- stunnel-users - stunnel.org

port-only accept value binds to 127.0.0.1, instead of the wildcard address
by Poor Yorick 30 May '18

30 May '18

The stunnel 6.45 documentation for "accept" states, "If no host specified, defaults to all IPv4 addresses for the local host." In this case, stunnel actually binds to 127.0.0.1. Indeed, inspection of the relevant code paths reveals that addr_list->passive is never set to 1 in this case. To get stunnel to bind to all addresses, 0.0.0.0 must be explicitly specified. Furthermore, inspection of the code path for the "local" option reveals that addr_list->passive is set to 1 in this case, which seems to be backwards: The documentation for getaddrinfo states that AI_PASSIVE is ignored in this case. The logic for these two cases seems to be reversed. -- Yorick

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stunnel 5.46 released
by Michal Trojnara 29 May '18

29 May '18

Dear Users, I have released version 5.46 of stunnel. Version 5.46, 2018.05.28, urgency: MEDIUM * New features - The default cipher list was updated to a safer value: "HIGH:!aNULL:!SSLv2:!DH:!kDHEPSK". * Bugfixes - Default accept address restored to INADDR_ANY. Home page: https://www.stunnel.org/ Download: https://www.stunnel.org/downloads.html SHA-256 hashes: 76aab48c28743d78e4b2f6b2dfe49994b6ca74126046c179444f699fae7a84c7 stunnel-5.46.tar.gz 721cc4d7c385743df767a32a53c11477def2440ae20ad4538d8e685f7b7d6538 stunnel-5.46-win32-installer.exe d08a3b3598868064db08d6f0e3a97e3c49dedbf6c8d7f348a613b832eca16dd6 stunnel-5.46-android.zip Best regards, Mike

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Stunnel stopps in Windows Failover Cluster
by Tobias Gillstöm 28 May '18

28 May '18

Hi, I'm having problems with Stunnel in a Windows Failover Cluster. When a failover happens and the stunnel service changes node that it's running on, the service changes node just fine but the stunnel service dosen't appear to be doing anything? If anyone has some prior knowledge about Stunnel in a Windows Failover Cluster i would appreciate the help :)

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stunnel and CAPI on Windows
by Brian Ipsen 23 May '18

23 May '18

Hi I am trying to use the Microsoft certificate store/API for client validation of Windows hosts towards an F5. Everything works, when we use file-based certificates - but for security purposes I would prefer to use the windows certificate store, and set the private key on the client as non-exportable... I have enabled the engineId = capi in the global section of stunnel.conf - and for the required client/service I have: [F5CertAdmin] client=yes accept = 127.0.0.1:1679 connect = w.x.y.z:443 delay = yes sni = ssl79admpki.xxxx.com CApath = C:\Program Files (x86)\stunnel\config\certs CAFile = C:\Program Files (x86)\stunnel\config\certs\GlobalSign-Cert-Chain.pem verify = 2 engineId = capi key = BaaSClientCertificateCP cert = BaaSClientCertificateCP I have a certificate in the local computer certificate store with the supplied name - but stunnel is not able to locate it... Is it because it will look under the user account? If yes, will it look under the local machine when running as local system ? The output from stunnel says: [ ] Initializing service [F5CertAdmin] [ ] Ciphers: HIGH:!DH:!aNULL:!SSLv2 [ ] TLS options: 0x03000004 (+0x03000000, -0x00000000) [ ] Client certificate engine (capi) enabled [ ] Loading certificate from engine ID: BaaSClientCertificateCP [!] ENGINE_ctrl_cmd: Peer suddenly disconnected [ ] Initializing private key on engine ID: BaaSClientCertificateCP [!] ENGINE_load_private_key: 26096080: error:26096080:engine routines:ENGINE_load_private_key:failed loading private key [ ] Loading certificate from file: BaaSClientCertificateCP [!] error queue: 140DC002: error:140DC002:SSL routines:SSL_CTX_use_certificate_chain_file:system lib [!] error queue: 20074002: error:20074002:BIO routines:FILE_CTRL:system lib [!] SSL_CTX_use_certificate_chain_file: 2001002: error:02001002:system library:fopen:No such file or directory [!] Service [F5CertAdmin]: Failed to initialize TLS context @am6pr03mb3813.eurprd03.prod.outlook.com>Any advice appreciated... Thanks Brian

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stunnel 5.45 released
by Michal Trojnara 22 May '18

