[OpenSIPS-Users] phone not getting regsitered using TLS

Fri Jul 15 15:17:45 UTC 2022

Hi,

looking at some search result shows, that TLS_RSA_WITH_RC4_128_SHA is
insecure and should not be used. Maybe the setting of CipherString in
openssl.cnf is causing the issue. On current Debian it is set like
this DEFAULT at SECLEVEL=2.

Karsten

Am Samstag, dem 16.07.2022 um 03:02 +1200 schrieb ideanet help:
> Hi Karsten,
> I thought the same initially but then looks like logs are saying:
> Client used ciphers are:
>         TLS_RSA_WITH_RC4_128_MD5
>         TLS_RSA_WITH_RC4_128_SHA
> and servers response is cipherSuite         TLS_RSA_WITH_RC4_128_SHA
>
> isn't it?
>
>
>
> On Sat, Jul 16, 2022 at 1:53 AM Karsten Wemheuer <kwem at gmx.de> wrote:
> > Hi,
> >
> > the snom M9 is pretty old (End of Life 12/2016). Maybe the used
> > ciphers
> > are not secure enough for current TLS.
> >
> > HTH
> >
> > Have a nice day and weekend
> >
> > Karsten
> >
> > Am Samstag, dem 16.07.2022 um 01:20 +1200 schrieb ideanet help:
> > > Hi experts,
> > >
> > > One of my phones (SNOM M9) is not able to register using TLS.
> > >
> > > Here are the logs from opensips and ssldump. Maybe someone can
> > > pinpoint the issue?
> > >
> > >
> > > Jul 15 13:02:12 opensips: Jul 15 13:02:12 [10604]
> > > DBG:core:handle_new_connect: new connection: 0x7f16d2ba3bd8 80
> > flags:
> > > 001c
> > > Jul 15 13:02:12 opensips: Jul 15 13:02:12 [10604]
> > > DBG:core:send2worker: to tcp worker 0 (0), 0x7f16d2ba3bd8 rw 1
> > > Jul 15 13:02:12 opensips: Jul 15 13:02:12 [10598]
> > > DBG:proto_tls:proto_tls_conn_init: looking up TLS server domain
> > > [xx.xx.xx.xx:5061]
> > > Jul 15 13:02:12 opensips: Jul 15 13:02:12 [10598]
> > > DBG:tls_mgm:tls_find_server_domain: found TLS server domain:
> > > sip.tls.mysipdomain.com
> > > Jul 15 13:02:12 opensips: Jul 15 13:02:12 [10598]
> > > DBG:tls_openssl:openssl_tls_conn_init: Creating a whole new ssl
> > > connection
> > > Jul 15 13:02:12 opensips: Jul 15 13:02:12 [10598]
> > > DBG:tls_openssl:openssl_tls_conn_init: Setting in ACCEPT mode
> > > (server)
> > > Jul 15 13:02:12 opensips: Jul 15 13:02:12 [10598]
> > DBG:core:handle_io:
> > > We have received conn 0x7f16d2ba3bd8 with rw 1 on fd 4
> > > Jul 15 13:02:12 opensips: Jul 15 13:02:12 [10598]
> > > DBG:core:io_watch_add: [TCP_worker] io_watch_add op (4 on 74)
> > > (0x8f91e0, 4, 19, 0x7f16d2ba3bd8,1), fd_no=4/83886
> > > Jul 15 13:02:12 opensips: Jul 15 13:02:12 [10598]
> > > DBG:proto_tls:tls_read_req: Using the global ( per process ) buff
> > > Jul 15 13:02:12 opensips: Jul 15 13:02:12 [10598]
> > > DBG:tls_openssl:openssl_tls_update_fd: New fd is 4
> > > Jul 15 13:02:12 opensips: Jul 15 13:02:12 [10598]
> > > DBG:proto_tls:tls_read_req: SSL accept/connect still pending!
> > > Jul 15 13:02:12 opensips: Jul 15 13:02:12 [10598]
> > > DBG:proto_tls:tls_read_req: Using the global ( per process ) buff
> > > Jul 15 13:02:12 opensips: Jul 15 13:02:12 [10598]
> > > DBG:tls_openssl:openssl_tls_update_fd: New fd is 4
> > > Jul 15 13:02:12 opensips: Jul 15 13:02:12 [10598]
> > > ERROR:tls_openssl:openssl_tls_accept: SSL_ERROR_SYSCALL
> > > err=Success(0)
> > > Jul 15 13:02:12 opensips: Jul 15 13:02:12 [10598]
> > > ERROR:tls_openssl:openssl_tls_accept: New TLS connection from
> > > myphoneIP.xx.xx:2987 failed to accept
> > > Jul 15 13:02:12 opensips: Jul 15 13:02:12 [10598]
> > > ERROR:proto_tls:tls_read_req: failed to do pre-tls handshake!
> > >
> > > _________________________
> > >
> > > ssldump logs:
> > >
> > >
> > > New TCP connection #3: myphoneIP.xx.xx(2082) <->
> > > sip.tls.mysipdomain.com(5061)
> > > 3 1  0.0280 (0.0280)  C>S  Handshake
> > >       ClientHello
> > >         Version 3.1
> > >         cipher suites
> > >         TLS_RSA_WITH_RC4_128_MD5
> > >         TLS_RSA_WITH_RC4_128_SHA
> > >         compression methods
> > >                   NULL
> > >         extensions
> > >           server_name
> > >               host_name: sip.tls.mysipdomain.com
> > >         ja3 string: 769,4-5,0,,
> > >         ja3 fingerprint: 8305e724a7c9f16b323465d289bc54a1
> > > 3 2  0.0353 (0.0072)  S>C  Handshake
> > >       ServerHello
> > >         Version 3.1
> > >         session_id[0]=
> > >
> > >         cipherSuite         TLS_RSA_WITH_RC4_128_SHA
> > >         compressionMethod                   NULL
> > >         extensions
> > >           server_name
> > >         ja3s string: 769,5,0
> > >         ja3s fingerprint: 99f916287a3ac1de732520956ab94b77
> > > 3 3  0.0353 (0.0000)  S>C  Handshake
> > >       Certificate
> > > 3 4  0.0353 (0.0000)  S>C  Handshake
> > >       ServerHelloDone
> > > 3    0.0653 (0.0299)  C>S  TCP FIN
> > > 3    0.0656 (0.0003)  S>C  TCP FIN
> > > _______________________________________________
> > > Users mailing list
> > > Users at lists.opensips.org
> > > http://lists.opensips.org/cgi-bin/mailman/listinfo/users
> >
> >
> > _______________________________________________
> > Users mailing list
> > Users at lists.opensips.org
> > http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>
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