[tor-bugs] #7875 [Core Tor/Tor]: debian obfsproxies can't advertise ports under 1024

Tor Bug Tracker & Wiki blackhole at torproject.org
Tue Mar 13 16:08:35 UTC 2018


#7875: debian obfsproxies can't advertise ports under 1024
-------------------------------------------------+-------------------------
 Reporter:  arma                                 |          Owner:  asn
     Type:  defect                               |         Status:  new
 Priority:  Medium                               |      Milestone:  Tor:
                                                 |  unspecified
Component:  Core Tor/Tor                         |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  tor-bridge, tor-pt, privileges,      |  Actual Points:
  low-ports, review-group-34                     |
Parent ID:                                       |         Points:
 Reviewer:                                       |        Sponsor:
-------------------------------------------------+-------------------------

Comment (by dcf):

 Cross-referencing #18356 / [https://bugs.debian.org/cgi-
 bin/bugreport.cgi?bug=865495 Debian #865495], which say that these days,
 `setcap` alone is not enough: you also have to work around systemd
 hardening. Specifically, you have to set `NoNewPrivileges=no` in
 /lib/systemd/system/!tor at default.service and
 /lib/systemd/system/tor at .service and then run `systemctl daemon-reload`.
 This has been the case since 0.2.7.4-rc-1 (October 2015).

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/7875#comment:26>
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