[tor-bugs] #7836 [Tor]: Incorrect "non-loopback address" warnings

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#7836: Incorrect "non-loopback address" warnings
---------------------+------------------------------------------------------
 Reporter:  fk       |          Owner:                    
     Type:  defect   |         Status:  new               
 Priority:  trivial  |      Milestone:                    
Component:  Tor      |        Version:  Tor: 0.2.4.7-alpha
 Keywords:           |         Parent:                    
   Points:           |   Actualpoints:                    
---------------------+------------------------------------------------------
 When running Tor in a FreeBSD jail with the IP address 10.0.0.2, a torrc
 that contains these directives:

 TransListenAddress 127.0.0.1
 SocksListenAddress 10.0.0.2
 ControlListenAddress 127.0.0.1

 Results in these messages:
 {{{
 Dec 31 11:27:31.879 [notice] Tor v0.2.4.7-alpha (git-e46e1ed1bc50ad24)
 (with bufferevents) running on FreeBSD with Libevent 2.0.16-stable and
 OpenSSL 1.0.1c.
 Dec 31 11:27:31.880 [notice] Tor can't help you if you use it wrong! Learn
 how to be safe at https://www.torproject.org/download/download#warning
 Dec 31 11:27:31.880 [notice] This version is not a stable Tor release.
 Expect more bugs than usual.
 Dec 31 11:27:31.880 [notice] Read configuration file
 "/usr/local/etc/tor/torrc".
 Dec 31 11:27:31.893 [notice] You configured a non-loopback address
 '10.0.0.2:9050' for SocksPort. This allows everybody on your local network
 to use your machine as a proxy. Make sure this is what you wanted.
 Dec 31 11:27:31.893 [notice] You configured a non-loopback address
 '10.0.0.2:9050' for DNSPort. This allows everybody on your local network
 to use your machine as a proxy. Make sure this is what you wanted.
 Dec 31 11:27:31.893 [notice] You configured a non-loopback address
 '10.0.0.2:9050' for TransPort. This allows everybody on your local network
 to use your machine as a proxy. Make sure this is what you wanted.
 [...]
 Dec 31 11:27:31.895 [notice] You configured a non-loopback address
 '10.0.0.2:9050' for SocksPort. This allows everybody on your local network
 to use your machine as a proxy. Make sure this is what you wanted.
 Dec 31 11:27:31.895 [notice] You configured a non-loopback address
 '10.0.0.2:9050' for DNSPort. This allows everybody on your local network
 to use your machine as a proxy. Make sure this is what you wanted.
 Dec 31 11:27:31.895 [notice] You configured a non-loopback address
 '10.0.0.2:9050' for TransPort. This allows everybody on your local network
 to use your machine as a proxy. Make sure this is what you wanted.
 Dec 31 11:27:31.895 [notice] Opening Socks listener on 10.0.0.2:9050
 Dec 31 11:27:31.896 [notice] Opening DNS listener on 127.0.0.1:53
 Dec 31 11:27:31.896 [notice] Opening Transparent pf/netfilter listener on
 127.0.0.1:9040
 Dec 31 11:27:31.896 [notice] Opening Control listener on 127.0.0.1:9051
 Dec 31 11:27:31.896 [notice] Opening Control listener on /var/run/tor/tor-
 socket
 }}}

 The fact that some messages are shown twice is #4019, this report is about
 the incorrect warnings for the listeners on 127.0.0.1. It looks like the
 Socks address 10.0.0.2:9050 is used for all complaints.

 With a torrc that contains these directives:

 TransListenAddress 127.0.0.1
 SocksListenAddress 127.0.0.1
 ControlListenAddress 127.0.0.1

 No warnings are shown, even though the risk (in the described FreeBSD
 jail) is equivalent.

 {{{
 Dec 31 12:19:17.414 [notice] Tor v0.2.4.7-alpha (git-e46e1ed1bc50ad24)
 (with bufferevents) running on FreeBSD with Libevent 2.0.16-stable and
 OpenSSL 1.0.1c.
 Dec 31 12:19:17.415 [notice] Tor can't help you if you use it wrong! Learn
 how to be safe at https://www.torproject.org/download/download#warning
 Dec 31 12:19:17.415 [notice] This version is not a stable Tor release.
 Expect more bugs than usual.
 Dec 31 12:19:17.415 [notice] Read configuration file
 "/usr/local/etc/tor/torrc".
 [...]
 Dec 31 12:19:17.431 [notice] Opening Socks listener on 127.0.0.1:9050
 Dec 31 12:19:17.431 [notice] Opening DNS listener on 127.0.0.1:53
 Dec 31 12:19:17.431 [notice] Opening Transparent pf/netfilter listener on
 127.0.0.1:9040
 Dec 31 12:19:17.431 [notice] Opening Control listener on 127.0.0.1:9051
 Dec 31 12:19:17.431 [notice] Opening Control listener on /var/run/tor/tor-
 socket
 }}}

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/7836>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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