[OpenSIPS-Users] proxy_authorize("","subscriber") bug ??
Pasan Meemaduma
pasandev at ymail.com
Tue Jul 13 06:30:36 CEST 2010
Hi All,
Looks like modparam("auth", "disable_nonce_check", 1) has fixed my problem
Just want to know if I disable nonce check will it affect www_authorize("",
"subscriber")
I have put following in my config
How can I stop nonce check for REGISTER requests ?
route[2]
{
# authorize registration
if(!www_authorize("", "subscriber")) {
# xlog("L_INFO", "Register authentication failed - M=$rm RURI=$ru
F=$fu T=$tu IP=$si ID=$ci\n");
$var(reason) = $retcode;
if($var(reason) == -3){
xlog("L_INFO", "Register authentication failed (stale
nonce)- M=$rm RURI=$ru F=$fu T=$tu IP=$si ID=$ci\n");
# I can see this in syslog ???? Is
modparam("auth", "disable_nonce_check", 1) doesn't affect www_authorize("",
"subscriber") ??
}
www_challenge("", "0");
exit;
}
# prevent spoofed registration attempts
if(!check_to()){ # Changed on 2010-06-15
# #xlog("L_INFO", "Spoofed To-URI detected - M=$rm RURI=$ru F=$fu
T=$tu IP=$si ID=$ci\n");
sl_send_reply("403", "Spoofed To-URI detected");
exit;
}
# remove credentials
consume_credentials();
# perform NAT traversal for subsequent requests
if(!search("^Contact:[ ]*\*") && nat_uac_test("19")) {
fix_nated_register();
setbflag(2); # flag for NAT
setbflag(8); # flag for NAT PING using SIP OPTION request
Fixed on 31/05/2010
}
# save contact
if(!save("location")) {
# xlog("L_ERR", "Saving contact failed - M=$rm RURI=$ru F=$fu
T=$tu IP=$si ID=$ci\n");
sl_reply_error();
exit;
}
#xlog("L_INFO", "Registration successful - M=$rm RURI=$ru F=$fu T=$tu
IP=$si ID=$ci\n");
exit;
}
thanks
________________________________
From: Pasan Meemaduma <pasandev at ymail.com>
To: OpenSIPS users mailling list <users at lists.opensips.org>
Sent: Monday, July 12, 2010 16:46:26
Subject: Re: [OpenSIPS-Users] proxy_authorize("","subscriber") bug ??
Hi Bogdan,
Thanks for the quick reply,
What I now suspect is the security mechanism for stale nonces introduced in
later 1.4 causing this. The identical configuration works fine with opensips 1.4
This problem started to appear after I upgrade server from openser to opensips
about a month ago.
Loosing registration is the most worst problem since its affecting incoming
calls.
For the moment what I did was add the following in my opensips.cfg after going
through the mailing list archives.
modparam("auth", "disable_nonce_check", 1)
As I understood opensips reject nonce which is used before even if it send with
correct credentials. This could be the problem that Re-INVITEs get 407 .
I can't do much changes to observe more debuging information like setting set
debug =6 as this is a production server.
I'm going to apply the new setting modparam("auth", "disable_nonce_check", 1)
tomorrow on our offpeak time and see whether it will resolve the problem.
I'll get back to here tomorrow with the results.
________________________________
From: Bogdan-Andrei Iancu <bogdan at voice-system.ro>
To: OpenSIPS users mailling list <users at lists.opensips.org>
Sent: Monday, July 12, 2010 15:46:18
Subject: Re: [OpenSIPS-Users] proxy_authorize("","subscriber") bug ??
Hi Pasan,
first, for non-REGISTER requests use only the proxy_XXXX() functions.
For debugging the failure, try:
1) print the return code of the proxy_authorize() (use $retcode) - see
http://www.opensips.org/html/docs/modules/1.6.x/auth_db.html#id228340
2) set debug =6 and post the log corresponding to the INVITE processing .
Regards,
Bogdan
Pasan Meemaduma wrote:
> Hi All,
>
> I'm having trouble with my authentication routine with opensips 1.5
>
> I'm currently using opensips 1.5.3-1
>
> And there are lot of voip equipments using this production server.
