Security
NTLMv1 auth has been disabled, NTLM support on non-Windows platforms is now deprecated
- Bug 828183 ? Firefox enables insecure NTLM (pre-NTLMv2) authentication
- Bug 999306 ? Allow generic NTLM v1 if pref set
- Bug 1023748 ? Allow NTLMv1 over SSL/TLS, or intranet access is broken on Firefox 30 for non-Windows platforms
The support for the NT LAN Manager version 1 (NTLMv1) network authentication has been disabled because it's known as insecure. Companies and organizations still deploying the older protocol should upgrade to NTLMv2. See Honza Bambas' blog post and Jason Duell's post to the dev-planning list for details.
This is affecting SharePoint-based or IIS-backed intranet applications. If you encounter any problems on Firefox 30 or later, you can manually enable NTLMv1 using a preference. Note that NTLMv2 is not supported on non-Windows platforms, so OS X and Linux users have to toggle the preference to continue using NTLMv1 as below, though the NTLM auth support on non-Windows platforms is considered deprecate d.
How to enable NTLMv1: type about:config in the location bar, click the "I'll be careful" button, find network.negotiate-auth.allow-insecure-ntlm-v1, double-click on it to change the value to true.
You can check to see if NTLMv2 is enabled using the following: https://www.imss.caltech.edu/node/395
You can check to see if NTLMv2 is enabled using the following: https://www.imss.caltech.edu/node/395
On Mon, Jun 16, 2014 at 9:15 AM, Dario Lesca <d.lesca@xxxxxxxxxx> wrote:
After last firefox update the NTLM auth do not work anymore.
I have download the previous version of FF from Fedora old repo
(firefox-29.0.1-1.fc20.x86_64.rpm) and install it: NTLM auth work.
(NOTE: "yum downgrade firefox" do not work with this error)
> Resolving Dependencies
> --> Running transaction check
> ---> Package firefox.x86_64 0:25.0-3.fc20 will be a downgrade
> --> Processing Dependency: libxul.so(xul25.0)(64bit) for package: firefox-25.0-3.fc20.x86_64
> ---> Package firefox.x86_64 0:30.0-4.fc20 will be erased
> --> Processing Conflict: firefox-25.0-3.fc20.x86_64 conflicts xulrunner(x86-64) > 25.1
> --> Finished Dependency Resolution
> Error: firefox conflicts with xulrunner-30.0-1.fc20.x86_64
I have also download FF from FF web site and the problem is the same:
FF30 do not work, FF 29 work.
Some suggest ?
Thanks
--
Dario Lesca
(inviato dal mio Linux Fedora 20 con Gnome 3.10.4)
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