On 03/04/2015 05:01 PM, Vangelis Kyriakakis wrote:
> I have configured the following AuthorizeGroup command:
>
> AuthorizeGroup group permit service=shell cmd\* {task*#ADMIN-USER}
>
> What I would like to do is to be able to change the ADMIN-USER
> word on the fly.
> For example if User-Name is USER1 I would like the command to be
>
> AuthorizeGroup group permit service=shell cmd\* {task*#ADMIN-USER1}
>
> If User-Name is USER2 then it will be
>
> AuthorizeGroup group permit service=shell cmd\* {task*#ADMIN-USER2}
>
> and so on. Is there a way to do variable substitution or change
> the authorize rule on the fly (while the authorization request is being
> processed)?
See the reference manual section '5.96.11 AuthorizeGroupAttr'. Add
something like this in the ServerTACACSS+ configuration:
AuthorizeGroupAttr OSC-Authorize-Group
During the authentication, you can return 'group' as usually to set the
authorisation group for the user. In addition to this, you can now
return OSC-Authorize-Group with the user specific values.
For example:
<ServerTACACSPLUS>
GroupMemberAttr OSC-Group-Identifier
AuthorizeGroupAttr OSC-Authorize-Group
# Rest of the parameters
AuthorizeGroup group1 permit service=shell cmd=show cmd-arg=.*
AuthorizeGroup group1 deny .*
</SeverTACACSPLUS>
The attributes in Access-Accept for USER2 during the TACACS+
authentication would then look like this:
OSC-Group-Identifier = "group1"
AuthorizeGroupAttr = "permit service=shell cmd\* {task*#ADMIN-USER2}"
When the TACACS+ authorization requests are processed, this is the
effective list they are evaluated against:
AuthorizeGroup group1 permit service=shell cmd\* {task*#ADMIN-USER2}
AuthorizeGroup group1 permit service=shell cmd=show cmd-arg=.*
AuthorizeGroup group1 deny .*
In other words, the OSC-Authorize-Group attributes, there can be more
than one, returned during the authentication are evaluated before the
static configuration.
Thanks,
Heikki
--
Heikki Vatiainen <[email protected]>
Radiator: the most portable, flexible and configurable RADIUS server
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