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Login with Active Directory User / LDAP Configuration

See original GitHub issue

Hello everyone,

for the past days I’ve tried to hook up 4minitz to our Active Directory via LDAP configuration. For the moment and after reading #348 up and downwards I’m totally lost.

After testing on the stable release I’m currenty using this docker :

Version: {
    "tag": "v1.1.0-develop",
    "branch": "develop",
    "commitlong": "8bb7c937b9e8bdb536ec918db67b287fc269cf62",
    "commitshort": "8bb7c937",
    "date": "2018-01-07"
}

And my configuration for LDAP looks like this :

"ldap": {
        "enabled": true,
        "propertyMap": {
            "username": "sAMAccountName",
            "longname": "cn",
            "email": "mail"
        },
        "//1": "Optional, will perform bind with these credentials before searching for users",
        "authentication": {
            "userDn": "cn=Global LDAP Helper, ou=ServiceUser, ou=DE-User, dc=ourdomain, dc=de",
            "password": "supersecretpassword"
        },
        "searchFilter": "(objectClass=user)",
        "serverDn": "DC=ourdomain,DC=de",
        "serverUrl": "ldap://dc1.ourdomain.de:389",
        "allowSelfSignedTLS": true,
        "whiteListedFields": [ "sAMAccountName", "cn", "department", "employeeNumber", "mail", "mailEnabled" ],
        "inactiveUsers": {"strategy": "userAccountControl"},
        "autopublishFields": [ "cn" ],
        "importCronTab": false
    },

From the 4minitz logfile I’m getting this :

LDAP bind failed with error
{"dn":"","code":49,"name":"InvalidCredentialsError","message":"80090308: LdapErr: DSID-0C09042F, comment: AcceptSecurityContext error, data 52e, v2580\u0000"}

I’m confused cause the bind with the configured “userDn” setup within “authentication” never took place. Wireshark told me that only the username of my testuser that tried to login on the webinterface was submitted :

171	24.876221144	172.17.0.72	192.168.1.18	LDAP	134	bindRequest(1) "sAMAccountName=testuser,DC=ourdomain,DC=de" simple 
172	24.876638474	192.168.1.18	172.17.0.72	LDAP	176	bindResponse(1) invalidCredentials (80090308: LdapErr: DSID-0C09042F, comment: AcceptSecurityContext error, data 52e, v2580)

I’ve also played with "bindWith": "dn", but that just led to "dn=testuser,DC=ourdomain,DC=de" simple which will never work cause the users dn is "dn=testuser,OU=Testing,OU=DE-Users,DC=ourdomain,DC=de"

What was also tested :

        "authentication": {
            "userDn": "globalldaphelper@ourdomain.de",
            "password": "supersecretpassword"
        },

        "authentication": {
            "userDn": "NETBIOS\globalldaphelper,
            "password": "supersecretpassword"
        },

        "authentication": {
            "userDn": "NETBIOS\\globalldaphelper,
            "password": "supersecretpassword"
        },

I’ve also tested "importOnLaunch": true, but that didn’t seem to have any effects. Shouldn’t there be any entries in the log if the import starts oder fails on some point? Wireshark didn’t show any action either.

What am I missing?

Appreciate any help on this.