SSL-Tools

SSL check results of servac.avianet.cu

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Discover if the mail servers for servac.avianet.cu can be reached through a secure connection.

To establish a secure connection a mail server has to offer STARTTLS (SSL), a trustworthy SSL certificate, support for the Diffie-Hellman-Algorithm to guarantee Perfect Forward Secrecy and must not be vulnerable against the Heartbleed attack. Futhermore we recommend using end-to-end encryption with GnuPG.

Summary

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Report created Tue, 16 Nov 2021 14:28:41 +0000

The mailservers of servac.avianet.cu can be reached through an encrypted connection.

However, we found problems that may affect the security.

Servers

Incoming Mails

These servers are responsible for incoming mails to @servac.avianet.cu addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mx1.avianet.cu
200.55.163.162
 0
supported
mx1.avianet.cu
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
20 s
mx3.avianet.cu
200.55.163.169
 1
supported
mx3.avianet.cu
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
19 s
mx2.avianet.cu
200.55.164.146
 100
supported
mx2.avianet.cu
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
23 s
mx4.avianet.cu
200.55.164.155
 101
supported
mx4.avianet.cu
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
23 s

Outgoing Mails

We have received emails from these servers with @servac.avianet.cu sender addresses. Test mail delivery

Host TLS Version & Cipher
mx1.avianet.cu (200.55.163.162)
TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384

Certificates

First seen at:

CN=mx1.avianet.cu,OU=UEB-SI,O=SERVAC,L=PLAZA,ST=LA HABANA,C=CU

Certificate chain
  • mx1.avianet.cu (Certificate is self-signed.)
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
    • Unknown Authority
Subject
Country (C)
  • CU
State (ST)
  • LA HABANA
Locality (L)
  • PLAZA
Organization (O)
  • SERVAC
Organizational Unit (OU)
  • UEB-SI
Common Name (CN)
  • mx1.avianet.cu
Issuer

Certificate is self-signed.

validity period
Not valid before
2020-09-04
Not valid after
2022-09-04
Fingerprints
SHA256
45:93:AF:C6:D3:CD:A9:F7:86:EC:87:88:7E:94:E4:65:B3:65:53:9A:46:D1:7A:5C:6C:04:B2:BE:8B:3F:80:A0
SHA1
6C:C3:DC:70:46:9F:E1:99:BD:32:D2:9C:F1:FE:FD:A4:18:89:C1:B6
X509v3 extensions
subjectKeyIdentifier
  • 91:ED:92:8E:EE:1D:EC:D4:7A:9D:13:B8:2C:C7:5A:1B:0F:44:09:5A
authorityKeyIdentifier
  • keyid:91:ED:92:8E:EE:1D:EC:D4:7A:9D:13:B8:2C:C7:5A:1B:0F:44:09:5A
First seen at:

CN=mx2.avianet.cu,OU=UEB-SI,O=SERVAC,L=PLAZA,ST=LA HABANA,C=CU

Certificate chain
  • mx2.avianet.cu (Certificate is self-signed.)
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
    • Unknown Authority
Subject
Country (C)
  • CU
State (ST)
  • LA HABANA
Locality (L)
  • PLAZA
Organization (O)
  • SERVAC
Organizational Unit (OU)
  • UEB-SI
Common Name (CN)
  • mx2.avianet.cu
Issuer

Certificate is self-signed.

validity period
Not valid before
2020-09-04
Not valid after
2022-09-04
Fingerprints
SHA256
A5:32:E8:B3:F4:70:F3:94:1A:A3:90:10:B1:1C:E4:E4:DB:2D:75:9E:98:C5:8C:20:73:38:AB:08:44:DD:0F:7B
SHA1
92:31:5E:5C:3A:3C:DD:C1:51:8B:BE:D9:8F:54:46:89:85:28:7B:DD
X509v3 extensions
subjectKeyIdentifier
  • 0A:98:EC:50:BC:44:55:FF:0B:EF:33:E1:CC:05:39:52:01:7D:99:F1
authorityKeyIdentifier
  • keyid:0A:98:EC:50:BC:44:55:FF:0B:EF:33:E1:CC:05:39:52:01:7D:99:F1
First seen at:

CN=mx4.avianet.cu,OU=UEB-SI,O=SERVAC,L=PLAZA,ST=LA HABANA,C=CU

Certificate chain
  • mx4.avianet.cu (Certificate is self-signed.)
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
    • Unknown Authority
Subject
Country (C)
  • CU
State (ST)
  • LA HABANA
Locality (L)
  • PLAZA
Organization (O)
  • SERVAC
Organizational Unit (OU)
  • UEB-SI
Common Name (CN)
  • mx4.avianet.cu
Issuer

Certificate is self-signed.

validity period
Not valid before
2020-09-04
Not valid after
2022-09-04
Fingerprints
SHA256
ED:93:33:6E:1B:4D:17:0D:CF:7D:C6:F2:11:11:AF:48:E5:17:1C:8E:F2:6C:7D:2E:E3:A9:98:5E:77:3E:D9:6F
SHA1
BD:D0:D0:D7:EB:4D:3C:A8:1C:BD:1E:63:DD:B9:17:21:28:CB:B5:6E
X509v3 extensions
subjectKeyIdentifier
  • EB:F1:DE:63:F9:1F:5D:10:5F:8F:51:77:8D:D3:A1:DC:32:D0:41:5F
authorityKeyIdentifier
  • keyid:EB:F1:DE:63:F9:1F:5D:10:5F:8F:51:77:8D:D3:A1:DC:32:D0:41:5F
First seen at:

CN=mx3.avianet.cu,OU=UEB-SI,O=SERVAC,L=PLAZA,ST=LA HABANA,C=CU

Certificate chain
  • mx3.avianet.cu (Certificate is self-signed.)
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
    • Unknown Authority
Subject
Country (C)
  • CU
State (ST)
  • LA HABANA
Locality (L)
  • PLAZA
Organization (O)
  • SERVAC
Organizational Unit (OU)
  • UEB-SI
Common Name (CN)
  • mx3.avianet.cu
Issuer

Certificate is self-signed.

validity period
Not valid before
2020-09-03
Not valid after
2022-09-03
Fingerprints
SHA256
2B:DA:52:22:17:75:08:CD:66:A5:31:97:7E:20:ED:4D:FC:36:91:F1:02:5E:C7:88:28:69:78:64:81:6C:05:8A
SHA1
7F:92:3E:AB:BA:77:C9:B0:D0:E3:88:EF:43:E8:63:18:08:96:65:91
X509v3 extensions
subjectKeyIdentifier
  • B6:B3:D9:42:F4:B8:E7:B6:57:9B:85:AA:CE:CF:F5:7A:F3:72:87:82
authorityKeyIdentifier
  • keyid:B6:B3:D9:42:F4:B8:E7:B6:57:9B:85:AA:CE:CF:F5:7A:F3:72:87:82