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Security Corporation Security Advisory [SCSA-017]



Directory Traversal Vulnerability in EZ Server

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PROGRAM: EZ Server

HOMEPAGE: http://www.html-helper.com

VULNERABLE VERSIONS: 1.0 and prior ?

RISK: Medium/High

IMPACT: Directory Traversal

RELEASE DATE: 2003-04-17



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TABLE OF CONTENTS

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1..........................................................DESCRIPTION

2..............................................................DETAILS

3..............................................................EXPLOIT

4............................................................SOLUTIONS

5........................................................VENDOR STATUS

6..............................................................CREDITS

7...........................................................DISCLAIMER

8...........................................................REFERENCES

9.............................................................FEEDBACK



1. DESCRIPTION

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EZ Server is a "compact multi-threaded server has both HTTP and FTP

built right into it." (direct quote from http://www.html-helper.com)





2. DETAILS

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¤ Directory Traversal :



A security vulnerability in EZ HTTP server allows remote attackers to

gain access to system files.





3. EXPLOIT

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¤ Directory Traversal :



http://[target]/../../winnt/win.ini





4. SOLUTIONS

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No solution for the moment.





5. VENDOR STATUS

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The vendor has reportedly been notified.





6. CREDITS

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Discovered by Gregory Le Bras <gregory.lebras@security-corporation.com>





7. DISLAIMER

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The information within this paper may change without notice. Use of

this information constitutes acceptance for use in an AS IS condition.

There are NO warranties with regard to this information. In no event

shall the author be liable for any damages whatsoever arising out of

or in connection with the use or spread of this information. Any use

of this information is at the user's own risk.





8. REFERENCES

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- Original Version:

  http://www.security-corporation.com/index.php?id=advisories&a=017



- Version Française:

  http://www.security-corporation.com/index.php?id=advisories&a=017-FR





9. FEEDBACK

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Please send suggestions, updates, and comments to:



Security Corporation

http://www.security-corporation.com

info@security-corporation.com