>
> problem is that sometimes for some sip clients
> proxy_authorize("","subscriber") returns false even with correct
> credentials.
>
> basically most of the times this happens to Re-INVITEs in a dialogue
> (messages with Proxy-Authorization Header).
>
> This is causing in progress calls being failed. sip client gives up
> when it changes again.
>
> And another problem is with www_authorize("", "subscriber")
>
> It has the same problem returns false even with correct credentials.
> and this happens randomly so , its hard to figure out why .
>
> does any one else having problem with simillar issues with using these
> routines ?
>
> Is it a bug in these routines ?
>
> Is there a new release for 1.5 branch which has fixed this sort of a
> problem.
>
> any help on this would be very appreciated.
>
> currently server has more than 8000 entries in location table at any
> given time and handles more than 3000 calls per day.
>
> following is one such sip trace that i got from a call
>
>
> Even the re- INVITE has correct Proxy-Authorization header present
> opensips change it again.
>
> U 2010/06/24 16:03:40.466974 y.y.y.y:5060 -> x.x.x.x:5060
> INVITE sip:1234567890 at x.x.x.x SIP/2.0.
> To: <sip:1234567890 at x.x.x.x>.
> From: "abcdefgh" <sip:abcdefgh at x.x.x.x>;tag=252070.
> Call-ID: 444603gj at 192.168.1.20.
> CSeq: 5 INVITE.
> Via: SIP/2.0/UDP 192.168.1.20:5060;branch=z9hG4bK155910d13;rport.
> Allow: ACK,BYE,CANCEL,INVITE,INFO,NOTIFY,OPTIONS,PRACK,REFER,UPDATE.
> Contact: <sip:abcdefgh at 192.168.1.20:5060>.
> Supported: replaces,precondition.
> Accept: application/sdp,application/cpim-pidf+xml.
> Expires: 240.
> User-Agent: BiPAC 7404VGPX 5.53.s6.b1.
> Accept-Language: en.
> Content-Type: application/sdp.
> Content-Length: 306.
> Content-Language: en.
> Content-Disposition: session.
> Max-Forwards: 70.
> Proxy-Authorization: Digest
>username="abcdefgh",realm="x.x.x.x",nonce="4c22f542000042ba42dd84f4cd197a73f815b9c34124752c",uri="sip:1234567890 at x.x.x.x",response="32f7b1dfebfa87b20d1efe0e47019b81".
>.
> .
> v=0.
> o=abcdefgh 862 862 IN IP4 192.168.1.20.
> s=-.
> c=IN IP4 192.168.1.20.
> t=0 0.
> m=audio 5100 RTP/AVP 18 0 8 101.
> a=rtpmap:18 G729/8000.
> a=rtpmap:0 PCMU/8000.
> a=rtpmap:8 PCMA/8000.
> a=rtpmap:101 telephone-event/8000.
> a=fmtp:101 0-15,66,70.
> a=curr:qos e2e send.
> a=des:qos optional e2e sendrecv.
> a=sendrecv.
>
>
> U 2010/06/24 16:03:40.468557 x.x.x.x:5060 -> y.y.y.y:5060
> SIP/2.0 407 Proxy Authentication Required.
> To: <sip:1234567890 at x.x.x.x>;tag=a1270bde159848b15079f3c250cc0b75.56af.
> From: "abcdefgh" <sip:abcdefgh at x.x.x.x>;tag=252070.
> Call-ID: 444603gj at 192.168.1.20.
> CSeq: 5 INVITE.
> Via: SIP/2.0/UDP
> 192.168.1.20:5060;branch=z9hG4bK155910d13;rport=5060;received=y.y.y.y.
> Proxy-Authenticate: Digest realm="x.x.x.x",
> nonce="4c22f55a00004fac9c389333991faa357d4dda38f4b9159f".
> Server: Voip.
> Content-Length: 0.
>
>
>
>
> ------------------------------------------------------------------------
>
> _______________________________________________
> Users mailing list
> Users at lists.opensips.org
> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>
--
Bogdan-Andrei Iancu
OpenSIPS Bootcamp
20 - 24 September 2010, Frankfurt, Germany
www.voice-system.ro
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