OpenSSL Errors for some https tests
list Michael Gallen
Hi All I need help resolving OpenSSL errors for some internal and some public https sites. I am migrating from Hobbit 4.2.0 on CentOS 5.5 to Xymon 4.3.9 on CentOS 6.2 Everything works fine on CentOS 5.5 but on CentOS 6.2 we get SSL errors for some of our https sites. Some https sites test ok, others always fail. Hobbit uses openssl 0.9.8e-12.el5_5.7 Xymon uses openssl 1.0.0-25.el6_3.1 The error also displays when testing with wget and openssl -debug, please see below.. [xymon at xymon server]$ wget https://wiki.local.com --2012-09-17 16:19:45-- https://wiki.local.com/ Resolving wiki.avotuscorp.com... 10.12.0.61 Connecting to wiki.local.com|10.12.0.61|:443... connected. OpenSSL: error:140773F2:SSL routines:SSL23_GET_SERVER_HELLO:sslv3 alert unexpected message Unable to establish SSL connection. [xymon at xymon server]$ openssl s_client -connect wiki.local.com:443 -state -debug CONNECTED(00000003) SSL_connect:before/connect initialization write to 0x89dcab0 [0x8a13ac8] (113 bytes => 113 (0x71)) 0000 - 16 03 01 00 6c 01 00 00-68 03 01 50 57 86 8f 01 ....l...h..PW... 0010 - 39 d7 67 bc af ad dd 03-01 44 c8 f7 ca 43 0e 69 9.g......D...C.i 0020 - bf dc 31 da 0b 44 c8 2f-5a 5c 57 00 00 3a 00 39 ..1..D./Z\W..:.9 0030 - 00 38 00 88 00 87 00 35-00 84 00 16 00 13 00 0a .8.....5........ 0040 - 00 33 00 32 00 9a 00 99-00 45 00 44 00 2f 00 96 .3.2.....E.D./.. 0050 - 00 41 00 05 00 04 00 15-00 12 00 09 00 14 00 11 .A.............. 0060 - 00 08 00 06 00 03 00 ff-02 01 00 00 04 00 23 ..............# 0071 - <SPACES/NULS> SSL_connect:SSLv2/v3 write client hello A read from 0x89dcab0 [0x8a19028] (7 bytes => 7 (0x7)) 0000 - 15 03 01 00 02 02 0a ....... SSL3 alert read:fatal:unexpected_message SSL_connect:error in SSLv2/v3 read server hello A 3077838572:error:140773F2:SSL routines:SSL23_GET_SERVER_HELLO:sslv3 alert unexpected message:s23_clnt.c:674: --- no peer certificate available --- No client certificate CA names sent --- SSL handshake has read 7 bytes and written 113 bytes --- New, (NONE), Cipher is (NONE) Secure Renegotiation IS NOT supported Compression: NONE Expansion: NONE --- Thanks for any help Michael Disclaimer: This email message and any attachments are for the sole use of the intended recipient(s) and may contain information that is confidential, legally privileged or otherwise exempt from disclosure under applicable law. If you are not the intended recipient(s) or have received this message in error, you are instructed to immediately notify the sender by return email and required to delete this message from your computer system. This communication does not form any contractual obligation on behalf of the sender, the sender's employer or such employer's parent company, affiliates or subsidiaries.
list Henrik Størner
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On 17-09-2012 22:40, Michael Gallen wrote:
I am migrating from Hobbit 4.2.0 on CentOS 5.5 to Xymon 4.3.9 on CentOS 6.2 Everything works fine on CentOS 5.5 but on CentOS 6.2 we get SSL errors for some of our https sites. Some https sites test ok, others always fail. Hobbit uses openssl 0.9.8e-12.el5_5.7 Xymon uses openssl 1.0.0-25.el6_3.1 The error also displays when testing with wget and openssl –debug, please see below..
OK, so you've narrowed it down to the change of openssl version, not the Hobbit/Xymon upgrade.
OpenSSL: error:140773F2:SSL routines:SSL23_GET_SERVER_HELLO:sslv3 alert unexpected message Unable to establish SSL connection.
