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Microsoft Windows Internet Connection Sharing Denial of Service
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Secunia Advisory:
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SA22592
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Release Date:
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2006-10-30
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Last Update:
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2006-11-02
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Popularity:
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19,436 views
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Critical:
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Less critical
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Impact:
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DoS
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Where:
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From local network
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Solution Status:
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Unpatched
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| OS: | Microsoft Windows XP Home Edition
Microsoft Windows XP Professional
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| CVE reference: | CVE-2006-5614
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Description:
h07 has discovered a vulnerability in Microsoft Windows, which can be exploited by malicious people to cause a DoS (Denial of Service).
The vulnerability is caused due to a NULL pointer dereference error in Windows NAT Helper Components (ipnathlp.dll). This can be exploited to crash the service via a specially crafted DNS query.
Successful exploitation requires that Internet Connection Sharing is enabled and the query is received from a client on the shared network interface.
The vulnerability is confirmed in a fully patched Windows XP SP2 system. Other versions may also be affected.
Solution:
Use another way of sharing the Internet connection.
Provided and/or discovered by:
h07
Changelog:
2006-11-02: Added CVE reference.
Original Advisory:
http://milw0rm.com/exploits/2672
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About this Secunia Advisory
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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