[tor-bugs] #22688 [Core Tor/Tor]: HSDir3s should refuse direct client descriptor uploads and downloads, even if encrypted
Tor Bug Tracker & Wiki
blackhole at torproject.org
Wed Jun 21 22:31:57 UTC 2017
#22688: HSDir3s should refuse direct client descriptor uploads and downloads, even
if encrypted
-------------------------+-------------------------------------------------
Reporter: teor | Owner:
Type: defect | Status: new
Priority: Medium | Milestone: Tor: 0.3.1.x-final
Component: Core | Version: Tor: unspecified
Tor/Tor | Keywords: prop224, relay-safety,
Severity: Normal | 031-backport, no-030-backport
Actual Points: 0.2 | Parent ID:
Points: 0.2 | Reviewer:
Sponsor: |
-------------------------+-------------------------------------------------
handle_post_hs_descriptor and handle_get_hs_descriptor_v3 should check
that the connection is:
* encrypted, and
* not from a client (channel_is_client in 0.3.1.1-alpha and later
correctly identifies unauthenticated peers, which are clients and
bridges).
For extra safety, we can check if the circuit is from a relay.
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/22688>
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