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[security-alerts] FW: [SA27997] Microsoft Windows Vista SMBv2 Signing Vulnerability



> ----------------------------------------------------------------------
>
> TITLE:
> Microsoft Windows Vista SMBv2 Signing Vulnerability
>
> SECUNIA ADVISORY ID:
> SA27997
>
> VERIFY ADVISORY:
> http://secunia.com/advisories/27997/
>
> CRITICAL:
> Moderately critical
>
> IMPACT:
> System access
>
> WHERE:
> From local network
>
> OPERATING SYSTEM:
> Microsoft Windows Vista
> http://secunia.com/product/13223/
>
> 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/details.aspx?FamilyId=9d22a
> 9ee-cc08-4b2d-af4e-55d326f82761
>
> Windows Vista x64:
> http://www.microsoft.com/downloads/details.aspx?FamilyId=05a95
> 01c-4da3-4fa1-901e-99cb262e5e36
>
> PROVIDED AND/OR DISCOVERED BY:
> Reported by the vendor.
>
> ORIGINAL ADVISORY:
> MS07-063 (KB942624):
> http://www.microsoft.com/technet/security/Bulletin/MS07-063.mspx
>
> ----------------------------------------------------------------------



 




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