2464.txt

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Rule:

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Sid:
2464

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Summary:
This event is generated when an attempt is made to exploit a buffer overflow associated with the Ethereal decode of the Enhanced Interior Gateway Routing Protocol (EIGRP).

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Impact:
A successful attack may allow the execution of arbitrary code as root or LOCAL_SYSTEM privilege on a vulnerable host.

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Detailed Information:
There is a vulnerability associated with particular versions of Ethereal that may cause a buffer overflow when a malformed EIGRP packet is decoded.  This may permit the execution of arbitrary code with root or LOCAL_SYSTEM privilege. The buffer overflow occurs when a larger than expected packet length value is discovered in the EIGRP payload.

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Affected Systems:
Any host running Ethereal versions 0.8.14 through 0.10.2.

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Attack Scenarios:
An attacker can create and send a malformed EIGRP packet, and if decoded by a vulnerable version of Ethereal, can cause a buffer overflow and the subsequent execution of arbitrary code.

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Ease of Attack:
Simple. Exploit code is available.

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False Positives:
None known.

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False Negatives:
None known.

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Corrective Action:
Update to version 0.10.3 of Ethereal.

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

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Additional References

CVE:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0176

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