[sudo-users] problems with sudo, ldap, and passwords

[Todd C. Miller]

This sounds more like a PAM issue than an LDAP issue.  One FreeBSD
user has reported problems caused by the following in auth/pam.c:

    /*
     * Set PAM_RUSER to the invoking user (the "from" user).
     * We set PAM_RHOST to avoid a bug in Solaris 7 and below.
     */
    (void) pam_set_item(pamh, PAM_RUSER, user_name);
    (void) pam_set_item(pamh, PAM_RHOST, user_host);

You could try commenting that bit out and see if the behavior changes.

 - todd