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Mitigating the Beast, Heartbleed, DROWN and POODLE attack attack on SSL TLS grade A+

21/08/2013
Mitigating the Beast, Heartbleed, DROWN and POODLE attack attack on SSL TLS grade A+

Strengthening SSL and TLS Connections: A Step-by-Step Guide

SSL (Secure Sockets Layer) is the technology used to encrypt and decrypt messages sent between the browser and server. By encrypting the data, you protect messages from being read while they are transferred across the Internet. SSL encrypts a message from the web browser or application and sends it to the server. When the server receives the message, SSL decrypts it and verifies that it came from the correct sender (a process known as authentication).

It took me a while to understand how to strengthen SSL and TLS connections between the server and clients. Many of us, when performing an SSL test on SSL Labs, receive grades of B, C, or sometimes even F. You can test your own site or trusted sites like e-banking by visiting SSL Labs. If you would like an exclusive test for the Heartbleed attack, please click here.

In this blog, I will explain step-by-step how to achieve a grade of A+ and mitigate vulnerabilities such as Beast, Heartbleed, DROWN, and POODLE attacks with a strong choice of ciphers. All you need to do is update your OpenSSL and replace the default settings in your web server configuration file. Here are the steps on CentOS:

  1. Update OpenSSL:
    • Ensure you have the latest version of OpenSSL installed.
  2. Configure Strong Ciphers:
    • Replace default ciphers with a stronger selection in your web server configuration.
  3. Test and Verify:
    • Use SSL Labs to test your configuration and ensure you achieve a grade of A+.
    • Mitigate known vulnerabilities by following best practices and recommendations.

By following these steps, you can significantly enhance the security of your SSL and TLS connections, providing a safer experience for your users.

 

Scanners:

 

  • Scan your server for Beast attack.
  • Scan your server for Heartbleed attack.
  • Scan your server for POODLE attack.
  • Scan your server for DROWN attack.
  • Scan your client browser SSL.
  • HTTP vs HTTPS to compare load times of the unsecure HTTP and encrypted HTTPS versions of a page.

 

How to fix:

 To update to OpenSSL version 3 on CentOS:

ShellScript
sudo yum install perl-IPC-Cmd perl-Test-Simple

cd /usr/src
wget https://www.openssl.org/source/openssl-3.0.0.tar.gz
tar -zxf openssl-3.0.0.tar.gz
rm openssl-3.0.0.tar.gz

cd /usr/src/openssl-3.0.0
./config
make
make test
make install

ln -s /usr/local/lib64/libssl.so.3 /usr/lib64/libssl.so.3
ln -s /usr/local/lib64/libcrypto.so.3 /usr/lib64/libcrypto.so.3

openssl version

service httpd restart

 
Older versions like 1.1.1:
First you have to update your OpenSSL manual installation (centOS 5 or 6):
I am using openssl-1.1.1g get the latest version number from here.

rpm -qa openssl
yum clean all 
yum update "openssl*"
lsof -n | grep ssl | grep DEL
cd /usr/src
wget https://www.openssl.org/source/openssl-1.1.1g.tar.gz
tar -zxf openssl-1.1.1g.tar.gz
cd openssl-1.1.1g
./config --prefix=/usr --openssldir=/usr/local/openssl shared
./config
make
make test
make install
cd /usr/src
rm -rf openssl-1.1.1g.tar.gz
rm -rf openssl-1.1.1g

Verify that you are running the latest version of Openssl:

openssl version

If you still see the old version please run the following command:

sudo ln -sf /usr/local/ssl/bin/openssl `which openssl`

Check supported ciphers:

openssl ciphers
ShellScript



ShellScript
You will need to recompile Apache now:

/scripts/easyapache

Then locate your Web server config file:

locate -s httpd.conf

Edit the file with nano:

nano /usr/local/apache/conf/httpd.conf

Search for 'SSLCipherSuite' using CTRL W and replace it with:

