Rule:

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Sid:
2515

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Summary:
This event is generated when an attempt is made to exploit a known
vulnerability in the Microsoft implementation of the Private
Communications Transport (PCT) protocol.

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Impact:
Execution of arbitrary code. Unauthorized administrative access to an
affected host.

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Detailed Information:
A vulnerability exists in the handling of PCT requests that
can be manipulated to give an attacker the opportunity to execute
arbitrary code of their choosing leading to a possible remote
administrative compromize of an affected host.

The condition exists because of poor error handling routines in the
Microsoft Secure Sockets Layer (SSL) library.

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Affected Systems:
	Microsoft Windows NT, 2000, 2003 and XP systems using PCT

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Attack Scenarios:
An attcker needs to make a specially crafted PCT request to an affected system.

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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:
Apply the appropriate vendor supplied patches

Disable the use of PCT

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Contributors:
Sourcefire Research Team
Matt Watchinski <mwatchinski@sourcefire.com>
Nigel Houghton <nigel.houghton@sourcefire.com>

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Additional References:

Microsoft:
http://www.microsoft.com/security/encyclopedia/details.aspx?name=Win32/Gaobot
http://www.microsoft.com/security/encyclopedia/details.aspx?name=Win32/Sasser
http://www.microsoft.com/security/encyclopedia/details.aspx?name=Win32/Korgo
http://www.microsoft.com/security/encyclopedia/details.aspx?name=win32/rbot
http://www.microsoft.com/security/encyclopedia/details.aspx?name=Win32/Sdbot
http://www.microsoft.com/security/encyclopedia/details.aspx?name=Win32/Mytob
http://www.microsoft.com/security/encyclopedia/details.aspx?name=Win32/Spybot
http://www.microsoft.com/security/encyclopedia/details.aspx?name=Win32/Wootbot

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