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Microsoft Windows Vista SMBv2 Signing Vulnerability
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Secunia Advisory:
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SA27997
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Release Date:
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2007-12-11
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Last Update:
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2007-12-13
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Popularity:
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5,578 views
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Critical:
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Moderately critical
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Impact:
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System access
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Where:
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From local network
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Solution Status:
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Vendor Patch
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| OS: | Microsoft Windows Vista
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| CVE reference: | CVE-2007-5351
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Description:
A vulnerability has been reported in Microsoft Windows Vista, which can be exploited by malicious people to compromise a user's system.
The vulnerability is caused due to an improper implementation of SMBv2 signing and can be exploited to execute arbitrary code by spoofing the signature in a SMBv2 packet to a trusted host.
Successful exploitation requires e.g. that SMBv2 is enabled (not enabled by default unless required by a host) and that SMBv2 is used in the communications (not used when e.g. one system is a previous operating system version).
Solution:
Apply patches.
Windows Vista:
http://www.microsoft.com/downloads/de...=9d22a9ee-cc08-4b2d-af4e-55d326f82761
Windows Vista x64:
http://www.microsoft.com/downloads/de...=05a9501c-4da3-4fa1-901e-99cb262e5e36
Provided and/or discovered by:
Reported by the vendor.
Changelog:
2007-12-13: Added link to US-CERT.
Original Advisory:
MS07-063 (KB942624):
http://www.microsoft.com/technet/security/Bulletin/MS07-063.mspx
Other References:
US-CERT VU#520465:
http://www.kb.cert.org/vuls/id/520465
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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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