LDAP Crafted Search Request Access Allowed

Hi there guys.

Recently we had an internal audit and it seems that our opelndap server is not configured properly, it seems that null bind are allowed and Crafted request as well are permited and it would be nice if anyone of you could lend me a hand to fix this:

There are the access list:

olcAccess: {0}to attrs=userPassword by dn="cn=Manager,dc=domain,dc=com" wr
ite by anonymous auth by self write by * none

olcAccess: {1}to attrs=cn,sn,memberUid,uidNumber,pwdHistory,pwdPolicySubentry,
gidNumber,homeDirectory,givenName,description,loginShell by self write by ano
nymous read by * none

olcAccess: {2}to dn.base="" by * read

olcAccess: {3}to * by dn="cn=Manager,dc=domain,dc=com" write by * read

And from a client I got the following:

ldapsearch -x -s base -b '' -H ldap://ldapserver "(objectClass=*)" "*" +
# extended LDIF
#
# LDAPv3
# base <> with scope baseObject
# filter: (objectClass=*)
# requesting: * +

#
dn:
objectClass: top
objectClass: OpenLDAProotDSE
structuralObjectClass: OpenLDAProotDSE
configContext: cn=config
monitorContext: cn=Monitor
namingContexts: dc=domain,dc=com
supportedControl: 2.16.840.1.113730.3.4.18
supportedControl: 2.16.840.1.113730.3.4.2

supportedControl: 1.3.6.1.4.1.4203.1.10.1
supportedControl: 1.2.840.113556.1.4.319
supportedControl: 1.2.826.0.1.3344810.2.3
supportedControl: 1.3.6.1.1.13.2
supportedControl: 1.3.6.1.1.13.1
supportedControl: 1.3.6.1.1.12
supportedExtension: 1.3.6.1.4.1.1466.20037
supportedExtension: 1.3.6.1.4.1.4203.1.11.1
supportedExtension: 1.3.6.1.4.1.4203.1.11.3
supportedExtension: 1.3.6.1.1.8
supportedFeatures: 1.3.6.1.1.14
supportedFeatures: 1.3.6.1.4.1.4203.1.5.1
supportedFeatures: 1.3.6.1.4.1.4203.1.5.2
supportedFeatures: 1.3.6.1.4.1.4203.1.5.3
supportedFeatures: 1.3.6.1.4.1.4203.1.5.4
supportedFeatures: 1.3.6.1.4.1.4203.1.5.5
supportedLDAPVersion: 3
entryDN:
subschemaSubentry: cn=Subschema

It seems it's no good at all, any help appreciated
Best regards