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Recently published SChannel exploit for WIndows

Posted on 2014-11-16
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Last Modified: 2014-11-17
Hi Folks:

What do you all make of this recent CERT alert about the Microsoft SChannel vulnerability that allows remote exploits of WIndows systems? https://www.us-cert.gov/ncas/alerts/TA14-318A

My concern is that all the Microsoft articles to which it makes reference makes it seem like everything is sufficiently patched if you're up to date. So what exactly is new here? Is this a real new exploit? On the one hand, Microsoft articles reference various patches for different OSes that take care of different vulnerabilities. On the other hand, the guy exposing the exploit says Microsoft won't have a patch ready till December.

This seems confusing and contradictory. What do y'all think?

Thanks,
Dana
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Question by:Dana Friedman
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6 Comments
 
LVL 97

Accepted Solution

by:
John Hurst earned 1000 total points
ID: 40445923
What I have read is as thick as mud. What I took away from it was to patch all workstations and servers, which is what we have done. I am sure more patches will come.

http://www.zdnet.com/drop-what-youre-doing-and-patch-the-windows-schannel-bugs-now-7000035738/?s_cid=e589&ttag=e589&ftag=TREc64629f
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LVL 83

Assisted Solution

by:David Johnson, CD, MVP
David Johnson, CD, MVP earned 1000 total points
ID: 40446039
it is a 19 year old problem that has been fixed. and the addition of 4 more suites.  Windows XP unless you are using the 'embedded' patch is significantly vunerable to this exploit
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Author Comment

by:Dana Friedman
ID: 40447104
David:

What do you mean "and the addition of 4 more suites"? Four more Microsoft Office suites? Something else?

Thanks,
Dana
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Author Closing Comment

by:Dana Friedman
ID: 40447106
Thanks to you both. I'm not sure what David's "addition of 4 more suites" refers to, but I found both to be very helpful.

Thanks,
Dana
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LVL 97

Expert Comment

by:John Hurst
ID: 40447108
Thanks.   I think you just need to be sure all current patches are up to date
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LVL 83

Expert Comment

by:David Johnson, CD, MVP
ID: 40447294
4 more security protcol suites

    TLS_DHE_RSA_WITH_AES_256_GCM_SHA384
    TLS_DHE_RSA_WITH_AES_128_GCM_SHA256
    TLS_RSA_WITH_AES_256_GCM_SHA384
    TLS_RSA_WITH_AES_128_GCM_SHA256
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