SMP73
Aug 18, 2023Altostratus
Most up to date Cipher Suite for version 14.1.x to increase BitSight findings?
Trying to improve some BitSight findings on our externally hosted sites. Bitsight is kind of vague on its findings and explanations. I know there used to be a page somewhere that had up to date Cip...
- Aug 29, 2023
These are the default 14.1.x ciphers: https://my.f5.com/manage/s/article/K54125331
And these are all the 14.1.x ciphers: https://my.f5.com/manage/s/article/K97098157
I'd probably kill all TLSv1.0 and v1.1 ciphers to start:
DEFAULT:!TLSv1:!TLSv1_1
In 14.1.x the DHE key is 1024 bit, which can get you dinged, so probably turn those off:
DEFAULT:!TLSv1:!TLSv1_1:!DHE
If this doesn't do it, probably remove RSA (key exchange) & SHA1 ciphers:
DEFAULT:!TLSv1:!TLSv1_1:!DHE:!RSA:!SHA
That wil basically bring you to a subset of ECDHE ciphers with SHA256/SHA384.