Rule:  

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Sid:
2243

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Summary:
This event is generated when an attempt is made to access the web cgi
application ndcgi.exe.

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Impact:
Session hijacking. Unauthorized access to resources.

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Detailed Information:
Certain versions of Netdynamics web application present an attacker with
the opportunity to steal session IDs and hijack user sessions from the
information contained in the SPIDERSESSION and uniqueValue variables.

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Affected Systems:
	Netdynamics 4.x through 5.x

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Attack Scenarios:
The attacker can gain the information necessary to login using valid
user credentials by reading the information contained in the
SPIDERSESSION and uniqueValue variables.

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Ease of Attack:
Simple.

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False Positives:
None known.

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False Negatives:
None known.

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Corrective Action:
Upgrade to the latest non-affected version of the software.

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Contributors:
Sourcefire Research Team
Brian Caswell <bmc@sourcefire.com>
Nigel Houghton <nigel.houghton@sourcefire.com>

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Additional References:

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