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Re: ssf Security Question



William Brown wrote:
> Just want to point out there are some security risks with ssf settings.
> I have documented these here:
> 
> https://fy.blackhats.net.au/blog/html/2016/11/23/the_minssf_trap.html

Nice writeup. I always considered SSF values to be naive and somewhat
overrated. People expect too much when looking at these numbers -
especially regarding the "strength" of cryptographic algorithms which
changes over time anyway with new cryptanalysis results coming up.

Personally I always try to implement a TLS-is-must policy and prefer
LDAPS (with correct protocol and ciphersuites configured) over
LDAP/StartTLS to avoid this kind of pre-TLS leakage.
Yes, I deliberately ignore "LDAPS is deprecated". ;-]

Furthermore some LDAP server implementation (IIRC e.g. MS AD) refuse to
accept SASL/GSSAPI bind requests sent over TLS-secured channel. Which is
IMO also somewhat questionable.

Ciao, Michael.

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