Hi Thierry,
that's a nasty catch…
On the one hand I think this is a nice feature to improve security, but
on the other hand PBKDF2_SHA256 is the one algorithm that freeradius
cannot cope with.
I suppose there is no way to revert all changed hashes after I set
"nsslapd-enable-upgrade-hash" to "off"? Other than to reinitialize all
affected suffixes from the export of the old servers?
Julian
Am 22.11.22 um 09:56 schrieb Thierry Bordaz:
Hi Julian,
This is likely the impact of
https://github.com/389ds/389-ds-base/issues/2480 that was introduced in
1.4.x.
On 1.4.4 default hash is PBKDF2, this ticket upgrade hash of user
entries during the user bind (enabled with nsslapd-enable-upgrade-hash).
best regards
thierry
On 11/22/22 09:25, Julian Kippels wrote:
Hi,
We have a radius server that reads the userPassword-attribute from
ldap to authenticate users. There is a strange phenomenon where
sometimes the answer from the ldap-server gives the wrong password
hash algorithm. Our global password policy storage scheme is set to
SSHA. When I perform a ldapsearch as directory manager I see that the
password hash for a given user is {SSHA}inserthashedpasswordhere. But
when I run tcpdump to see what our radius is being served I see
{PBKDF2_SHA256}someotherhash around 50% of the time. Sometime another
request from radius a few seconds after the first one gives the
correct {SSHA} response.
This happened right after we updated from 389ds 1.2.2 to 1.4.4.
I am a bit stumped.
Thanks in advance,
Julian
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