Bug 542687 - krb5 1.7 locks AD accounts
krb5 1.7 locks AD accounts
Product: Fedora
Classification: Fedora
Component: krb5 (Show other bugs)
All Linux
low Severity high
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Assigned To: Nalin Dahyabhai
Fedora Extras Quality Assurance
Depends On:
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Reported: 2009-11-30 10:05 EST by arif
Modified: 2010-09-21 10:47 EDT (History)
2 users (show)

See Also:
Fixed In Version: 1.7.1-1.fc12
Doc Type: Bug Fix
Doc Text:
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Last Closed: 2010-09-21 10:47:47 EDT
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RHEL 7.3 requirements from Atomic Host:
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Description arif 2009-11-30 10:05:12 EST
Description of problem:

krb5 1.7, as installed on f12, when used with an Microsoft AD server tries incorrect passwords multiple times. As AD account lockouts are often configure theis will lock a users account on the first incorrect password.

Version-Release number of selected component (if applicable):

1.6 is fine, 1.7 is broken. 

How reproducible:


Steps to Reproduce:
1. configure krb5.conf to use a AD server 
2. kinit <user>
3. Enter incorrect password
Actual results:

$ kinit user
Password for user@example.com: 
kinit: Clients credentials have been revoked while getting initial credentials

Now the account is locked.

Expected results:

$ kinit
Password for user@example.com: 
kinit(v5): Preauthentication failed while getting initial credentials

Additional info:

See this thread on the krb5 mailing list

See http://mailman.mit.edu/pipermail/kerberos/2009-October/015375.html for a possible patch.
Comment 1 Troels Arvin 2010-02-03 05:35:04 EST
Probably a dupe of Bug #554351.
Comment 2 Nalin Dahyabhai 2010-02-03 12:07:18 EST
(In reply to comment #1)
> Probably a dupe of Bug #554351.    

Yep, it's the same one alright.  It should be fixed in 1.7.1, which I hope to get into updates-testing today.
Comment 3 Troels Arvin 2010-09-21 04:08:05 EDT
I think this bug can be closed; I haven't seen the problem since upgrading to the fixed krb package.
Comment 4 Nalin Dahyabhai 2010-09-21 10:47:47 EDT
Alright, then.  Thanks!

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