Rule:

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Sid:
803

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Summary:
This event is generated when an attempt is made to access hsx.cgi and 
then utilize a directory traversal technique to read files outside the 
root directory of the web server. This indicates an attempt to exploit a
vulnerability in the Hyperseek 2000 search engine that allows 
read-access to directory listings and files.


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Impact:
Information gathering.

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Detailed Information:
This event indicates that an attempt has been made to exploit a directory traversal vulnerability in HyperSeek 2000. When directory traversal techniques such as ../../ are used as arguments to hsx.cgi, an unauthorized user can navigate to directories and access files that are normally hidden. 

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Affected Systems:
Web servers running iWeb Systems HyperSeek 2000 are vulnerable. 

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Attack Scenarios:
An attacker can use a directory traversal technique when executing hsx.cgi to view hidden directories and files on the web server.

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Ease of Attack:
Simple. Exploits exist. 

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False Positives:
None known.

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False Negatives:
None known.

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Corrective Action:
Apply the appropriate vendor supplied patches.

Uprade to the latest non-affected version of the software.

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Contributors:
Original rule writer unknown
Rule modified by Brian Caswell <bmc@sourcefire.com>
Nigel Houghton <nigel.houghton@sourcefire.com>
Sourcefire Technical Publications Team

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Additional References:

Bugtraq
http://www.securityfocus.com/bid/2314

CERT/CC
http://www.kb.cert.org/vuls/id/146704

CVE
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2001-0253

Nessus
http://cgi.nessus.org/plugins/dump.php3?id=10602

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