Zdenek Dohnal wrote:
> On 1/16/23 12:31, Björn Persson wrote:
> > Robert Marcano via devel wrote:  
> >> The admin can implement CUPS
> >> authentication but an ipp://localhost:60000 open port entirely open to
> >> anyone on the local machine to submit print jobs directly bypassing CUPS.  
> >
> > In that case it's also accessible to all the untrusted Javascript junk
> > that regularly runs in the user's browser. Because IPP is built on HTTP,
> > a Javascript program can tell the browser to send an IPP request. What
> > has been done to secure those "virtual printer devices" against DNS
> > rebinding attacks?
> > https://en.wikipedia.org/wiki/DNS_rebinding  
>
> I'll ask IPP-USB upstream about it, stay tuned.

What did upstream answer?

Björn Persson

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Description: OpenPGP digital signatur

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