I don't know if CentOS did, but the Ubuntu version of OpenSSL - perhaps also Debian - disabled support for SSLv2 somewhere between 0.9.8 and 1.0. Could this be the reason - that your failing site only supports the older SSLv2 protocol ? You can also try forcing it to connect using only TLS or only SSLv3 (there are some openssl options for that). Perhaps one of those work? Regards, Henrik
list Ralph Mitchell
Just a thought: Do you have all your CA certs in the right place?? Ralph Mitchell On Mon, Sep 17, 2012 at 4:40 PM, Michael Gallen
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<user-6c5d8fa37900@xymon.invalid>wrote:
Hi All I need help resolving OpenSSL errors for some internal and some public https sites. I am migrating from Hobbit 4.2.0 on CentOS 5.5 to Xymon 4.3.9 on CentOS 6.2 Everything works fine on CentOS 5.5 but on CentOS 6.2 we get SSL errors for some of our https sites. Some https sites test ok, others always fail. Hobbit uses openssl 0.9.8e-12.el5_5.7 Xymon uses openssl 1.0.0-25.el6_3.1 The error also displays when testing with wget and openssl –debug, please see below.. [xymon at xymon server]$ wget https://wiki.local.com --2012-09-17 16:19:45-- https://wiki.local.com/ Resolving wiki.avotuscorp.com... 10.12.0.61 Connecting to wiki.local.com|10.12.0.61|:443... connected. OpenSSL: error:140773F2:SSL routines:SSL23_GET_SERVER_HELLO:sslv3 alert unexpected message Unable to establish SSL connection. [xymon at xymon server]$ openssl s_client -connect wiki.local.com:443 -state -debug CONNECTED(00000003) SSL_connect:before/connect initialization write to 0x89dcab0 [0x8a13ac8] (113 bytes => 113 (0x71)) 0000 - 16 03 01 00 6c 01 00 00-68 03 01 50 57 86 8f 01 ....l...h..PW... 0010 - 39 d7 67 bc af ad dd 03-01 44 c8 f7 ca 43 0e 69 9.g......D...C.i 0020 - bf dc 31 da 0b 44 c8 2f-5a 5c 57 00 00 3a 00 39 ..1..D./Z\W..:.9 0030 - 00 38 00 88 00 87 00 35-00 84 00 16 00 13 00 0a .8.....5........ 0040 - 00 33 00 32 00 9a 00 99-00 45 00 44 00 2f 00 96 .3.2.....E.D./.. 0050 - 00 41 00 05 00 04 00 15-00 12 00 09 00 14 00 11 .A.............. 0060 - 00 08 00 06 00 03 00 ff-02 01 00 00 04 00 23 ..............# 0071 - <SPACES/NULS> SSL_connect:SSLv2/v3 write client hello A read from 0x89dcab0 [0x8a19028] (7 bytes => 7 (0x7)) 0000 - 15 03 01 00 02 02 0a ....... SSL3 alert read:fatal:unexpected_message SSL_connect:error in SSLv2/v3 read server hello A 3077838572:error:140773F2:SSL routines:SSL23_GET_SERVER_HELLO:sslv3 alert unexpected message:s23_clnt.c:674: --- no peer certificate available --- No client certificate CA names sent --- SSL handshake has read 7 bytes and written 113 bytes --- New, (NONE), Cipher is (NONE) Secure Renegotiation IS NOT supported Compression: NONE Expansion: NONE --- Thanks for any help *Michael* Disclaimer: This email message and any attachments are for the sole use of the intended recipient(s) and may contain information that is confidential, legally privileged or otherwise exempt from disclosure under applicable law. If you are not the intended recipient(s) or have received this message in error, you are instructed to immediately notify the sender by return email and required to delete this message from your computer system. This communication does not form any contractual obligation on behalf of the sender, the sender's employer or such employer's parent company, affiliates or subsidiaries.
list Michael Gallen
Problem solved, Thanks Henrik for pointing me in the right direction I used a Xymon option to force https tests to use SSLv3 When using auto or SSLv2 the SSL connections would fail to some systems. In hosts.cfg the URL would be https3://wiki.local.com Regards, Michael
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-----Original Message-----
From: xymon-bounces at xymon.com [mailto:xymon-bounces at xymon.com] On Behalf Of Henrik Størner
Sent: September 17, 2012 5:20 PM
To: xymon at xymon.com
Subject: Re: [Xymon] OpenSSL Errors for some https tests
On 17-09-2012 22:40, Michael Gallen wrote:I am migrating from Hobbit 4.2.0 on CentOS 5.5 to Xymon 4.3.9 on CentOS 6.2 Everything works fine on CentOS 5.5 but on CentOS 6.2 we get SSL errors for some of our https sites. Some https sites test ok, others always fail. Hobbit uses openssl 0.9.8e-12.el5_5.7 Xymon uses openssl 1.0.0-25.el6_3.1 The error also displays when testing with wget and openssl -debug, please see below..
OK, so you've narrowed it down to the change of openssl version, not the Hobbit/Xymon upgrade.
OpenSSL: error:140773F2:SSL routines:SSL23_GET_SERVER_HELLO:sslv3 alert unexpected message Unable to establish SSL connection.
I don't know if CentOS did, but the Ubuntu version of OpenSSL - perhaps also Debian - disabled support for SSLv2 somewhere between 0.9.8 and 1.0. Could this be the reason - that your failing site only supports the older SSLv2 protocol ? You can also try forcing it to connect using only TLS or only SSLv3 (there are some openssl options for that). Perhaps one of those work? Regards, Henrik Disclaimer: This email message and any attachments are for the sole use of the intended recipient(s) and may contain information that is confidential, legally privileged or otherwise exempt from disclosure under applicable law. If you are not the intended recipient(s) or have received this message in error, you are instructed to immediately notify the sender by return email and required to delete this message from your computer system. This communication does not form any contractual obligation on behalf of the sender, the sender's employer or such employer's parent company, affiliates or subsidiaries.