Bug 1310834 - mod_auth_gssapi additional NTLM auth request from Chrome
mod_auth_gssapi additional NTLM auth request from Chrome
Status: CLOSED DUPLICATE of bug 1309041
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: mod_auth_gssapi (Show other bugs)
7.3
Unspecified Unspecified
unspecified Severity unspecified
: rc
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Assigned To: Simo Sorce
BaseOS QE - Apps
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Reported: 2016-02-22 13:03 EST by Petr Vobornik
Modified: 2016-03-22 10:11 EDT (History)
4 users (show)

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Doc Type: Bug Fix
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Last Closed: 2016-03-22 10:11:19 EDT
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Description Petr Vobornik 2016-02-22 13:03:44 EST
This bug is created as a clone of upstream ticket:
https://fedorahosted.org/freeipa/ticket/5614

Users are reporting a browser login popup in Windows Chrome (and IE?) browsers when attempting to log in to the IPA web UI.

According to Simo this is Chrome attempting to do NTLM auth by prompting the user for credentials.

An option is being worked on in upstream mod_auth_gssapi to not send additional WWW-Authenticate: negotiate requests: https://github.com/modauthgssapi/mod_auth_gssapi/pull/65

The pull request has more gory details on what is happening and why this wasn't seen in mod_auth_kerb.
Comment 1 Petr Vobornik 2016-02-22 13:05:38 EST
Moving to mod_auth_gssapi given that the plugin first needs to gain support for it.
Comment 2 Simo Sorce 2016-02-22 13:39:15 EST
Not that the upstream feature only prevents a second request if negotiate fails.
But it will not prevent sending the initial negotiate option.

So I am not sure that Chrome behavior will see any change in this case.
People should probably configure chrome to not do ntlm auth by default, it is a security issue anyway to allow default ntlm auth to random websites.
Comment 3 Simo Sorce 2016-03-22 10:11:19 EDT

*** This bug has been marked as a duplicate of bug 1309041 ***

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