File: 1992.txt

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Rule:  

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Sid:
1992

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Summary:
This event is generated when an attempt is made to list directories outside the ftp root directory.

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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:
Some versions of the QVT FTP server from QPC Software allows browsing the directory structure of a host using a directory traversal technique.

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Affected Systems:
QPC Software QVT/Net 4.0 for Windows NT, 2000 and 9x
QPC Software QVT/Term 5.0 for Windows NT, 2000 and 9x
Other FTP servers may be vulnerable

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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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