[Xymon] SSL Error [SEC=UNCLASSIFIED]

martin.wojak at ecodev.vic.gov.au martin.wojak at ecodev.vic.gov.au
Thu Nov 3 04:57:23 CET 2016


Hi Xymon community,

I'm getting a bunch of SSL Error alerts on some websites.

Here is one example:

https://kct-uat.agriculture.vic.gov.au/

If I add this to xymon, I get:

Thu Nov 3 03:50:38 2016: SSL error
red https://kct-uat.agriculture.vic.gov.au/ - SSL error

I did some digging through the xymon archives and openssl errors and found 
this:

http://lists.xymon.com/archive/2013-January/036688.html

and this:

http://stackoverflow.com/questions/24457408/openssl-command-to-check-if-a-server-is-presenting-a-certificate

so when I run this command from my Xymon server I get the 104 error:

# openssl s_client -connect kct-uat.agriculture.vic.gov.au:443
CONNECTED(00000003)
write:errno=104
---
no peer certificate available
---
No client certificate CA names sent
---
SSL handshake has read 0 bytes and written 247 bytes
---
New, (NONE), Cipher is (NONE)
Secure Renegotiation IS NOT supported
Compression: NONE
Expansion: NONE

But if I add the SNI, I get a nice connection:

# openssl s_client -connect kct-uat.agriculture.vic.gov.au:443 -servername 
kct-uat.agriculture.vic.gov.au
CONNECTED(00000003)
depth=2 C = US, O = DigiCert Inc, OU = www.digicert.com, CN = DigiCert 
High Assurance EV Root CA
verify return:1
depth=1 C = US, O = DigiCert Inc, OU = www.digicert.com, CN = DigiCert 
SHA2 High Assurance Server CA
verify return:1
depth=0 C = AU, ST = Victoria, L = Melbourne, O = "Department of Economic 
Development, Jobs Transport and Resources", CN = *.agriculture.vic.gov.au
verify return:1

New, TLSv1/SSLv3, Cipher is ECDHE-RSA-AES256-SHA384
Server public key is 2048 bit
Secure Renegotiation IS supported
Compression: NONE
Expansion: NONE
SSL-Session:
    Protocol  : TLSv1.2
    Cipher    : ECDHE-RSA-AES256-SHA384
    Session-ID: 
DC460000EC412D00D689C7E10DF575272E026FF475153A6367229629D79D15CF
    Session-ID-ctx:
    Master-Key: 
0EE96C944F5746D3524A17580FD7907716FBA724C1B8909CA96430C2F7262EC469CD9CBD1D25A6ADDB791A6E45AAAB76
    Key-Arg   : None
    Krb5 Principal: None
    PSK identity: None
    PSK identity hint: None
    Start Time: 1478145325
    Timeout   : 300 (sec)
    Verify return code: 0 (ok)

But now I'm not sure what to do next...  Any ideas?

Thanks,

Martin.

---

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