File: 2159.txt

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Rule:

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Sid:
2158

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Summary:
This event is generated when an invalid BGP type is detected. 

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Impact:
Unknown.

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Detailed Information:
This event indicates that a Border Gateway Protocol (BGP) packet with an invalid type has been detected.

BGP packets must have a type of 1 or more. This event indicates that a BGP packet was detected with a type of 0. This may be related to another issue regarding invalid BGP datasizes. See sid 2158 for further information.

Note: if sid 2158 has been disabled, this event will be generated if the type of problem described in the documentation for sid 2158 is detected.

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Affected Systems:
This BGP packet may cause problems with TCPDump.

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Attack Scenarios:
An attacker would need to craft a special BGP packet with a type of 0 or a datasize of less than 20 bytes.

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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 to the latest non-affected version of the software

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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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