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Professional Discussions => Security => Topic started by: icecream-guy on February 13, 2015, 07:14:21 AM

Title: Patch MS15-009 breaks Anyconnect
Post by: icecream-guy on February 13, 2015, 07:14:21 AM
if you haven't heard, deploying MS15-009 breaks Anyconnect clients

MS15-009 - Secure Channel cumulative update changes TLS protocol renegotiation and fallback behavior

link here
https://supportforums.cisco.com/discussion/12423591/latest-microsoft-feb-2015-patch-breaks-anyconnect-smc

we've tested AnyConnect version 3.1.05170  and 3.1.06079 which do not appear to be affected
there is a workaround by running vpnui.exe  in compatibility mode.
Title: Re: Patch MS15-009 breaks Anyconnect
Post by: deanwebb on February 13, 2015, 08:57:37 AM
Well, I hope it doesn't also break the way Windows negotiates wireless connections with its native client.