14 Apr
2014
14 Apr
'14
9:43 a.m.
Hi,
It is mentioned in the documentation "Give all privileges to the xwiki
user for accessing and creating databases" - because the user to be able
to create additional databases for sub-wikis ; but isn't it a little
pushy to give *all* the privileges (Grant, reload...) to the xwiki user ?
How could I secure the xwiki mysql user account a little more ?
14 Apr
14 Apr
7:17 p.m.
Hello,
Giving "ALL PRIVILEGES" doesn't give the GRANT option, so basically, if you
run this command, it will give xwiki user all the rights, but to that one
only. Beyond that, I don't see how the reload privilege could be dangerous
at all to give.
The only way to make it more secure is to grant the rights for every
database, one by one.
We used to meet people having issues during wikis creations, because of
lack of privileges, that's why the documentation directly advise to give
all privileges to everything. So of course, you can also pick the exclusive
rights you want to grant, but since you need to do that for every database,
it may be a bit long.
Good luck
Guillaume
2014-04-14 9:43 GMT+02:00 Martin Hamant <mh(a)ow2.org>rg>:
Hi,
It is mentioned in the documentation "Give all privileges to the xwiki
user for accessing and creating databases" - because the user to be able to
create additional databases for sub-wikis ; but isn't it a little pushy to
give *all* the privileges (Grant, reload...) to the xwiki user ?
How could I secure the xwiki mysql user account a little more ?
_______________________________________________
users mailing list
users(a)xwiki.org
http://lists.xwiki.org/mailman/listinfo/users
15 Apr
15 Apr
10:37 a.m.
Hello,
I think GRANT right is needed, so xwiki db user can automatically assign
rights to created databases, isn't it ?
You have some ways to improve security, as using a strong password for
xwiki db user, limiting login from this specific server only, etc...
You could also give privilege needed to create new db only when you need it
(ie, you want to create a subwiki), and remove them afterwards (supposing
you control the subwiki creation process).
BR,
Jeremie
2014-04-14 19:17 GMT+02:00 Guillaume Fenollar <guillaume.fenollar(a)xwiki.com>
:
Hello,
Giving "ALL PRIVILEGES" doesn't give the GRANT option, so basically, if you
run this command, it will give xwiki user all the rights, but to that one
only. Beyond that, I don't see how the reload privilege could be dangerous
at all to give.
The only way to make it more secure is to grant the rights for every
database, one by one.
We used to meet people having issues during wikis creations, because of
lack of privileges, that's why the documentation directly advise to give
all privileges to everything. So of course, you can also pick the exclusive
rights you want to grant, but since you need to do that for every database,
it may be a bit long.
Good luck
Guillaume
2014-04-14 9:43 GMT+02:00 Martin Hamant <mh(a)ow2.org>rg>:
Hi,
It is mentioned in the documentation "Give all privileges to the xwiki
user for accessing and creating databases" - because the user to be able
to
create additional databases for sub-wikis ; but
isn't it a little pushy
to
give *all* the privileges (Grant, reload...) to
the xwiki user ?
How could I secure the xwiki mysql user account a little more ?
_______________________________________________
users mailing list
users(a)xwiki.org
http://lists.xwiki.org/mailman/listinfo/users
_______________________________________________
users mailing list
users(a)xwiki.org
http://lists.xwiki.org/mailman/listinfo/users
2:01 p.m.
Hi,
Nope, the Grant option is to allow the user using Grant command itself. A
user with Grant privileges can give to anybody else the same rights he
already possesses, but this GRANT option doesn't come with a "GRANT ALL
PRIVILEGES". See
https://dev.mysql.com/doc/refman/5.1/en/privileges-provided.html#priv_grant…
I don't see what you mean by "assign rights to created databases" Jeremie.
If you're using the default parameter which makes mysql bind on 127.0.0.1,
you only need to control who's able to connect to the machine with SSH.
2014-04-15 10:37 GMT+02:00 Jeremie BOUSQUET <jeremie.bousquet(a)gmail.com>om>:
Hello,
I think GRANT right is needed, so xwiki db user can automatically assign
rights to created databases, isn't it ?