22 May '18

Dear Users, I have released version 5.45 of stunnel. Version 5.45, 2018.05.21, urgency: MEDIUM * New feature sponsored by https://loadbalancer.org/ - Implemented delayed deallocation of service sections after configuration file reload. * Other new features - OpenSSL DLLs updated to version 1.0.2o. - Deprecated the sslVersion option. - The "socket" option is now also available in service sections. - Implemented try-restart in the SysV init script (thx to Peter Pentchev). - TLS 1.3 compliant session handling for OpenSSL 1.1.1. - Default "failover" value changed from "rr" to "prio". - New "make check" tests. * Bugfixes - A service no longer refuses to start if binding fails for some (but not all) addresses:ports. - Fixed compression handling with OpenSSL 1.1.0 and later. - _beginthread() replaced with safer _beginthreadex(). - Fixed exception handling in libwrap. - Fixed exec+connect services. - Fixed automatic resolver delaying. - Fixed a Gentoo cross-compilation bug (thx to Joe Harvell). - A number of "make check" framework fixes. - Fixed false postive memory leak logs. - Build fixes for OpenSSL versions down to 0.9.7. - Fixed (again) round-robin failover in the FORK threading model. Home page: https://www.stunnel.org/ Download: https://www.stunnel.org/downloads.html SHA-256 hashes: 548244839b8a4bf4dffea46c97893b203d1b9eed118c3dd6a9ac4d8d02592ee3 stunnel-5.45.tar.gz fc13a224c7ec1290035efe8317c53d62a0980a5ab2efe8930b06aae269fbe873 stunnel-5.45-win32-installer.exe 29025eaed007c62856f16c7a8a22f9713eee9762ed95009f6f91f729c35c0bc0 stunnel-5.45-android.zip Best regards, Mike

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configuring Stunnel
by support 20 May '18

20 May '18

The config as described hereby did work properly a few times giving a secured connection. All of a sudden this is no longer working? Any suggestions? Namens IMS evba Paul Waegemans +32475341310 <mailto:support@imseuro.be> support(a)imseuro.be <http://eu.ntrsupport.com/inquiero/web/digisign/digisign.asp?login=I23EBF509 C6B51A9E700D43&lang=nl>

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UTF8 BOM in PSKsecrets file
by Jakob Hirsch 17 May '18

17 May '18

Hi! I just found out (after a while of troubleshooting) that stunnel does not handle UTF-8 BOM in the PSKsecrets file, i.e. the BOM is considered part of the identity (tested with 5.44, 5.45b4 and 5.45b6 on Windows 10 1709). It was a little tricky to figure this out, as the BOM is apparently filtered out in the logs, e.g. the server just says 'No key found for PSK identity "client1"'. Ok, nobody says that this is supported or that you should do it, it just happens automatically when you click "Edit Configuration" in the Windows GUI and click "Save as" (out of convenience, because you will already be in the config directory then), because the sample config has a BOM and Notepad will also insert a BOM in the new file. I don't know how much work it would be to handle the BOM correctly or at least print a warning (didn't look at the code, sorry), a warning in the manual would probably sufficient, as it could be that I'm the first one to stumble over this (at least I didn't find anything about it on the net). Regards (and thanks for this nice piece of software) Jakob

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Windows Server 2012 R2
by Daniel McArdell 17 May '18

17 May '18

Hello, I have joined the mail group in the hope that someone can help with problems I am having running on our Server machine. I downloaded "stunnel-5.45b6-win64-installer" and installed it on our Server. When I run the executable I get: 2018.05.17 12:48:33 LOG5[main]: stunnel 5.45 on x64-pc-msvc-1913 platform 2018.05.17 12:48:33 LOG5[main]: Compiled/running with OpenSSL 1.1.0g 2 Nov 2017 2018.05.17 12:48:33 LOG5[main]: Threading:WIN32 Sockets:SELECT,IPv6 TLS:ENGINE,OCSP,PSK,SNI 2018.05.17 12:48:33 LOG5[main]: Reading configuration from file stunnel.conf 2018.05.17 12:48:33 LOG5[main]: UTF-8 byte order mark detected 2018.05.17 12:48:33 LOG5[main]: Configuration successful The shortcut [cid:image001.png@01D3EDDE.6F3D0930] I was expecting to get a GUI interface but that does not happen. Can someone tell me what is going wrong. I feel as though I have missed something obvious. Daniel McArdell | Senior Analyst Programmer | Products & Technology | BNZ<http://www.bnz.co.nz/> L6 Custom House, 17 Whitmore St, Wellington 6011 DDI +64 4 4746679 (extn 76679) | F +64 4 4746023 | M +64 29 2220451 | E Daniel_McArdell(a)bnz.co.nz<mailto:Daniel_McArdell@bnz.co.nz?Subject=> CAUTION - This message may contain privileged and confidential information intended only for the use of the addressee named above. If you are not the intended recipient of this message you are hereby notified that any use, dissemination, distribution or reproduction of this message is prohibited. This email was sent by the Bank of New Zealand. You can contact us on 0800 ASK BNZ (0800 275 269). Any views expressed in this message are those of the individual sender and may not necessarily reflect the views of Bank of New Zealand.

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stunnel with client-auth via proxy-server
by jack.reacher＠gmx.de 16 May '18

16 May '18

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Stunnel running as service on Windows Server 2008 R2 but Stunnel All Users shortcut on the desktop reports that it server is down?
by Alex Birchall 16 May '18

16 May '18

Hello, I have Stunnel running as a service on a Windows Server 2008 R2. But the shortcut on the desktop "Stunnel All Users", when launched, informs me that the server is down due to an "invalid configuration file". In the config file, if Stunnel is being run as a service, should it be "client = no" or "server = yes"? Many thanks. Best regards, Alex

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