1538.txt

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Rule:  

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Sid:
1538

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Summary:
This event is generated when an attempt is made to exploit a known vulnerability in the Cassandra NNTP server.

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Impact:
Denial of Service (DoS) 

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Detailed Information:
A vulnerability exists in the Cassandra NNTP server for Windows such that an unusually long login name will cause a DoS condition to occur. This is due to an unchecked buffer in the code that handles login attempts. A login name that exceeds 10 000 characters will trigger the overflow.

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Affected Systems:
Atrium Software Cassandra NNTP Server 1.10

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Attack Scenarios:
An attacker needs to supply a login username containing 10 000 or more characters to cause the DoS.

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Ease of Attack:
Simple. No exploit software is required.

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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 Vulnerability Research Team
Brian Caswell <[e-mail]>
Nigel Houghton <[e-mail]>

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Additional References:

CVE:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2000-0341

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