# SSL stuff
# This will give rate of 95 on Protocol Support at SSL Labs(Recommended):
SSLProtocol -ALL +TLSv1.2 +TLSv1.3

SSLHonorCipherOrder On

# To get 100 on Cipher Strength and Key Exchange I use this combination of ciphers:
SSLCipherSuite "ECDHE-RSA-AES256-GCM-SHA384 CDHE-ECDSA-AES256-GCM-SHA384 ECDHE-RSA-AES256-SHA384 ECDHE-ECDSA-AES256-SHA384 ECDHE-RSA-AES256-SHA ECDHE-ECDSA-AES256-SHA DHE-DSS-AES256-GCM-SHA384 DHE-RSA-AES256-GCM-SHA384 DHE$

My preference is to paste all of the above into post_virtualhost_global.conf instead of httpd.conf:

nano /usr/local/apache/conf/includes/post_virtualhost_global.conf
or
nano /etc/apache2/conf.d/includes/post_virtualhost_2.conf

So the file would look like this:

# SSL stuff
# This will give rate of 95 on Protocol Support at SSL Labs(Recommended):
SSLProtocol -ALL +TLSv1.2 +TLSv1.3

SSLHonorCipherOrder On

# To get 100 on Cipher Strength and Key Exchange I use this combination of ciphers:
SSLCipherSuite "ECDHE-RSA-AES256-GCM-SHA384 CDHE-ECDSA-AES256-GCM-SHA384 ECDHE-RSA-AES256-SHA384 ECDHE-ECDSA-AES256-SHA384 ECDHE-RSA-AES256-SHA ECDHE-ECDSA-AES256-SHA DHE-DSS-AES256-GCM-SHA384 DHE-RSA-AES256-GCM-SHA384 DHE$

    

# Compression stuff: 
#Add to the end of the file the following:
AddOutputFilterByType DEFLATE text/plain
AddOutputFilterByType DEFLATE text/xml
AddOutputFilterByType DEFLATE application/xhtml+xml
AddOutputFilterByType DEFLATE text/css
AddOutputFilterByType DEFLATE application/xml
AddOutputFilterByType DEFLATE image/svg+xml
AddOutputFilterByType DEFLATE application/rss+xml
AddOutputFilterByType DEFLATE application/atom_xml
AddOutputFilterByType DEFLATE application/x-javascript
AddOutputFilterByType DEFLATE application/x-httpd-php
AddOutputFilterByType DEFLATE application/x-httpd-fastphp
AddOutputFilterByType DEFLATE application/x-httpd-eruby
AddOutputFilterByType DEFLATE text/html
SetOutputFilter DEFLATE
SetEnvIfNoCase Request_URI \.(?:gif|jpe?g|png)$ no-gzip dont-vary
SetEnvIfNoCase Request_URI \.(?:exe|t?gz|zip|bz2|sit|rar)$ no-gzip dont-vary
SetEnvIfNoCase Request_URI \.pdf$ no-gzip dont-vary
SetEnvIfNoCase Request_URI \.avi$ no-gzip dont-vary
SetEnvIfNoCase Request_URI \.mov$ no-gzip dont-vary
SetEnvIfNoCase Request_URI \.mp3$ no-gzip dont-vary
SetEnvIfNoCase Request_URI \.mp4$ no-gzip dont-vary
SetEnvIfNoCase Request_URI \.rm$ no-gzip dont-vary
BrowserMatch ^Mozilla/4 gzip-only-text/html
BrowserMatch ^Mozilla/4\.0[678] no-gzip
BrowserMatch \bMSI[E] !no-gzip !gzip-only-text/html
Header append Vary User-Agent env=!dont-vary
ShellScript

Your score should have grade A now:

ssl-labs report
ssl-labs report

 

ShellScript
Up to this level you should get grade A by ssllabs but if you need an A+ then you need to force https for every virtual host you have add this line just after virtual host ip:port