You have some ways to improve security, as using a strong password for
xwiki db user, limiting login from this specific server only, etc...
You could also give privilege needed to create new db only when you need it
(ie, you want to create a subwiki), and remove them afterwards (supposing
you control the subwiki creation process).
BR,
Jeremie
2014-04-14 19:17 GMT+02:00 Guillaume Fenollar <
guillaume.fenollar(a)xwiki.com>
:
Hello,
Giving "ALL PRIVILEGES" doesn't give the GRANT option, so basically, if
you
run this command, it will give xwiki user all the
rights, but to that one
only. Beyond that, I don't see how the reload privilege could be
dangerous
at all to give.
The only way to make it more secure is to grant the rights for every
database, one by one.
We used to meet people having issues during wikis creations, because of
lack of privileges, that's why the documentation directly advise to give
all privileges to everything. So of course, you can also pick the
exclusive
rights you want to grant, but since you need to
do that for every
database,
it may be a bit long.
Good luck
Guillaume
2014-04-14 9:43 GMT+02:00 Martin Hamant <mh(a)ow2.org>rg>:
> Hi,
>
> It is mentioned in the documentation "Give all privileges to the xwiki
> user for accessing and creating databases" - because the user to be
able
to
_______________________________________________
users mailing list
users(a)xwiki.org
http://lists.xwiki.org/mailman/listinfo/users
create additional databases for sub-wikis ; but
isn't it a little pushy
to
give *all* the privileges (Grant, reload...) to
the xwiki user ?
How could I secure the xwiki mysql user account a little more ?
_______________________________________________
users mailing list
users(a)xwiki.org
http://lists.xwiki.org/mailman/listinfo/users
_______________________________________________
users mailing list
users(a)xwiki.org
http://lists.xwiki.org/mailman/listinfo/users
17 Apr
17 Apr
9:19 a.m.
Le 14/04/2014 19:17, Guillaume Fenollar a écrit :
Hello,
Giving "ALL PRIVILEGES" doesn't give the GRANT option, so basically, if you
run this command, it will give xwiki user all the rights, but to that one
only. Beyond that, I don't see how the reload privilege could be dangerous
at all to give.
The only way to make it more secure is to grant the rights for every
database, one by one.
We used to meet people having issues during wikis creations, because of
lack of privileges, that's why the documentation directly advise to give
all privileges to everything. So of course, you can also pick the exclusive
rights you want to grant, but since you need to do that for every database,
it may be a bit long.
Hi Guillaume,
You are right for ALL PRIVILEGES. I think I should have detailed the
background that led me to write the initial post. My concern is more
about human error than security and indeed the fact that the xwiki user
can alter *any* database : the other day I have installed another xwiki
instance using the same mysql user than another instance on the
server... but I did something wrong which is using the same database
name - 'xwiki' by default. So when I started the app, it upgraded all
the sql schemas of all databases of the other xwiki farm :)
So, now I have understood the following lessons:
- I will never use GRANT PRIVILEGES ON *.* to the xwiki mysql user. Here
is my current setup:
- I will tend to not share a single xwiki mysql user across multiple
xwiki instance.
That may sound logical but I wanted to share my experience ;)
Let's say I want to setup a xwiki farm called "foo". I'd call my xwiki
mysql user "uxwikifoo" and set a custom prefix to the databases that
xwiki will handle.
xwiki.cfg:
xwiki.db=main
xwiki.db.prefix=xwikifoo_
With the following grant statement:
grant all privileges on `xwikifoo\_%`.* to `uxwikiuser`@`localhost`
Now I am sure that the user 'uxwikifoo' is isolated will never be used
to potentially destroy/read/alter another database - which that be human
error or attack.
For my point of view - at first initial installation time, db
configuration could be done from the web UI assistant instead of editing
the hibernate file. It could also warn that the "the following databases
already exists and are going to be upgraded/destroyed". Overall I feel
there could be improvements like that to be implemented to the
installation process / assistant of xwiki.
Cheers !
4170
days inactive
4173
days old
5 comments
3 participants
participants (3)
-
Guillaume Fenollar -
Jeremie BOUSQUET -
Martin Hamant