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Bug 646499 - pam_krb5 requires self principal to be listed in .k5login
Summary: pam_krb5 requires self principal to be listed in .k5login
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: krb5
Version: 6.0
Hardware: All
OS: Linux
high
medium
Target Milestone: rc
: ---
Assignee: Nalin Dahyabhai
QA Contact: BaseOS QE Security Team
URL:
Whiteboard:
: 612046 (view as bug list)
Depends On: 539423
Blocks:
TreeView+ depends on / blocked
 
Reported: 2010-10-25 13:50 UTC by Zbysek MRAZ
Modified: 2018-11-14 19:23 UTC (History)
10 users (show)

Fixed In Version: krb5-1.9-1.el6
Doc Type: Bug Fix
Doc Text:
This field is the basis of the errata or release note for this bug. It can also be used for change logs. The Technical Note template, known as CCFR, is as follows: Cause Traditionally, if an account's home directory contained a .k5login file, attempts to access the system via telnet, ftp, rsh, or rlogin using Kerberos-based authentication would involve consulting the .k5login file for a list of Kerberos principals for whom access to the account should be allowed. The pam_krb5 module would use the same APIs to perform this check when called to perform authentication or account management. Consequence If a user's home directory contained a .k5login file, but the user's principal name was not listed in it, then pam_krb5 would deny the user access. Fix The updated krb5 package introduces the k5login_authoritative and k5login_directory options. These options, which can be set in /etc/krb5.conf, can be used to disable the .k5login-based authorization check or alter the location of the file which is consulted, respectively.
Clone Of: 539423
Environment:
Last Closed: 2011-05-19 13:12:01 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2011:0571 0 normal SHIPPED_LIVE krb5 bugfix update 2011-05-18 17:57:04 UTC

Comment 5 Dmitri Pal 2010-12-03 14:50:58 UTC 
*** Bug 612046 has been marked as a duplicate of this bug. ***
Comment 10 Florian Nadge 2011-05-07 09:36:27 UTC 
    Technical note added. If any revisions are required, please edit the "Technical Notes" field
    accordingly. All revisions will be proofread by the Engineering Content Services team.
    
    New Contents:
This field is the basis of the errata or release note for this bug. It can also be used for change logs.

The Technical Note template, known as CCFR, is as follows:

Cause
    What actions or circumstances cause this bug to present.
Consequence
    What happens when the bug presents.
Fix
    What was done to fix the bug.
Comment 11 Nalin Dahyabhai 2011-05-09 18:33:56 UTC 
    Technical note updated. If any revisions are required, please edit the "Technical Notes" field
    accordingly. All revisions will be proofread by the Engineering Content Services team.
    
    Diffed Contents:
@@ -3,8 +3,8 @@
 The Technical Note template, known as CCFR, is as follows:
 
 Cause
-    What actions or circumstances cause this bug to present.
+    Traditionally, if an account's home directory contained a .k5login file, attempts to access the system via telnet, ftp, rsh, or rlogin using Kerberos-based authentication would involve consulting the .k5login file for a list of Kerberos principals for whom access to the account should be allowed.  The pam_krb5 module would use the same APIs to perform this check when called to perform authentication or account management.
 Consequence
-    What happens when the bug presents.
+    If a user's home directory contained a .k5login file, but the user's principal name was not listed in it, then pam_krb5 would deny the user access.
 Fix
-    What was done to fix the bug.+    The updated krb5 package introduces the k5login_authoritative and k5login_directory options.  These options, which can be set in /etc/krb5.conf, can be used to disable the .k5login-based authorization check or alter the location of the file which is consulted, respectively.
Comment 12 errata-xmlrpc 2011-05-19 13:12:01 UTC 
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHBA-2011-0571.html
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