Header always set Strict-Transport-Security "max-age=63072000; includeSubDomains"

Or do it my way:

nano /usr/local/apache/conf/includes/pre_virtualhost_global.conf

Paste the following:

        # Use HTTP Strict Transport Security to force client to use secure connections only
        Header always set Strict-Transport-Security "max-age=15768000; includeSubDomains"

If you would like to exclude all other domains just use the following code:

<If "%{HTTP_HOST} = 'digi77.com'">

        # Use HTTP Strict Transport Security to force client to use secure connections only
        Header always set Strict-Transport-Security "max-age=15768000; includeSubDomains"

<If "%{HTTP_HOST} = 'www.digi77.com'">

        # Use HTTP Strict Transport Security to force client to use secure connections only
        Header always set Strict-Transport-Security "max-age=15768000; includeSubDomains"

Then let the Webserver force https on all http requests:

# Redirect from http to https
RewriteEngine on
RewriteCond %{HTTPS} off
RewriteRule ^(.*)$ https://%{HTTP_HOST}/$1 [R=301,L]

Finally, restart your Web server (Apache):

service httpd restart
ShellScript

Your score should have grade A+ now:
ssl

To mitigat POODLE attack, we removed SSL3 support as the following:

SSLProtocol all -SSLv2 -SSLv3

To get 100 scores on protocol support, you should only support TLSv1.2, which is impractical as many clients won’t support it:

SSLProtocol +TLSv1.2

ssl100
You can find more Linux commands here.

Extra:

 
moz://a SSL Configuration Generator here

ShellScript
If you get this error openssl: error while loading shared libraries: libssl.so.1.1: cannot open shared object file: No such file or directory then

sudo bash -c "echo '/usr/local/lib64' >> /etc/ld.so.conf"
sudo ldconfig

If you face error while using curl command such as:

url: (77) Problem with the SSL CA cert (path? access rights?)

Use the following command to fix it:

yum reinstall ca-certificates

Adding CAcert root certificate to (Debian/Ubuntu):

sudo mkdir /usr/local/share/ca-certificates/cacert.org
sudo wget -P /usr/local/share/ca-certificates/cacert.org http://www.cacert.org/certs/root.crt http://www.cacert.org/certs/class3.crt
sudo update-ca-certificates
ShellScript

Verbose listing of all OpenSSL except NULL and anonymous DH, then sort by strength:

ShellScript
openssl ciphers -v 'ALL:!ADH:@STRENGTH'
ShellScript

The output will look like this:

ShellScript
ECDHE-RSA-AES256-GCM-SHA384 TLSv1.2 Kx=ECDH     Au=RSA  Enc=AESGCM(256) Mac=AEAD
ECDHE-ECDSA-AES256-GCM-SHA384 TLSv1.2 Kx=ECDH     Au=ECDSA Enc=AESGCM(256) Mac=AEAD
ECDHE-RSA-AES256-SHA384 TLSv1.2 Kx=ECDH     Au=RSA  Enc=AES(256)  Mac=SHA384
ECDHE-ECDSA-AES256-SHA384 TLSv1.2 Kx=ECDH     Au=ECDSA Enc=AES(256)  Mac=SHA384
ECDHE-RSA-AES256-SHA    SSLv3 Kx=ECDH     Au=RSA  Enc=AES(256)  Mac=SHA1
ECDHE-ECDSA-AES256-SHA  SSLv3 Kx=ECDH     Au=ECDSA Enc=AES(256)  Mac=SHA1
DHE-DSS-AES256-GCM-SHA384 TLSv1.2 Kx=DH       Au=DSS  Enc=AESGCM(256) Mac=AEAD
DHE-RSA-AES256-GCM-SHA384 TLSv1.2 Kx=DH       Au=RSA  Enc=AESGCM(256) Mac=AEAD
DHE-RSA-AES256-SHA256   TLSv1.2 Kx=DH       Au=RSA  Enc=AES(256)  Mac=SHA256
DHE-DSS-AES256-SHA256   TLSv1.2 Kx=DH       Au=DSS  Enc=AES(256)  Mac=SHA256
DHE-RSA-AES256-SHA      SSLv3 Kx=DH       Au=RSA  Enc=AES(256)  Mac=SHA1
DHE-DSS-AES256-SHA      SSLv3 Kx=DH       Au=DSS  Enc=AES(256)  Mac=SHA1
DHE-RSA-CAMELLIA256-SHA SSLv3 Kx=DH       Au=RSA  Enc=Camellia(256) Mac=SHA1
DHE-DSS-CAMELLIA256-SHA SSLv3 Kx=DH       Au=DSS  Enc=Camellia(256) Mac=SHA1
AECDH-AES256-SHA        SSLv3 Kx=ECDH     Au=None Enc=AES(256)  Mac=SHA1
ECDH-RSA-AES256-GCM-SHA384 TLSv1.2 Kx=ECDH/RSA Au=ECDH Enc=AESGCM(256) Mac=AEAD
ECDH-ECDSA-AES256-GCM-SHA384 TLSv1.2 Kx=ECDH/ECDSA Au=ECDH Enc=AESGCM(256) Mac=AEAD
ECDH-RSA-AES256-SHA384  TLSv1.2 Kx=ECDH/RSA Au=ECDH Enc=AES(256)  Mac=SHA384
ECDH-ECDSA-AES256-SHA384 TLSv1.2 Kx=ECDH/ECDSA Au=ECDH Enc=AES(256)  Mac=SHA384
ECDH-RSA-AES256-SHA     SSLv3 Kx=ECDH/RSA Au=ECDH Enc=AES(256)  Mac=SHA1
ECDH-ECDSA-AES256-SHA   SSLv3 Kx=ECDH/ECDSA Au=ECDH Enc=AES(256)  Mac=SHA1
AES256-GCM-SHA384       TLSv1.2 Kx=RSA      Au=RSA  Enc=AESGCM(256) Mac=AEAD
AES256-SHA256           TLSv1.2 Kx=RSA      Au=RSA  Enc=AES(256)  Mac=SHA256
AES256-SHA              SSLv3 Kx=RSA      Au=RSA  Enc=AES(256)  Mac=SHA1
CAMELLIA256-SHA         SSLv3 Kx=RSA      Au=RSA  Enc=Camellia(256) Mac=SHA1
PSK-AES256-CBC-SHA      SSLv3 Kx=PSK      Au=PSK  Enc=AES(256)  Mac=SHA1
ECDHE-RSA-AES128-GCM-SHA256 TLSv1.2 Kx=ECDH     Au=RSA  Enc=AESGCM(128) Mac=AEAD
ECDHE-ECDSA-AES128-GCM-SHA256 TLSv1.2 Kx=ECDH     Au=ECDSA Enc=AESGCM(128) Mac=AEAD
ECDHE-RSA-AES128-SHA256 TLSv1.2 Kx=ECDH     Au=RSA  Enc=AES(128)  Mac=SHA256
ECDHE-ECDSA-AES128-SHA256 TLSv1.2 Kx=ECDH     Au=ECDSA Enc=AES(128)  Mac=SHA256
ECDHE-RSA-AES128-SHA    SSLv3 Kx=ECDH     Au=RSA  Enc=AES(128)  Mac=SHA1
ECDHE-ECDSA-AES128-SHA  SSLv3 Kx=ECDH     Au=ECDSA Enc=AES(128)  Mac=SHA1
DHE-DSS-AES128-GCM-SHA256 TLSv1.2 Kx=DH       Au=DSS  Enc=AESGCM(128) Mac=AEAD
