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CERT Coordination Center

Robtex Viking Web Server permits traversal out of HTTP docs root directory

Vulnerability Note VU#167464

Original Release Date: 2001-06-13 | Last Revised: 2001-06-13


Viking v1.07 is a 'multi-protocol-internet-server' available from A vulnerability exists with this web server which allows a remote user to see any file on the server with read permissions enabled.


Viking v1.07 does not stop requests which traverse the parent directory link out of the web root directory. As a result, a remote user can traverse the entire file system on the server host and request any file. If the web server process has read permissions to access that file, it will return its contents to the remote user.


Remote users can see any file on the server which is readable by the web server process, regardless of the file's location.


Download and install the latest beta version available at


Vendor Information

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Notified:  May 03, 2001 Updated:  June 04, 2001



Vendor Statement

"That's all correct (unfortunately)."

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.


The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us email.

CVSS Metrics

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Environmental N/A



Thanks to Joe Testa for finding and reporting this vulnerability.

This document was written by Shawn Van Ittersum.

Other Information

CVE IDs: CVE-2001-0467
Severity Metric: 1.80
Date Public: 2001-04-23
Date First Published: 2001-06-13
Date Last Updated: 2001-06-13 20:21 UTC
Document Revision: 9

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