Rule:

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Sid:
3824

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Summary:
This event is generated when an attempt is made to exploit a denial of
service or buffer overflow associated with the MailEnable mail server.

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Impact:
A successful attack may permit a denial of service or buffer overflow
that allows the execution of arbitrary code with system privileges.

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Detailed Information:
MailEnable is a Windows-based mail server.  A vulnerability exists in the
MailEnable SMTP server, possibly allowing a denial of service of execution
of arbitrary code with system privileges.  The vulnerability is
associated with passing overly long arguments to the AUTH command.

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Affected Systems:
	MailEnable MailEnable Professional 1.54 and prior
	MailEnable MailEnable Enterprise Edition 1.0.4 and prior

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Attack Scenarios:
An attacker can send a malicious SMTP payload with an overly long
argument to the AUTH command, possibly causing a denial of service or a
buffer overflow and the subsequent execution of arbitrary code with
system privileges on the vulnerable server.

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Ease of Attack:
Simple.

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False Positives:
It may be possible for this alert to fire when the command AUTH is found
in the data portion of the SMTP transfer instead of as an actual command.

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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
Judy Novak <judy.novak@sourcefire.com>

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Additional References:

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