[tor-bugs] #26882 [Core Tor/Tor]: IP address is not scrubbed in info logs, channel_tls_process_netinfo_cell()

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#26882: IP address is not scrubbed in info logs, channel_tls_process_netinfo_cell()
------------------------------+---------------------------------
     Reporter:  dmr           |      Owner:  (none)
         Type:  defect        |     Status:  new
     Priority:  Medium        |  Milestone:
    Component:  Core Tor/Tor  |    Version:
     Severity:  Normal        |   Keywords:  tor-client, tor-doc
Actual Points:                |  Parent ID:
       Points:                |   Reviewer:
      Sponsor:                |
------------------------------+---------------------------------
 Here's a log snippet from an `info` log I was manually reviewing to scrub
 before sharing.
 {{{
 [info] channel_tls_process_netinfo_cell(): Got good NETINFO cell from
 [scrubbed]:443; OR connection is now open, using protocol version 5. Its
 ID digest is <redacted>. Our address is apparently <redacted>.
 }}}
 In the above, `<redacted>` is my notation; `[scrubbed]` is from
 SafeLogging.
 (I'm not sure I had to redact the digest, but was just being
 conservative.)

 `SafeLogging 1` was set (default).
 Tor `0.3.3.7`

 asn mentioned on #tor-dev that he thinks this is a bug.
 Some brief notes from asn:
 > "<none>" : fmt_and_decorate_addr(&my_apparent_addr));
 > hm yeah that's I think a bug
 > it should be safe_str_client()
 > so weird that no one has mentioned htis before

 It's worth noting the manpage for `SafeLogging` says:
 > ...
 > If this option is set to 0, Tor will not perform any scrubbing, if it is
 set to 1, all potentially sensitive strings are replaced.
 > ...

 arma advocated for a different resolution:
 > if i were filing this ticket i would file a "scale back safelogging
 claims in the man page" ticket :)

 (My preference is to scrub the IP address, but I also acknowledge the
 rabbit hole of trying to scrub anything "sensitive", especially in
 info/debug logs)

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/26882>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online

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