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Windows Updates Over SSL


All rights reserved.Newsletter|Contact Us|Privacy Statement|Terms of Use|Trademarks|Site Feedback {{offlineMessage}} Try Microsoft Edge, a fast and secure browser that's designed for Windows 10 Get started Microsoft Microsoft home Store Store home Devices It would be quite risky to give the power of updates to a hundred or so of CA, not all of which can be really trusted to do their job properly Stay logged in | Having trouble? share|improve this answer answered Mar 3 '13 at 14:04 Thomas Pornin 245k42577804 The fake certificate which is suppose to be included in the store, would it not trigger as his comment is here

Any advice and suggestions will be greatly appreciated. They are both called DetermineSubCAIdentity in wuaueng.dll and storewuauth.dll Using Nektra Deviare2, the function DetermineSubCAIdentity was hooked so that it always completed leaving EAX=3. Is the computer vulnerable during the wait for updates? What a disappointment….

Ssl/tls Error The Certificate Validation Failed

In order to actually work it would require that some 'insider' on your network also hijacked Group Policy and/or DNS. I used sslsplit and modified it to generate SHA256 digests. About Advertising Privacy Terms Help Sitemap Join millions of IT pros like you Log in to Spiceworks Reset community password Agree to Terms of Service Connect with Or Sign up with In the first step my Windows 7 tries to resolve the DNS name download.windowsupdate.com.

After that, all the communication takes place using https over IPv6. The easy part is having your SSL proxy generate something modern: like RSA>=2048 and SHA256RSA, etc. I haven’t heard before that Windows Update can be done over IPv6 (but this could just be me not looking hard enough ;)), so I was eager to test it out Schannel 36885 Windows 7 lextm It's very likely to be caused by Chrome's recently change on TLS side, http://chrisleed.com/chrome-version-50-err_ssl_fallback_beyond_minimum_version/ You might usehttps://www.nartac.com/Products/IISCryptoto review your Windows ciphers and make the necessary changes, and its FAQ page

Send to Email Address Your Name Your Email Address Cancel Post was not sent - check your email addresses! Kb 931125 View more stories A cryptographic certificate Microsoft generated three weeks ago to authenticate the servers used to deliver updates to hundreds of millions of Windows users has received a failing grade However doing it in memory with Deviare2 injected into a SYSTEM process, Windows 8.1 didn't seem to care. It's an older type of encryption which the POODLE exploit was centred around, so the sever hosting this cert should be updated as soon as possible.

download.microsoft.com: type CNAME, class IN, cname download.windowsupdate.nsatc.net download.windowsupdate.nsatc.net: type CNAME, class IN, cname main.dl.wu.akadns.net main.dl.wu.akadns.net: type CNAME, class IN, cname intl.dl.wu.akadns.net intl.dl.wu.akadns.net: type CNAME, class IN, cname dl.wu.ms.geo.akadns.net dl.wu.ms.geo.akadns.net: type CNAME, Windows Update Ssl That seems quite an assumption, and if the certificate is needed at all then it presumably needs to be strong; else why have it?(I'm not saying the problem does or doesn't Are these windows updates available over SSL?  Thank you.  Tuesday, September 08, 2015 9:04 PM Reply | Quote Answers 0 Sign in to vote WSUS uses SSL for metadata I'm just curious. 0 Datil OP utsec.net Mar 25, 2013 at 6:07 UTC Power Users, LLC is an IT service provider.

Kb 931125

I'm still doing a bit more testing on the actual patch, I'm not sure Win7 is affected by default yet… Reply Marc says: September 23, 2016 at 4:21 am Any solution How much are composers aware of the harmony structure they are using? Ssl/tls Error The Certificate Validation Failed First Name Last Name Email Join Now or Log In Oops, something's wrong below. Ssl Tls Secure Channel Error Yes NoSend feedback Sorry we couldn't be helpful.

from a theoretical perspective. this content I have a Windows 8 machine configured with a proxy in IE. Click on Complete Certificate Request on the right side Select the .cer file that your public certificate authority provided you, type in a friendly name (this can be anything), select Web The new certificate came as Microsoft revamped Windows Update to prevent such attacks from working in the future. 550 Tls Client Certificate Is Not Intended For Client Authentication

Great! Microsoft reduces the risk of sending update files over an unencrypted channel by signing each update. Hope this helps, Jack Reply ↓ Lasse August 18, 2015 at 6:24 am Exelent write-up. weblink What tactical situations made the use of traditional horse cavalry effective in World War II?

Back I agree 7 Replies Datil OP utsec.net Mar 25, 2013 at 4:31 UTC Power Users, LLC is an IT service provider. Kb931125 Download Through Windows Updates? Windows requires SHA256 on its update and store certificates or it fails with 0x803D000 The hard part is bypassing Windows checks that the CA Cert is Microsoft: Basically there are two

Found the problem.  The cert was not bound to port 443.  Once I bound it, I could check for and update all clients.  I did this by right clicking on Default

I made a video here: https://www.youtube.com/watch?v=EyDaTkU2sKY The code and technical write up is here: https://github.com/MiWCryptAnalytics/DetermineSubCAIdentity Thomas Pornin is correct in that you need to modify dll's -- When I modified the Most of the content wasn’t new for me, but one item caught my attention. This store is normally for validating signatures on drivers, not for SSL servers, but given the way Microsoft handles certificates, this may work and do what you want (I don't have Event Id 36885 While your example is certainly possible ..

However, if you really want to provide robust client-to-server authentication on internal resources, you should use IPSec, which authenticates at the *machine* level not at the application level (as SSL does). At least that's what Ivan Ristic, Qualys's director of engineering and an architect of the automated analysis tool, believes. "The SSL Labs report card alone is not enough because the update Email Password Log In Forgot your password? check over here And add the command for moving to port 443 / 80 instead of the 853x ports 🙂 Reply ↓ Jordan Cobb February 1, 2016 at 9:39 am Why cant you use

One step further down the road 😉 Final Conclusion: While it is great that Microsoft has implemented IPv6 support for Windows/Microsoft Update in the Windows 8/Server 2012 world, pesonally I find After a couple of packets transmitted, Windows 8.1 proceeds to connect to ds.download.windowsupdates.com (which has an A and AAAA record as seen in the Windows 7 section) and downloads the updates Join the community Back I agree Insinuator.net Bold Statements Primary Menu About RSS Feed Follow us Categories Breaking Building Events Misc Tags3G 4G advisory Black Hat C3 Cisco cloud Day-Con DHCPv6 allowed file size in an upload form?

What is the word for dragging motion of a finger on a trackpad? These articles are provided as-is and should be used at your own discretion. The certificate is also susceptible to an advanced attack unveiled last year that allows hackers to silently decrypt or tamper with encrypted traffic. Computer Configuration -> Administrative Templates -> Windows Components -> Internet Explorer -> Internet Control Panel -> Advanced Page -> Turn off encryption support This page has a little bit of information

Offering CBC mode ciphers in TLS1.0 is basically what marks site down in this test. If you're not worried about a rogue 'insider' getting to Group Policy or DNS, then it would be near impossible to redirect a client to a rogue WSUS server. Hope to see you there! I'm just wondering about the assertion that a weak SSL certificate matters more because something happens to be serving data over HTTPS to a web browser.)1) The cert doesn't chain to

Actually, the Windows 7 was just the installation on my notebook which I use for my daily work. So I started with this one. I installed a small lab consisting of a Windows 7 Enterprise x64, a Windows 8.1 Enterprise x64 and a Windows Server 2012 R2 machine all having a fully dual-stacked connection. Through Windows Updates?