DHE-RSA-AES128-GCM-SHA256 TLSv1.2 Kx=DH       Au=RSA  Enc=AESGCM(128) Mac=AEAD
DHE-RSA-AES128-SHA256   TLSv1.2 Kx=DH       Au=RSA  Enc=AES(128)  Mac=SHA256
DHE-DSS-AES128-SHA256   TLSv1.2 Kx=DH       Au=DSS  Enc=AES(128)  Mac=SHA256
DHE-RSA-AES128-SHA      SSLv3 Kx=DH       Au=RSA  Enc=AES(128)  Mac=SHA1
DHE-DSS-AES128-SHA      SSLv3 Kx=DH       Au=DSS  Enc=AES(128)  Mac=SHA1
ECDHE-RSA-DES-CBC3-SHA  SSLv3 Kx=ECDH     Au=RSA  Enc=3DES(168) Mac=SHA1
ECDHE-ECDSA-DES-CBC3-SHA SSLv3 Kx=ECDH     Au=ECDSA Enc=3DES(168) Mac=SHA1
DHE-RSA-SEED-SHA        SSLv3 Kx=DH       Au=RSA  Enc=SEED(128) Mac=SHA1
DHE-DSS-SEED-SHA        SSLv3 Kx=DH       Au=DSS  Enc=SEED(128) Mac=SHA1
DHE-RSA-CAMELLIA128-SHA SSLv3 Kx=DH       Au=RSA  Enc=Camellia(128) Mac=SHA1
DHE-DSS-CAMELLIA128-SHA SSLv3 Kx=DH       Au=DSS  Enc=Camellia(128) Mac=SHA1
EDH-RSA-DES-CBC3-SHA    SSLv3 Kx=DH       Au=RSA  Enc=3DES(168) Mac=SHA1
EDH-DSS-DES-CBC3-SHA    SSLv3 Kx=DH       Au=DSS  Enc=3DES(168) Mac=SHA1
AECDH-AES128-SHA        SSLv3 Kx=ECDH     Au=None Enc=AES(128)  Mac=SHA1
AECDH-DES-CBC3-SHA      SSLv3 Kx=ECDH     Au=None Enc=3DES(168) Mac=SHA1
ECDH-RSA-AES128-GCM-SHA256 TLSv1.2 Kx=ECDH/RSA Au=ECDH Enc=AESGCM(128) Mac=AEAD
ECDH-ECDSA-AES128-GCM-SHA256 TLSv1.2 Kx=ECDH/ECDSA Au=ECDH Enc=AESGCM(128) Mac=AEAD
ECDH-RSA-AES128-SHA256  TLSv1.2 Kx=ECDH/RSA Au=ECDH Enc=AES(128)  Mac=SHA256
ECDH-ECDSA-AES128-SHA256 TLSv1.2 Kx=ECDH/ECDSA Au=ECDH Enc=AES(128)  Mac=SHA256
ECDH-RSA-AES128-SHA     SSLv3 Kx=ECDH/RSA Au=ECDH Enc=AES(128)  Mac=SHA1
ECDH-ECDSA-AES128-SHA   SSLv3 Kx=ECDH/ECDSA Au=ECDH Enc=AES(128)  Mac=SHA1
ECDH-RSA-DES-CBC3-SHA   SSLv3 Kx=ECDH/RSA Au=ECDH Enc=3DES(168) Mac=SHA1
ECDH-ECDSA-DES-CBC3-SHA SSLv3 Kx=ECDH/ECDSA Au=ECDH Enc=3DES(168) Mac=SHA1
AES128-GCM-SHA256       TLSv1.2 Kx=RSA      Au=RSA  Enc=AESGCM(128) Mac=AEAD
AES128-SHA256           TLSv1.2 Kx=RSA      Au=RSA  Enc=AES(128)  Mac=SHA256
AES128-SHA              SSLv3 Kx=RSA      Au=RSA  Enc=AES(128)  Mac=SHA1
SEED-SHA                SSLv3 Kx=RSA      Au=RSA  Enc=SEED(128) Mac=SHA1
CAMELLIA128-SHA         SSLv3 Kx=RSA      Au=RSA  Enc=Camellia(128) Mac=SHA1
DES-CBC3-SHA            SSLv3 Kx=RSA      Au=RSA  Enc=3DES(168) Mac=SHA1
IDEA-CBC-SHA            SSLv3 Kx=RSA      Au=RSA  Enc=IDEA(128) Mac=SHA1
DES-CBC3-MD5            SSLv2 Kx=RSA      Au=RSA  Enc=3DES(168) Mac=MD5
IDEA-CBC-MD5            SSLv2 Kx=RSA      Au=RSA  Enc=IDEA(128) Mac=MD5
RC2-CBC-MD5             SSLv2 Kx=RSA      Au=RSA  Enc=RC2(128)  Mac=MD5
PSK-AES128-CBC-SHA      SSLv3 Kx=PSK      Au=PSK  Enc=AES(128)  Mac=SHA1
PSK-3DES-EDE-CBC-SHA    SSLv3 Kx=PSK      Au=PSK  Enc=3DES(168) Mac=SHA1
