Date: Fri, 23 Nov 2007 19:31:25 -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: <66d392400711231931o498343cah71b61717546dc39c@mail.gmail.com> In-Reply-To: <20071124031628.GI43532@hal.rescomp.berkeley.edu> References: <66d392400711231543x42aea684l3752bbbdcb65d2c5@mail.gmail.com> <20071124030410.GH43532@hal.rescomp.berkeley.edu> <66d392400711231909h42ca826la5d8818864a78a4e@mail.gmail.com> <20071124031628.GI43532@hal.rescomp.berkeley.edu>
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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
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