With a little side of applesauce...

Friday, October 24, 2008

ms08-067 - Microsoft's out-of-band security update

Just a heads-up that Microsoft released an out-of-band security update last night (Oct 23, 2008):
http://www.microsoft.com/protect/computer/updates/bulletins/200810_oob.mspx

Here are more detailed descriptions of the problem:
http://www.microsoft.com/technet/security/bulletin/ms08-067.mspx
http://support.microsoft.com/kb/958644

Discussion of the Security Development Lifecycle at MS:
http://blogs.msdn.com/sdl/archive/2008/10/22/ms08-067.aspx

Discussion of how they found the exploits in the wild:
http://blogs.technet.com/msrc/archive/2008/10/23/ms08-067-released.aspx

The trojans that are already using this exploit:
(TrojanSpy:Win32/Gimmiv.A and TrojanSpy:Win32/Gimmiv.A.dll)

It looks to use the SMB ports, and allows execution of code without authentication:
"Buffer underflow in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP1 and SP2, Vista Gold and SP1, and Server 2008 allows remote attackers to execute arbitrary code via a Server Message Block (SMB) request that contains a filename with a crafted length, aka "SMB Buffer Underflow Vulnerability." - NIST

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