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<H1>[Mageia-sysadm] Saving and sharing passwords in mageia teams</H1>
<B>nicolas vigier</B>
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TITLE="[Mageia-sysadm] Saving and sharing passwords in mageia teams">boklm at mars-attacks.org
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<I>Sat Feb 19 02:26:54 CET 2011</I>
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<PRE>On Sat, 19 Feb 2011, Buchan Milne wrote:
><i> On Friday, 18 February 2011 23:45:02 nicolas vigier wrote:
</I>><i> > Hello,
</I>><i> >
</I>><i> > We often need to register some accounts on various websites for the
</I>><i> > Mageia project (domain name registration, twitter, identica, etc ...).
</I>><i> > And we need to be able to share the account informations (login and
</I>><i> > password) with other people inside teams. So we need something like a
</I>><i> > password database, with permissions to restrict access to only some
</I>><i> > people or groups of people. We can store this database on Mageia servers,
</I>><i> > but I think it should be encrypted, so that root access on the server
</I>><i> > does not give access to the passwords.
</I>><i>
</I>><i> This is not an uncommon requirement, in my work environment we need to be able
</I>><i> to share the local root passwords (e.g. in case a system administrator needs
</I>><i> to be able to restore something that prevents user logins from working).
</I>><i>
</I>><i> However, in work environments, access to privileged passwords may need to be
</I>><i> auditable.
</I>
This tool could probably be used also outside Mageia.
><i>
</I>><i> > I have looked at existing tools, but didn't find one that would allow
</I>><i> > us to do this easily. So I'm thinking about writting some scripts to do
</I>><i> > it. It would work like this :
</I>><i> >
</I>><i> > - all users first need to upload their gnupg public key in ldap
</I>><i>
</I>><i> I was already considering the requirement for GPG public keys in LDAP for
</I>><i> 'privileged user password recovery'. E.g., use the same process as
</I>><i> unprivileged users, but encrypt the key sent to the user with their gpg public
</I>><i> key (providing a second level of authentication - if we consider access to the
</I>><i> mailbox one level).
</I>
Good idea !
><i> I believe there may also an LDAP-based keyserver, which could provide even
</I>><i> more re-use.
</I>
A keyserver using LDAP would be nice. If not too difficult to setup.
><i>
</I>><i> > - we have a command to create a password on the server, with a list
</I>><i> > of groups/users who can access this password :
</I>><i> > $ mgapassword create passwdname %group1 %group2 user1 user2 ...
</I>><i>
</I>><i> Should we leverage existing (e.g. LDAP) groups?
</I>
Yes, I think we should use ldap groups.
><i> > - a command to save the value of a password :
</I>><i> > $ mgapassword set passwdname < value
</I>><i> > or
</I>><i> > $ mgapassword edit passwdname
</I>><i> > - an other command to retrieve a password :
</I>><i> > $ mgapassword get passwdname
</I>><i> > - a command to list the passwords you can access :
</I>><i> > $ mgapassword list
</I>><i> >
</I>><i> > All commands connect to the server using ssh and the ldap account. When
</I>><i> > saving a password, the client ask to the server the list of gpg keys of
</I>><i> > all users who should have access to the password, then encrypt the
</I>><i> > password with all keys and send it encrypted to the server.
</I>><i>
</I>><i> Where are the passwords stored?
</I>
Stored on the server in encrypted files. Maybe in a database.
><i> > The command to retrieve a password connect to the server, then the server
</I>><i> > sends the password encrypted for the key of the user, which is decrypted
</I>><i> > locally using the private gpg key of the user.
</I>><i> >
</I>><i> > When new users are added into a group, they cannot access passwords
</I>><i> > immediatly (as it is not encrypted for their keys), so someone needs to
</I>><i> > retrieve and save the passwords, to encrypt them for the new users.
</I>><i>
</I>><i> This general approach was what I was considering for our work environment.
</I>><i>
</I>><i> > So, what do you think about this ? Or maybe someone knows existing tools
</I>><i> > that can do this ?
</I>><i>
</I>><i> I have not seen any I liked.
</I>><i>
</I>><i> Our work environment has a basic inventory database (the primary use was to
</I>><i> generate kickstart files), the web front end is in ... Catalyst (and possibly
</I>><i> try and implement a more complete CMDB). My plan was to integrate the CatDap
</I>><i> features into this (using CatalystX::Features maybe). Adding a shared password
</I>><i> module that could be tied into CatDap and our work webapp would also be
</I>><i> interesting to me.
</I>><i>
</I>><i> But, for now, a command-line tool would be adequate.
</I>><i>
</I>><i> I will look at the LDAP side (schema, ACLs, suoport for adding GPG public key
</I>><i> from CatDap) over the weekend.
</I>
Thanks.
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