Rule:  

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Sid:
1509

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Summary:
This event is generated when an attempt is made to execute a directory
traversal attack.

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Impact:
Information disclosure. This is a directory traversal attempt which can
lead to information disclosure and possible exposure of sensitive
system information.

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Detailed Information:
Directory traversal attacks usually target web, web applications and ftp
servers that do not correctly check the path to a file when requested by
the client.

This can lead to the disclosure of sensitive system information which may
be used by an attacker to further compromise the system.

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Affected Systems:

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Attack Scenarios:
An authorized user or anonymous user can use the directory traversal 
technique, to browse folders outside the ftp root directory. Information
gathered may be used in further attacks against the host.

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Ease of Attack:
Simple. No exploit software required.

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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

Upgrade the software to the latest non-affected version.

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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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