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Windows 7: Windows File-Sharing Zero-Day Allows for PC Takeover

20 Sep 2009   #1
Barman58

Windows 10 Pro x64 x2 Windows 10 Enterprise x64, Ubuntu
 
 
Windows File-Sharing Zero-Day Allows for PC Takeover

Windows File-Sharing Zero-Day Allows for PC Takeover

A new security vulnerability involving the Server Message Block protocol, used for Windows file-sharing, can allow a remote attacker to take control of a vulnerable Vista, Server 2008 or Windows 7 RC computer, in addition to causing it to crash as previously reported.

Security researchers found that the bug could be hit to cause the venerable Blue Screen of Death computer crash if a PC has file sharing enabled. But in Security Advisory 975497, released yesterday, Microsoft wrote that "an attacker who successfully exploited this vulnerability could take complete control of an affected system. Most attempts to exploit this vulnerability will cause an affected system to stop responding and restart."

A hole that allows for assuming control of a computer from across a network is about as bad as it gets, and I've asked for confirmation from Microsoft that this is in fact possible with this SMB flaw. Windows XP, 2000 and Server 2008 R2 are not at risk, nor is Windows 7 RTM.

More ...


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20 Sep 2009   #2
Tews

64-bit Windows 8.1 Pro
 
 

Thanks Nigel ... Nice Catch
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20 Sep 2009   #3
Barman58

Windows 10 Pro x64 x2 Windows 10 Enterprise x64, Ubuntu
 
 

I have a few RSS feeds that give me this sort of info on a regular basis - I've been a bit busy so not been checking them as often as I should - and when I do they're out of date

Will try to post more - good security will defeat most but it's useful to know what's about to better help others
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24 Sep 2009   #4
Lordbob75

Windows 7 Ultimate x64, Mint 9
 
 

Good to know we are safe then.

~Lordbob
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25 Sep 2009   #5
Barman58

Windows 10 Pro x64 x2 Windows 10 Enterprise x64, Ubuntu
 
 

When I'm asked by a client what is the best defence against malware, I tend to point them to the nearest mirror .

Most malware infections have a significant user contribution.

Good computing practices in tandem with the tools now available are an effective defence against even Zero Day Exploits
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 Windows File-Sharing Zero-Day Allows for PC Takeover




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