Tobias Franzén wrote:
Hi.
Is there a way to have a more fine-grained restriction for simple binds
rather than just On of Off? Maybe some ACL regexp?
For instance I want to restrict simple bind possibilities to direct
children of two or three OU groups, and furthermore I want to restrict
the simple binds for the normal users to those with a {SASL} entry in
their userPassword (or everyone if it cannot be specified separately).
I'm using the option "password-hash {CLEARTEXT}" and don't want users
without a userPassword like "{SASL}<uid>@REALM" to be allowed to do
simple binds to the LDAP database. I have a Kerberos realm setup to
handle passwords and saslauthd for the password check.
Some applications that I have running are not kerberized. So I can't
disable simple binds completely, since these applications still need to
do simple binds for authentication.
You might say that simple binds won't be possible if entries don't have
a userPassword attribute, but I'd like some better reassurance.
You can use access control on the userPassword attribute. Something like
access to attrs=userPassword
by group="ou=Simple Bind" auth
by * break
access to attrs=userPassword val.regex="^{SASL}.*"
by * auth
p.
Ing. Pierangelo Masarati
OpenLDAP Core Team
SysNet s.r.l.
via Dossi, 8 - 27100 Pavia - ITALIA
http://www.sys-net.it
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Office: +39 02 23998309
Mobile: +39 333 4963172
Email: pierangelo.masarati(a)sys-net.it
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