[Fedora-directory-users] Re: password policy on FDS 1.0.2 - doesn't seem to work?

[George Holbert]

> Now, am I right in thinking that I can use "clear" as long as I'm using
> SSL to the LDAP server?

Yes, sending un-hashed passwords over SSL is very safe.


> What about setting local non-LDAP passwords with this set to "clear"
> isn't that dangerous?

No worries about this, pam_ldap password settings don't affect passwords 
stored locally in /etc/passwd.  Your /etc/pam.d/system-auth password stack 
for Linux LDAP clients probably looks something like the below:

password    requisite     /lib/security/$ISA/pam_cracklib.so retry=3 type=
password    sufficient    /lib/security/$ISA/pam_unix.so nullok use_authtok 
md5 shadow
password    sufficient    /lib/security/$ISA/pam_ldap.so use_authtok
password    required      /lib/security/$ISA/pam_deny.so

When setting local passwords, the stack will never even invoke pam_ldap, 
since the pam_unix line is "sufficient".



----- Original Message ----- 
From: "Philip Kime" <pkime at Shopzilla.com>
To: <fedora-directory-users at redhat.com>
Sent: Saturday, November 18, 2006 9:11 PM
Subject: [Fedora-directory-users] Re: password policy on FDS 1.0.2 - doesn't 
seem to work?


I think have have an idea about this now ... the problem seems to be the
exop password modify request. Subtree and user policies are ignored from

ldappasswd (which uses exop)
PAM (when pam_password is set to "exop" in /etc/ldap.conf)

But are ok from

Ldapmodify
PAM (when pam_password is set to "clear" in /etc/ldap.conf)

So, the RFC 3062 password modification requests seem to bypass the
subtree and user policies. I see this behaviour in 1.0.2 and 1.0.4.

Now, am I right in thinking that I can use "clear" as long as I'm using
SSL to the LDAP server? What about setting local non-LDAP passwords with
this set to "clear" isn't that dangerous? I can't use "ssha" for
pam_password as then password changes don't seem to work at all, which
is why I changed to "exop".

PK

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