Educause Security Discussion mailing list archives
Re: Lessons learned disabling SSLv3
From: Will Froning <will.froning () GMAIL COM>
Date: Sat, 28 Mar 2015 23:59:55 -0500
Hello All, One thing to keep in mind, Outlook 2011 for Mac requires SSLv3 when connecting to Exchange. https://answers.microsoft.com/en-us/mac/forum/macoffice2011-macoutlook/outlook-2011-to-use-sslv3/7e777e6b-9e92-4a89-8874-d357c4bdf6ef Thanks, Will On Tue, Mar 24, 2015 at 10:47 AM, Woodruff, Dan < daniel.woodruff () rochester edu> wrote:
We are working to disable SSLv3 in favor of at least TLS1.0 (possibly higher) on all web servers at the University. We have some concerns about browser compatibility issues with the versions of TLS. All modern browsers support at least TLSv1.0 so we anticipate that the impact to our community will be low if we disabled only SSLv3. If we disabled TLSv1.0 as well, it seems more browsers would have compatibility issues. Source: http://en.wikipedia.org/wiki/Transport_Layer_Security For systems that are managed by the University, we can make broad configuration changes as needed, but we also have students and outside parties with machines not under our control. I’m wondering if other schools have gone through this effort to disable SSLv3 and/or TLSv1.0 and have any lessons learned or unexpected consequences they could share? Thanks in advance, Dan Woodruff University IT Security and Policy University of Rochester
-- Will Froning Will.Froning () GMail com
Current thread:
- Lessons learned disabling SSLv3 Woodruff, Dan (Mar 24)
- Re: Lessons learned disabling SSLv3 Jeff Borton (Mar 24)
- Re: Lessons learned disabling SSLv3 Rob Taylor (Mar 24)
- Re: Lessons learned disabling SSLv3 Childs, Aaron (Mar 24)
- Re: Lessons learned disabling SSLv3 William Clarke (Mar 24)
- Re: Lessons learned disabling SSLv3 Thomas Carter (Mar 24)
- Re: Lessons learned disabling SSLv3 McClenon, Brady (Mar 24)
- Re: Lessons learned disabling SSLv3 Thomas Carter (Mar 25)
- Re: Lessons learned disabling SSLv3 Brad Judy (Mar 25)
- Re: Lessons learned disabling SSLv3 Velislav K Pavlov (Mar 25)
- Re: Lessons learned disabling SSLv3 McClenon, Brady (Mar 24)
- Re: Lessons learned disabling SSLv3 Will Froning (Mar 28)