[stunnel-users] Réf. : Re: need help error :SSL3_GET_RECORD:wrong versionnumber with cipher DES-CBC-SHA

Jose Alf. josealf at rocketmail.com
Tue May 3 19:18:00 CEST 2011


I'm not sure you are connecting the dots right. 

I see an stunnel server configuration. In this case, your stunnel is a front-end 
to a service you run on host XXXX port 10016. What is that service? Is stunnel 
running on the same host? Note that If stunnel is not running on the same host 
with IP XXXX, then you may have some traffic in clear text in your network (from 
the device running stunnel to the device hosting the service on port 10016).

You need a client to connect to the stunnel server. Unless your client support 
SSL natively, you also should have an stunnel running on your client device with 
entries like these:

accept = 10443 
connect = Your-Stunnel-server-IP:10443

In this case your client apps connects locally to port 10443, traffic is 
encrypted and sent to your server listening on port 10443, where it is decripted 
and send to IP XXXX port 10016.



From: "laurent.uk at bnpparibas.com" <laurent.uk at bnpparibas.com>
To: josealf at rocketmail.com
Cc: stunnel-users at stunnel.org; stunnel-users-bounces at stunnel.org
Sent: Tue, May 3, 2011 10:48:11 AM
Subject: Réf. : Re: [stunnel-users] need help error :SSL3_GET_RECORD:wrong 
versionnumber with cipher DES-CBC-SHA

Dear Jose, 

here is the configuration file of my stunnel : 

; Sample stunnel configuration file by Michal Trojnara 2002-2006 
; Some options used here may not be adequate for your particular configuration 
; Please make sure you understand them (especially the effect of chroot jail) 

; Certificate/key is needed in server mode and optional in client mode 
cert = /opt/freeware/etc/stunnel/ca_nopass.pem 
foreground = yes 
syslog = yes 
; Protocol version (all, SSLv2, SSLv3, TLSv1) 
;sslVersion = SSLv2 
sslVersion = all 
;ciphers = DES-CBC-SHA 
;ciphers = DES-CBC3-SHA:IDEA-CBC-MD5 
; Some security enhancements for UNIX systems - comment them out on Win32 
;chroot = /usr/local/stunnel/var/lib/stunnel 
;chroot = /tmp/ 
;setuid = root 
;setgid = other 
; PID is created inside chroot jail 
pid = /var/adm/stunnel_server_level1.pid 

; Some performance tunings 
socket = l:TCP_NODELAY=1 
socket = r:TCP_NODELAY=1 
;compression = rle 

; Workaround for Eudora bug 
;options = Options_SSL 
; Authentication stuff 
verify = 3 
; Don't forget to c_rehash CApath 
; CApath is located inside chroot jail 
CApath = /opt/freeware/etc/stunnel/CA_files/ 
; It's often easier to use CAfile 
;CAfile = /opt/freeware/etc/stunnel/ca.pem 
; Don't forget to c_rehash CRLpath 
; CRLpath is located inside chroot jail 
;CRLpath = /crls 
; Alternatively you can use CRLfile 
;CRLfile = /usr/local/stunnel/etc/stunnel/crls.pem 

; Some debugging stuff useful for troubleshooting 
debug = 7 

; Use it for client mode 
client = no 
; Service-level configuration 

accept = 10443 
connect = XXXXXXX:10016 

Thanks for your help. 


Laurent UK

josealf at rocketmail.com 
03/05/2011 14:52 
Veuillez répondre à
josealf at rocketmail.com 
 Pour Laurent UK, stunnel-users-bounces at stunnel.org, stunnel-users at stunnel.org  
Objet Re: [stunnel-users] need help error :SSL3_GET_RECORD:wrong versionnumber 
with cipher DES-CBC-SHA 



Can you post your configuration? For security, You should change the real IPs 
(but not the ports) before posting.

You can check:

1. Does your stunnel client config has client=yes?
2. Does your stunnel server config has client=no
3. Check your packet flow, that is: your accept/connect settings.

-----Original Message-----
From: laurent.uk at bnpparibas.com
Sender: stunnel-users-bounces at stunnel.org
Date: Tue, 3 May 2011 14:16:09 
To: <stunnel-users at stunnel.org>
Subject: [stunnel-users] need help error :SSL3_GET_RECORD:wrong version
                number with cipher DES-CBC-SHA

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