KRB5-IDEA-CBC-SHA       SSLv3 Kx=KRB5     Au=KRB5 Enc=IDEA(128) Mac=SHA1
KRB5-DES-CBC3-SHA       SSLv3 Kx=KRB5     Au=KRB5 Enc=3DES(168) Mac=SHA1
KRB5-IDEA-CBC-MD5       SSLv3 Kx=KRB5     Au=KRB5 Enc=IDEA(128) Mac=MD5
KRB5-DES-CBC3-MD5       SSLv3 Kx=KRB5     Au=KRB5 Enc=3DES(168) Mac=MD5
ECDHE-RSA-RC4-SHA       SSLv3 Kx=ECDH     Au=RSA  Enc=RC4(128)  Mac=SHA1
ECDHE-ECDSA-RC4-SHA     SSLv3 Kx=ECDH     Au=ECDSA Enc=RC4(128)  Mac=SHA1
AECDH-RC4-SHA           SSLv3 Kx=ECDH     Au=None Enc=RC4(128)  Mac=SHA1
ECDH-RSA-RC4-SHA        SSLv3 Kx=ECDH/RSA Au=ECDH Enc=RC4(128)  Mac=SHA1
ECDH-ECDSA-RC4-SHA      SSLv3 Kx=ECDH/ECDSA Au=ECDH Enc=RC4(128)  Mac=SHA1
RC4-SHA                 SSLv3 Kx=RSA      Au=RSA  Enc=RC4(128)  Mac=SHA1
RC4-MD5                 SSLv3 Kx=RSA      Au=RSA  Enc=RC4(128)  Mac=MD5
RC4-MD5                 SSLv2 Kx=RSA      Au=RSA  Enc=RC4(128)  Mac=MD5
PSK-RC4-SHA             SSLv3 Kx=PSK      Au=PSK  Enc=RC4(128)  Mac=SHA1
KRB5-RC4-SHA            SSLv3 Kx=KRB5     Au=KRB5 Enc=RC4(128)  Mac=SHA1
KRB5-RC4-MD5            SSLv3 Kx=KRB5     Au=KRB5 Enc=RC4(128)  Mac=MD5
EDH-RSA-DES-CBC-SHA     SSLv3 Kx=DH       Au=RSA  Enc=DES(56)   Mac=SHA1
EDH-DSS-DES-CBC-SHA     SSLv3 Kx=DH       Au=DSS  Enc=DES(56)   Mac=SHA1
DES-CBC-SHA             SSLv3 Kx=RSA      Au=RSA  Enc=DES(56)   Mac=SHA1
DES-CBC-MD5             SSLv2 Kx=RSA      Au=RSA  Enc=DES(56)   Mac=MD5
KRB5-DES-CBC-SHA        SSLv3 Kx=KRB5     Au=KRB5 Enc=DES(56)   Mac=SHA1
KRB5-DES-CBC-MD5        SSLv3 Kx=KRB5     Au=KRB5 Enc=DES(56)   Mac=MD5
EXP-EDH-RSA-DES-CBC-SHA SSLv3 Kx=DH(512)  Au=RSA  Enc=DES(40)   Mac=SHA1 export
EXP-EDH-DSS-DES-CBC-SHA SSLv3 Kx=DH(512)  Au=DSS  Enc=DES(40)   Mac=SHA1 export
EXP-DES-CBC-SHA         SSLv3 Kx=RSA(512) Au=RSA  Enc=DES(40)   Mac=SHA1 export
EXP-RC2-CBC-MD5         SSLv3 Kx=RSA(512) Au=RSA  Enc=RC2(40)   Mac=MD5  export
EXP-RC2-CBC-MD5         SSLv2 Kx=RSA(512) Au=RSA  Enc=RC2(40)   Mac=MD5  export
EXP-KRB5-RC2-CBC-SHA    SSLv3 Kx=KRB5     Au=KRB5 Enc=RC2(40)   Mac=SHA1 export
EXP-KRB5-DES-CBC-SHA    SSLv3 Kx=KRB5     Au=KRB5 Enc=DES(40)   Mac=SHA1 export
EXP-KRB5-RC2-CBC-MD5    SSLv3 Kx=KRB5     Au=KRB5 Enc=RC2(40)   Mac=MD5  export
EXP-KRB5-DES-CBC-MD5    SSLv3 Kx=KRB5     Au=KRB5 Enc=DES(40)   Mac=MD5  export
EXP-RC4-MD5             SSLv3 Kx=RSA(512) Au=RSA  Enc=RC4(40)   Mac=MD5  export
EXP-RC4-MD5             SSLv2 Kx=RSA(512) Au=RSA  Enc=RC4(40)   Mac=MD5  export
EXP-KRB5-RC4-SHA        SSLv3 Kx=KRB5     Au=KRB5 Enc=RC4(40)   Mac=SHA1 export
EXP-KRB5-RC4-MD5        SSLv3 Kx=KRB5     Au=KRB5 Enc=RC4(40)   Mac=MD5  export

