> On 17 Feb 2020, at 12:19, Grant Byers <grant.by...@aarnet.edu.au> wrote:
>
> Hi,
>
> In an effort to tighten search and read permissions on our internal
> directory server, we've limited accounts to read certain attributes of
> "self". They have search on the entire tree, but otherwise no read
> perms. This is all well and good for clients that utilize the memberOf
> attribute of self, but not so good for applications that utilize
> memberUid, or insist on searching for groupOfUniqueNames or
> groupOfNames then enumerating them programmatically to determine which
> groups the user belongs to after binding as the user.
>
> So. I've been reading docs and haven't been able to find anything, but I
> was wanting to do something like this;
>
>
> dn: ou=groups,dc=example,dc=com
> aci: (targetattr = "*")
> (targetfilter = "(&(objectClass=groupOfUniqueNames)(uniqueMember={{rdn
> of self}})")
> (version 3.0; acl "Allow authenticated users to read own group
> membership"; allow (read,compare,search)
> (userdn="ldap:///all";);)
>
>
> where the target filter limits results to only those that match
> uniqueMember={{rdn of self}}
>
>
> Is this possible?
Yes, but I'd suggest you tighten it up a bit. targetattr = * is really
dangerous, it really means everything, including internal system attributes.
You probably want "(targetattr = "objectClass || uniquemember || cn ||
memberUid || member || memberOf")(targetfilter = "....")
There is a section in the redhat ds guide that may help a lot
https://access.redhat.com/documentation/en-us/red_hat_directory_server/10/html/administration_guide/managing_access_control
In general, keep your aci's as targeted and as specific as possible.
I'm very happy to review these further if you need :)
>
>
> Thanks,
> Grant
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—
Sincerely,
William Brown
Senior Software Engineer, 389 Directory Server
SUSE Labs
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