8266.txt

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Rule:

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Sid:
8266

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Summary:
This event is generated when an attempt is made to exploit a known vulnerability in the Microsoft Web Client Service.

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Impact:
Serious. Possible execution of arbitrary code of the attackers choosing.

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Detailed Information:
The Microsoft Web Client Service allows applications to access resources via a network using WebDAV.

A buffer overflow condition exists in the Microsoft Web Client service which may allow a remote attacker to execute code of their choosing on an affected system. The flaw can be exploited by an authenticated or guest user via RPC.

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Affected Systems:
Microsoft Windows XP SP2 and prior
Microsoft Windows 2003 SP1 and prior

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Attack Scenarios:
An attacker can supply a malformed request to the client service to trigger the exploit conditions and then run code of their choosing on an affected host. 

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Ease of Attack:
Simple. Exploits exist.

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False Positives:
None known.

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False Negatives:
None known.

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Corrective Action:
Ensure the system is using an up to date version of the software and has had all vendor supplied patches applied.

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

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Additional References:

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