Rule:

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Sid:
953

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Summary:
This event is generated when an attempt is made to access a file with Microsoft Personal Server administration information.

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Impact:
If successful, the attacker can log into the system and modify web content, as well as modify other users' credentials.

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Detailed Information:
On systems running Microsoft Personal Web Server the file administrators.pwd contains usernames and encrypted passwords for users who can author contents and administer this server. The attacker can guess the exact URL of this file and request it, hence gaining this information.

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Affected Systems:
Certain versions of Microsoft Windows 95 or Windows 98 running Frontpage 1.1 or Frontpage 98 Server Extensions. Windows NT installations are not affected.

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Attack Scenarios:
An attacker can request the file from its standard location, entering the exact URL, and gain access to the system after cracking the passwords found in the file.

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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:
Disable the Personal Web Server.

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Contributors:
Original Rule Writer Unknown
Snort documentation contributed by Chaos <c@aufbix.org>
Sourcefire Research Team
Nigel Houghton <nigel.houghton@sourcefire.com>

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Additional References:

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