Rule:

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Sid:
1956

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Summary:
This event is generated when a request is made to discover the version and configuration information associated with the Remote Procedure Call (RPC) amd.

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Impact:
Information disclosure.  This request can allow an attacker to discover the version of amd running as well as other configuration information about the host.

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Detailed Information:
The amd RPC service implements the automounter daemon on UNIX hosts.  The amd service automatically mounts and unmounts requested file systems.  An attacker can make a request to amd to discover its version number. A successful request will return the version number along with other valuable configuration information about the server, including the architecture.  

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Affected Systems:
Any system running amd.

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Attack Scenarios:
An attacker may request the version number associated with amd.  The response may give an attacker valuable configuration information about the host.

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Ease of Attack:
Simple.  Execute the command 'amq -v -U -h hostname/IP'

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False Positives:
None Known.

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False Negatives:
None Known.

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Corrective Action:
Limit remote access to RPC services.

Filter RPC ports at the firewall to ensure access is denied to RPC-enabled machines. 

Disable unneeded RPC services.

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Contributors:
Original rule written by Brian Caswell <bmc@sourcefire.com>
Sourcefire Research Team
Judy Novak <judy.novak@sourcefire.com>

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Additional References:


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