Hi:
Was this post's question answered? I have exactly the same problem. Is there
a good way around?
Roger
Arsen Hayrapetyan wrote:
>
> Hi all (especially developers),
>
> Long ago I posted a question about restriction of access to parts of the
> openca interfaces. There was no solution to it.
> I am trying to do this with RBAC, but the system is too rigid.
>
> The problem is following.
> I have two web-pages on my openca Public interface:
>
> 1) Page for users to request certificates
> 2) Page for administrators to request certificates for their hosts
>
> The first page is of public access, everybody can send a request for user
> certificate. However, the second page should be available to those users
> only (administrators), who posess valid user certificate from my CA. This
> is a common practice: to oblige host certificate requesters to have
> already the certificate from the given CA.
>
> I tried to use OpenCA RBAC mechanism to restrict access to the second
> page. For that I added a separate command HostCSR(basically the copy of
> basic_csr script for CSR generation) and modified rbac/acl.xml.template
> file to have the following:
>
> =============================================================
>
> (0|@pub_module_id@)
> .*
> csr new
> .*
>
>
>
> (0|@pub_module_id@)
> User
> csr new for hosts or services
> .*
>
> =============================================================
>
> As one can see everybody (regardless of the role assigned to their
> certificate/login name) is allowed to execute basic_csr script (first
> part), and only those with 'User' role are allowd ro execute the HostCSR
> (second part).
>
> Now when I log in with my User certificate (which is issued by my CA,
> registered with database on Public interface node, and has the role
> 'User' assigned), my certificate IS NOT retrieved from database and the
> role assigned to it IS NOT changed, because in access_control/pub.xml file
> which controls the authentication method for the interface I have
>
> ======================
>
> none
>
> ======================
>
> Apparently, I cannot have other authentication method because I need
> UNRESTRICTED access to user certificate request page.
>
> Later when it comes to execution of HostCSR command, the system examins
> the acl.xml file, fetches the role 'User' and compares it with the role of
> host certificate requester, which is EMPTY. As a result I have:
> "Permission denied" error.
>
> In fact the access control is controlled on the interface level (pub, ra,
> node), not at the level of commands. This is too rigid.
> What developers think about making access control more fine-grained?
>
> I would appreciate also any solution to this problem (currently I am
> implementing one: getting the DN of certificate which user uses to access
> the host CSR generation page from apache, searching for it in the
> database, check the role of the certificate found and granting access to
> the page, if the role is 'User'. But this solution is clumsy. I would
> like more light-weight one.)
>
> I am asking specially implementers of openca RBAC system not to ignore
> this e-mail.
>
> Thanks,
> Arsen.
>
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>
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