3813.txt

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Rule:

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Sid:
3813

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Summary:
This event is generated when an attempt is made to remotely execute a command using the awstats.pl configdir parameter vulnerability.

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Impact:
Serious. Execution of arbitrary commands may be possible.

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Detailed Information:
A vulnerability exists in processing awstats.pl, a tool that can be used to graphically display statistics about web, ftp, or mail servers. Proper sanitization is not performed on user-supplied data to the configdir parameter. Maliciously formatted input can allow the execution of arbitrary commands on a vulnerable server.

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Affected Systems:
AWStats AWStats 5.0 - 6.2

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Attack Scenarios:
An attacker can supply malicious input to the configdir parameter of awstats.pl, enabling the execution of arbitrary commands on a vulnerable server.

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Ease of Attack:
Simple. The Lupper/Plupii worm is known to use this vulnerability as one of it's attack vectors.

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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 most current nonaffected version of the software.

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Contributors:
Sourcefire Vulnerability Research Team
Judy Novak <[e-mail]>

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Additional References:

iDefense:
http://www.idefense.com/application/poi/display?id=185&type=vulnerabilities

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