Created attachment 343212 [details] ssh_config and ssh -vvv output Description of problem: When logging into a server over ssh using my Kerberos credentials the are not delegated to the remote host. Version-Release number of selected component (if applicable): krb5-*-1.6.3-20.f11.x86_64 openssh*-5.2p1-2.f11.x86_64 How reproducible: Always Steps to Reproduce: 1. Enable GSSAPI delegation and authentication in ssh_config. 2. kinit credentials 3. ssh to remote host 4. klist Actual results: No credentials show up. Expected results: Credentials should show up. Additional info: Tested against CentOS 5.3 servers. Works as expected with Centos 5.3, F10, and OS X 10.5 clients.
What is the version of buggy openssh?
I'm suspecting this is a bug in the openssh-clients package which is currently at version 5.2p1 release 2.fc11.
I can confirm that. The 5.2p1 client writes in the debug output that it's delegating credentials, but they are not delegated. The 4.3p2 client in RHEL-5 works fine.
This is caused by krb5-auth-dialog. If the original ticket is from kinit it is delegated fine, if it is from krb5-auth-dialog, it is not delegated.
And the reason is the kinit by default makes the tickets flagged forwardable, the krb5-auth-dialog not.
I just noticed this last night oddly enough. This sounds like a bug in krb5-auth-dialog, no? It should be listening to the defaults in /etc/krb5.conf.
This bug appears to have been reported against 'rawhide' during the Fedora 11 development cycle. Changing version to '11'. More information and reason for this action is here: http://fedoraproject.org/wiki/BugZappers/HouseKeeping
New upgrade of krb5-auth-dialog was provided as https://admin.fedoraproject.org/updates/krb5-auth-dialog-0.10-1.fc11, which may affect this bug. Please retest and let us know, whether you can still reproduce this bug.
I was also seeing this bug as originally reported: krb5-auth-dialog-0.8 acquired non-forwardable tickets. I confirm that krb5-auth-dialog-0.10-1.fc11 does acquire forwardable tickets, thereby fixing this problem. Strangely, krb5-auth-dialog-0.10-1.fc11 acquires forwardable tickets even though "forwardable" is not checked in the "Ticket Options" section of its preferences dialog. I suppose that ought to be treated as a distinct bug, though.
(In reply to comment #9) > Strangely, krb5-auth-dialog-0.10-1.fc11 acquires forwardable tickets even > though "forwardable" is not checked in the "Ticket Options" section of its > preferences dialog. I suppose that ought to be treated as a distinct bug, > though. Yes, please, I would love to know what ancient bugs we can forget about.
Created attachment 365465 [details] some Debian patches to consider (1/3)
Created attachment 365466 [details] some Debian patches to consider (2/3) This is probably just a cosmetic change
Created attachment 365467 [details] some Debian patches to consider (3/3)
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