
Rule:

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Sid:
4189

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Summary:
This event is generated when an attempt is made to exploit a known
vulnerability in Microsoft Internet Explorer via an ActiveX control.

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Impact:
A successful attack can cause a buffer overflow and the subsequent
execution of arbitrary code with system level privileges on a
vulnerable host.

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Detailed Information:
A vulnerability exists in the way that Internet Explorer handles
ActiveX controls that may present an attacker with the opportunity to
run code of their choosing on a host.

In particular, this event is generated when a call to the component
Third-Party Plugin is made.

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Affected Systems:
  Microsoft Internet Explorer

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Attack Scenarios:
An attacker can host a web site that will return code of their choosing
to the object when a victim clicks on a malicious link.

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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:
Upgrade to the most current non-affected version of the product.

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Contributors:
Sourcefire Vulnerability Research Team
Alex Kirk <akirk@sourcefire.com>
Nigel Houghton <nigel.houghton@sourcefire.com>

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Additional References

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