PAM [error: /lib/security/pam_smbpass.so

[yamo]

Hi,

Since I've updated from gutsy to hardy heron I have manay many messages in /var/log/auth.log :

Apr 16 11:08:31 mostro gdm[5675]: pam_unix(gdm:auth): authentication failure; logname= uid=0 euid=0 tty=:0 ruser= rhost=
Apr 16 11:08:33 mostro gdm[5675]: PAM unable to dlopen(/lib/security/pam_smbpass.so)
Apr 16 11:08:33 mostro gdm[5675]: PAM [error: /lib/security/pam_smbpass.so: Ne peut ouvrir le fichier d'objet partagé: Aucun fichier ou dossier de ce type]
Apr 16 11:08:33 mostro gdm[5675]: PAM adding faulty module: /lib/security/pam_smbpass.so
Apr 16 11:08:33 mostro gdm[5675]: pam_unix(gdm:auth): check pass; user unknown
Apr 16 11:08:33 mostro gdm[5675]: pam_unix(gdm:auth): authentication failure; logname= uid=0 euid=0 tty=:0 ruser= rhost=
Apr 16 11:08:34 mostro gdm[5675]: PAM unable to dlopen(/lib/security/pam_smbpass.so)
Apr 16 11:08:34 mostro gdm[5675]: PAM [error: /lib/security/pam_smbpass.so: Ne peut ouvrir le fichier d'objet partagé: Aucun fichier ou dossier de ce type]
Apr 16 11:08:34 mostro gdm[5675]: PAM adding faulty module: /lib/security/pam_smbpass.so
Apr 16 11:08:34 mostro gdm[5675]: pam_unix(gdm:auth): check pass; user unknown
Apr 16 11:08:34 mostro gdm[5675]: pam_unix(gdm:auth): authentication failure; logname= uid=0 euid=0 tty=:0 ruser= rhost=

 uname -a
Linux mostro 2.6.24-16-generic #1 SMP Thu Apr 10 13:23:42 UTC 2008 i686 GNU/Linux

 gnome-about --version
GNOME gnome-about 2.22.1

$ cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=8.04
DISTRIB_CODENAME=hardy
DISTRIB_DESCRIPTION="Ubuntu 8.04"

[yamo (stephane-gregoire)]

In /var/log/syslog
 I have this :

Apr 16 11:28:01 mostro gdm[5675]: WARNING: Impossible d'identifier l'utilisateur

$ gdm --version
GDM 2.20.5

[Kees Cook (kees)]

Thanks for taking the time to report this bug and helping to make Ubuntu better. We appreciate the difficulties you are facing, but this appears to be a "regular" (non-security) bug. I have unmarked it as a security issue since this bug does not show evidence of allowing attackers to cross privilege boundaries nor directly cause loss of data/privacy. Please feel free to report any other bugs you may find.

[Jamie Strandboge (jdstrand)]

Reassigning to samba: pam_smbpass.so is in the libpam-smbpass package which is part of samba source package.

[Jamie Strandboge (jdstrand)]

Erm, my mistake-- this really is a pam problem as it defines the optional pam_smbpass module. Putting it back to pam.

[Steve Langasek (vorlon)]

This is a duplicate of bug #216990. We will work on cleaning up this logging information for hardy; please note however that these log messages are entirely advisory and in the case of pam_smbpass don't indicate a problem with your system.

[yamo (stephane-gregoire)]

Thanks a lot!

[NoOp (glgxg)]

While this may be considered a duplicate of 216990 and even https://bugs.launchpad.net/ubuntu/+bug/222003, I found that I could no longer VNC into a recently upgraded Gutsty to Hardy. I would receive a password prompt, but continue to get authentication errors. It was only after looking at the auth.log and seeing the same messages as yamo that I finally found the problem:

libpam-smbpass was not installed during the upgrade.

Installing libpam-smbpass (sudo apt-get install libpam-smbpass) immediately fixed the problem.

[Krishna E. Bera (keb)]

i didnt want any samba support,
so instead i commented out all the lines in the files in /etc/pam.d containing pam_smbpass .
the lines were all 'optional' but maybe there is a bug in the new pam that ignores it.