[Freeipa-users] kinit seg-fault for Solaris 9

[Sumit Bose]

On Wed, Mar 27, 2013 at 10:44:53AM +0100, Martin Kosek wrote:
> On 03/27/2013 02:11 AM, David Redmond wrote:
> > Hi again,
> > 
> > I've got a bit more information. I've found that I can successfully kinit on
> > the Solaris 9 clients if, on the server, I change the user's password by:
> > 
> > ipa-getkeytab -s SERVER -p USER at REALM -k krb5.keytab -P
> > 
> > This works even if I delete the resulting keytab file. However, kinit on the
> > Solaris 9 client seg-faults if I set the user's password using the web gui, the
> > 'passwd' or 'kpasswd' commands, or even the `ipa user-mod --password` command.
> > 
> > There must be something different about how the ipa-getkeytab command stores
> > the password. Any help would be greatly appreciated.
> > 
> > Thanks,
> > Dave
> > ~""~
> > 
> > On Tue, Mar 26, 2013 at 4:05 PM, Rob Crittenden <rcritten at redhat.com
> > <mailto:rcritten at redhat.com>> wrote:
> > 
> >     David Redmond wrote:
> > 
> >         Hi,
> > 
> >         I've setup FreeIPA for the first time and am using it successfully with
> >         Linux and Solaris 10 clients. On 8 separate Solaris 9 clients I'm
> >         running into an issue where 'kinit USER', for any user, fails with a
> >         segmentation fault after prompting for a password. On the client side
> >         there are no log entries. On the server side the "Additional
> >         pre-authentication required" entry is written to the log. When I execute
> >         'kinit -k' everything works normally. I've verified that the keytabs for
> >         the Solaris 9 clients use only des-cbc-crc encryption and that
> >         allow_weak_crypto = true is set on the server side. Running 'truss kinit
> >         USER' on the Solaris 9 clients end with:
> >         Incurred fault #6, FLTBOUNDS  %pc = 0xFF3582E4
> >            siginfo: SIGSEGV SEGV_MAPERR addr=0x00000004
> >         Received signal #11, SIGSEGV (default)
> >            siginfo: SIGSEGV SEGV_MAPERR addr=0x00000004
> > 
> >         I've been fighting this for a while and have ensured that my Solaris 9
> >         boxes are running the latest patches. Kerberos on the clients is the
> >         standard one that comes with Solaris. I've installed no additional
> >         kerberos components or packages.
> > 
> >         I'm hoping someone has seen this before or can point me in a new
> >         direction. At this point I've pretty much reached the end of my rope and
> >         am looking at using local passwords (blech!) on my Solaris 9 clients.
> > 
> > 
> >     I don't have a very helpful answer, but if memory serves my Sparc 9 install
> >     exhibits the same behavior. I don't have access to the latest updates
> >     though so I assumed it was related to that.
> > 
> >     rob
> > 
> 
> Hello David,
> 
> Interesting... I checked the difference in the user account when I change the
> password with "ipa-getkeytab ... -P" and "ipa passwd" and I see that only
> krbPrincipalKey, krbLastPwdChange and krbExtraData changed:
> 
> # diff /tmp/1 /tmp/2
> 41,48c41,49
> < krbPrincipalKey:: MIIBn...UVrnGY=
> ---
> > krbPrincipalKey:: MIIBx...xRoWtMY
> 50,51c51,52
> < krbLastPwdChange: 20130327084336Z
> < krbExtraData:: AAI4sVJRcm9vdC9hZG1pbkBJRE0uTEFCLkJPUy5SRURIQVQuQ09NAA==
> ---
> > krbLastPwdChange: 20130327084406Z
> > krbExtraData:: AAJWsVJRZmJhckBJRE0uTEFCLkJPUy5SRURIQVQuQ09NAA==
> 
> I focused on krbExtraData and looked for differences, with "ipa passwd $USER",
> we set principal "root/admin at IDM.LAB.BOS.REDHAT.COM" (which looks strange to
> me), while with ipa-getkeytab -P sets the principal in krbExtraData to
> "fbar at IDM.LAB.BOS.REDHAT.COM". Simo, is this intended?

iirc this is the principal which changed the password the last time. Did
you run 'ipa passwd' and ipa-getkeytab with the same credentials?

bye,
Sumit

> 
> If no and David is willing to test it, I can prepare a scratch build of FreeIPA
> which would set user's principal to krbExtraData instead of root/admin at REALM.
> 
> Martin
> 
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