Rule:

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Sid:
824

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Summary:
A remote user has tried access the php.cgi script. Some versions of this script can allow access to any file the server can read.

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Impact:
Information disclosure.

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Detailed Information:
Because of a design problem in this version of PHP/FI, remote users are able to access any file that the UID of the http process has access to. The exploit is a simple web request for the file and can be used with malicious intent.

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Affected Systems:
PHP/FI 2.0

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Attack Scenarios:
An attacker can simply pass a file name to the script and be able to view the file if the web server has access to it. This can be used to obtain passwords or other sensitive information.

Example: http://somewebserver/php.cgi?/path/to/desired/file

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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 or remove the file php.cgix

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Contributors:
Original Rule Writer Unknown
Sourcefire Vulnerability Research Team
Nigel Houghton <nigel.houghton@sourcefire.com>
Snort documentation contributed by Josh Sakofsky

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Additional References:

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