professional SP1 - Microsoft Windows 2000 Professional - Microsoft Windows 95 - Microsoft Windows 98 - Microsoft Windows NT Workstation 4.0 SP6a - Microsoft Windows NT Workstation 4.0 SP5 - Microsoft Windows NT Workstation 4.0 SP4 - Microsoft Windows NT Workstation 4.0 SP3 - Microsoft Windows NT Workstation 4.0 SP2 - Microsoft Windows NT Workstation 4.0 SP1 - Microsoft Windows NT Workstation 4.0 - Microsoft Windows XP Home
Not Vulnerable:

Essentia Web Server Directory Traversal Vulnerability

Essentia Web Server is a multi-threaded HTTP server designed for Microsoft Windows environments. Essentia is maintained by Essen.

A vulnerability has been reported in Essentia Web Server 2.1 (and possibly other versions) which may allow a remote attacker to view arbitrary files.

Reportedly, Essentia does not adequately filter '../' sequences from web requests, making it prone to directory traversal attacks. This vulnerability could be exploited to effectively disclose any file on a host running the affected software.

Essentia Web Server Directory Traversal Vulnerability

No exploit code required.

Essentia Web Server Directory Traversal Vulnerability

Solution:
The vendor has released an upgrade.


Essen Essentia Web Server 2.1

• Essen Essentia.exe
  http://www.essencomp.com/Products/Essentia/Essentia.exe

Essentia Web Server Directory Traversal Vulnerability

References:

• Essentia Web Server Product Page (Essen)