For Windows Server Admins, here's the optimal ordered and curated cipher suite by Steve Gibson:

TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384_P384,
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA_P384,
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA_P384,
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA_P256,
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA_P256,
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256_P384,
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256_P384,
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256_P256,
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256_P256,
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA_P384,
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA_P256,
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA_P384,
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA_P256,
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P384,
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256,
TLS_DHE_DSS_WITH_AES_256_CBC_SHA256,
TLS_DHE_DSS_WITH_AES_256_CBC_SHA,
TLS_DHE_DSS_WITH_AES_128_CBC_SHA256,
TLS_DHE_DSS_WITH_AES_128_CBC_SHA,
TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA,
TLS_RSA_WITH_AES_256_CBC_SHA256,
TLS_RSA_WITH_AES_256_CBC_SHA,
TLS_RSA_WITH_AES_128_CBC_SHA256,
TLS_RSA_WITH_AES_128_CBC_SHA,
TLS_RSA_WITH_3DES_EDE_CBC_SHA,
SSL_CK_DES_192_EDE3_CBC_WITH_MD5

The following are auto update commands on CentOS but you won't get the latest version:

#Enterprise Linux 6
sudo rpm -ivh --nosignature http://rpm.axivo.com/axivo-release-6-1.noarch.rpm
#Enterprise Linux 7
sudo rpm -ivh --nosignature http://rpm.axivo.com/axivo-release-7-1.noarch.rpm
yum --enablerepo=axivo update openssl

Or install it if not installed :

sudo rpm -ivh --nosignature http://rpm.axivo.com/axivo-release-7-1.noarch.rpm
yum --enablerepo=axivo install openssl
ShellScript

For a proper AXIVO repository setup click here.

 

 

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