Good to hear! Depending on how far you want to take it, you can then scan
the initial request coming in from the client (and the final response) for
raw Solr fields -- that shouldn't happen. I've used mod_security as a
general-purpose application firewall and would recommend it.
k/r,
Scott
On Wed, Nov 4, 2015 at 1:40 PM, Douglas McGilvray <d...@weemondo.com> wrote:
>
> Thanks Alessandro, I had overlooked the highlighting component.
>
> I will also add a reminder to exclude these fields from spellcheck fields,
> (or maintain different spellcheck fields for different roles).
>
> @Scott - Once I started planning my code the penny finally dropped
> regarding your point about aliasing the fields - it removes the need for
> calculating which fields to request in the app itself.
>
> Regards,
> D
>
>
> > On 4 Nov 2015, at 14:53, Alessandro Benedetti <abenede...@apache.org>
> wrote:
> >
> > Of course it depends of all the query parameter you use and you process
> in
> > the response.
> > The list you wrote should be ok if you use only those components.
> >
> > For example if you use highlight, it's not ok and you need to take care
> of
> > the highlighted fields as well.
> >
> > Cheers
> >
> > On 30 October 2015 at 14:51, Douglas McGilvray <d...@weemondo.com> wrote:
> >
> >>
> >> Scott thanks for the reply. I like the idea of mapping all the
> fieldnames
> >> internally, adding security through obscurity. My question therefore
> would
> >> be what is the definitive list of query parameters that one must filter
> to
> >> ensure a particular field is not exposed in the query response? Am I
> >> missing in the following?
> >>
> >> fl
> >> facect.field
> >> facet.pivot
> >> json.facet
> >> terms.fl
> >>
> >>
> >> kr
> >> Douglas
> >>
> >>
> >>> On 30 Oct 2015, at 07:37, Scott Stults <
> >> sstu...@opensourceconnections.com> wrote:
> >>>
> >>> Douglas,
> >>>
> >>> Managing a per-user-group whitelist of fields outside of Solr seems the
> >>> best approach. When the query comes in you can then filter out any
> fields
> >>> not contained in the whitelist before you send the request to Solr. The
> >>> easy part will be to do that on URL parameters like fl. Depending on
> how
> >>> your app generates the actual query string, you may want to also scan
> >> that
> >>> for fielded query clauses (eg "badfield:value") and localParams (eg
> >>> "{!dismax qf=badfield}value").
> >>>
> >>> Secondly, you can map internal Solr fields to aliases using this syntax
> >> in
> >>> the fl parameter: "display_name:real_solr_name". So when the request
> >> comes
> >>> in from your app, first you'll map from the requested field alias names
> >> to
> >>> internal Solr names (while enforcing the whitelist), and then in the fl
> >>> parameter supply the aliases you want sent in the response.
> >>>
> >>>
> >>> k/r,
> >>> Scott
> >>>
> >>> On Wed, Oct 28, 2015 at 6:58 PM, Douglas McGilvray <d...@weemondo.com>
> >> wrote:
> >>>
> >>>> Hi all,
> >>>>
> >>>> First I’d like to say the nested facets and the json facet api in
> >>>> particular have made my world much better, I thank everyone involved,
> >> you
> >>>> are all awesome.
> >>>>
> >>>> In my implementation has much of the solr query building working on
> the
> >>>> browser, solr is behind a php server which acts as “proxy” and
> doorman,
> >>>> filtering at the document level according to user role and supplying
> >> some
> >>>> sensible maximums …
> >>>>
> >>>> However we now wish to filter just one or two potentially sensitive
> >> fields
> >>>> in one document type according to user role (as determined in the php
> >>>> proxy). Duplicating documents (or cores) seems like overkill for just
> >> two
> >>>> fields in one document type .. I wondered if it would be feasible (in
> >> the
> >>>> interests of preventing malicious activity) to filter the query itself
> >>>> whether it be parameters (fl, facet.fields, terms, etc) … or even deny
> >> any
> >>>> request in which fieldname occurs …
> >>>>
> >>>> Is there someway someone might obscure a fieldname in a request?
> >>>>
> >>>> Kind Regards & thanks in davacne,
> >>>> Douglas
> >>>
> >>>
> >>>
> >>>
> >>> --
> >>> Scott Stults | Founder & Solutions Architect | OpenSource Connections,
> >> LLC
> >>> | 434.409.2780
> >>> http://www.opensourceconnections.com
> >>
> >>
> >
> >
> > --
> > --------------------------
> >
> > Benedetti Alessandro
> > Visiting card : http://about.me/alessandro_benedetti
> >
> > "Tyger, tyger burning bright
> > In the forests of the night,
> > What immortal hand or eye
> > Could frame thy fearful symmetry?"
> >
> > William Blake - Songs of Experience -1794 England
>
>
--
Scott Stults | Founder & Solutions Architect | OpenSource Connections, LLC
| 434.409.2780
http://www.opensourceconnections.com
