Forum Discussion
mc1903_137193
Sep 25, 2015Nimbostratus
Client SSL Profile Cipher...Disable DES-CBC3-SHA.
One of my sites has just be penetration tested and a low risk was identified.
The following weak ciphers were supported
Testing SSL server mysite.fqdn on port 443
Supported Server Cipher(s):
...
Brad_Parker
Cirrus
This will disable 3DES and prioritize PFS and GCM.
'!EXPORT:!DH:!MD5:!SSLv3:!DTLSv1:ECDHE+AES-GCM:ECDHE+AES:ECDHE+3DES:ECDHE+RSA:RSA+AES-GCM:RSA+AES'
. Looks like you are wanting to also disable TLSv1? If that's the case add !TLSv1, i.e. '!EXPORT:!DH:!MD5:!SSLv3:!TLSv1:!DTLSv1:ECDHE+AES-GCM:ECDHE+AES:ECDHE+3DES:ECDHE+RSA:RSA+AES-GCM:RSA+AES'
Last thing, if you still want to support IE on XP 3DES is the only "secure" supported cipher left.Brad_Parker
Sep 25, 2015Cirrus
tmm --clientciphers '!EXPORT:!DH:!MD5:!SSLv3:!TLSv1:!DTLSv1:ECDHE+AES-GCM:ECDHE+AES:ECDHE+3DES:ECDHE+RSA:RSA+AES-GCM:RSA+AES' produces these ciphers and order.
ID SUITE BITS PROT METHOD CIPHER MAC KEYX
0: 49200 ECDHE-RSA-AES256-GCM-SHA384 256 TLS1.2 Native AES-GCM SHA384 ECDHE_RSA
1: 49199 ECDHE-RSA-AES128-GCM-SHA256 128 TLS1.2 Native AES-GCM SHA256 ECDHE_RSA
2: 49192 ECDHE-RSA-AES256-SHA384 256 TLS1.2 Native AES SHA384 ECDHE_RSA
3: 49172 ECDHE-RSA-AES256-CBC-SHA 256 TLS1.1 Native AES SHA ECDHE_RSA
4: 49172 ECDHE-RSA-AES256-CBC-SHA 256 TLS1.2 Native AES SHA ECDHE_RSA
5: 49191 ECDHE-RSA-AES128-SHA256 128 TLS1.2 Native AES SHA256 ECDHE_RSA
6: 49171 ECDHE-RSA-AES128-CBC-SHA 128 TLS1.1 Native AES SHA ECDHE_RSA
7: 49171 ECDHE-RSA-AES128-CBC-SHA 128 TLS1.2 Native AES SHA ECDHE_RSA
8: 49170 ECDHE-RSA-DES-CBC3-SHA 168 TLS1.1 Native DES SHA ECDHE_RSA
9: 49170 ECDHE-RSA-DES-CBC3-SHA 168 TLS1.2 Native DES SHA ECDHE_RSA
10: 157 AES256-GCM-SHA384 256 TLS1.2 Native AES-GCM SHA384 RSA
11: 156 AES128-GCM-SHA256 128 TLS1.2 Native AES-GCM SHA256 RSA
12: 61 AES256-SHA256 256 TLS1.2 Native AES SHA256 RSA
13: 53 AES256-SHA 256 TLS1.1 Native AES SHA RSA
14: 53 AES256-SHA 256 TLS1.2 Native AES SHA RSA
15: 60 AES128-SHA256 128 TLS1.2 Native AES SHA256 RSA
16: 47 AES128-SHA 128 TLS1.1 Native AES SHA RSA
17: 47 AES128-SHA 128 TLS1.2 Native AES SHA RSA
Recent Discussions
Related Content
DevCentral Quicklinks
* Getting Started on DevCentral
* Community Guidelines
* Community Terms of Use / EULA
* Community Ranking Explained
* Community Resources
* Contact the DevCentral Team
* Update MFA on account.f5.com
Discover DevCentral Connects