Date: Fri, 23 Nov 2007 20:01:23 -0800 From: "Kamil Kisiel" <kamil@kamilkisiel.net> To: "Christopher Cowart" <ccowart@rescomp.berkeley.edu>, freebsd-questions@freebsd.org Subject: Re: sudo never asks me for a password Message-ID: <66d392400711232001g53121aaeu6287612e8910be7f@mail.gmail.com> In-Reply-To: <66d392400711231931o498343cah71b61717546dc39c@mail.gmail.com> References: <66d392400711231543x42aea684l3752bbbdcb65d2c5@mail.gmail.com> <20071124030410.GH43532@hal.rescomp.berkeley.edu> <66d392400711231909h42ca826la5d8818864a78a4e@mail.gmail.com> <20071124031628.GI43532@hal.rescomp.berkeley.edu> <66d392400711231931o498343cah71b61717546dc39c@mail.gmail.com>
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On Nov 23, 2007 7:31 PM, Kamil Kisiel <kamil@kamilkisiel.net> wrote: > On Nov 23, 2007 7:16 PM, Christopher Cowart > > <ccowart@rescomp.berkeley.edu> wrote: > > On Fri, Nov 23, 2007 at 07:09:36PM -0800, Kamil Kisiel wrote: > > > On 11/23/07, Christopher Cowart <ccowart@rescomp.berkeley.edu> wrote: > > > > On Fri, Nov 23, 2007 at 03:43:39PM -0800, Kamil Kisiel wrote: > > > > > For some reason, on this particular FreeBSD machine, sudo never asks > > > > > me for a password, even if I haven't logged in for days. > > > > > > > > > > I've been struggling with this problem for some time but still haven't > > > > > been able to find a solution. Any ideas? > > > > > > > > Maybe something is misconfigured in your pam stack? Check > > > > /etc/pam.d/sudo. > > > > > > /etc/pam.d/sudo looks like this: > > > > > > # > > > # $FreeBSD: src/etc/pam.d/su,v 1.16 2003/07/09 18:40:49 des Exp $ > > > # > > > # PAM configuration for the "su" service > > > # > > > > > > # auth > > > auth sufficient pam_rootok.so no_warn > > > auth sufficient pam_self.so no_warn > > > auth requisite pam_group.so no_warn > > > group=wheel root_only fail_safe > > > auth include system > > > > > > # account > > > account include system > > > > > > # session > > > session required pam_permit.so > > > > This looks like it was copied verbatim from su. > > > > I suspect the pam_self.so is causing problems. Sudo authenticates the > > user for their current account, not the target account. That line will > > cause authentication to short-circuit on a UID match w/o any need to > > provide a password. Try commenting it out. > > > > -- > > > > Chris Cowart > > Lead Systems Administrator > > Network & Infrastructure Services, RSSP-IT > > UC Berkeley > > > > Thanks Christopher, > > That's exactly the problem. Seems the previous administrator of this > machine made /etc/pam.d/sudo a link to /etc/pam.d/su and left it > configured as is. Somehow I never caught on to that. > > -- > Kamil > Alright, maybe my impression of success was slightly premature. It seems that the problem now is that sudo doesn't like the pam_unix.so module for whatever reason. If I use the default sudo pam file, which simply includes all settings from /etc/pam.d/system it gives me an error like the following: sudo: pam_authenticate: conversation failure -- Kamil
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