The Lightweight Directory Access Protocol is an application protocol for reading and editing directories that follow the Directory Information Model over an IP network using unsecured TCP/IP, TLS or SSL. LDAP is a binary protocol described in terms of ASN.1 and transmitted using ASN.1 Basic Encoding ...

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How to test ldap that authenticates with kerberos

I want to test an ldap directory with ldapsearch. No passwords are stored in the LDAP directory. Account passwords are stored in Kerberos and LDAP contains a pointer to the Kerberos principal. The ...
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0answers
40 views

Open ldap start tls succesful even after CA is removed

I have one question related to how openldap and openssl handles the CA and server certificates. I have openldap client using openssl. My intention is to establish a ldaps connection to the ldap ...
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0answers
9 views

Does openldap stores the ssl context in global variable after the first start_tls?

Does openldap stores the ssl conext which is passed to SSL_connect ?
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0answers
52 views

How to add user entries with password field in LDAP over HTTPS

I am new to this kind of stuff (HTTPS etc.) and pretty much confused on how to go ahead with this. An LDAP server (ApacheDS) at the back-end stores the user details. To add new users, the user ...
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2answers
49 views

Authenticating AD user over TCP socket

I have a server that communicates with clients over a .NET socket. I want the server to authenticate the connection in an SSO kind of style by checking that the current user is in a certain group. ...
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1answer
38 views

How to sync with multiple authentication services?

I have a peculiar case to work on. We are using a proprietary product which supports LDAP integration. However, it can be configured to use only one LDAP service. (most of the products are shipped ...
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1answer
81 views

Ldap differences between {crypt} and {CRYPT}

I recently stumbled upon some password entries in LDAP marked with the {crypt} scheme. Since all recent entries are {CRYPT}, I was wondering what the differences between the hash algorithms are.
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3answers
126 views

Is it secure to be using LDAP, or is LDAPS the only secure option?

I am currently using an LDAP setup. I am wondering if it is secure from Man-in-the-middle attacks or other vulnerabilities?
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2answers
698 views

What are best practices for implementing ACL

I have a website that has certain menu items that need to be hidden from end users. The web site has PHP in the front-end and Java and Spring in the back-end, deployed on a Linux OS in a VM ...
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1answer
205 views

.net System.Security.Principal.WindowsPrincipal user namespace ldap injection

A recent scan of a .net web application detected an ldap injection vulnerability for a field that was used for a username assigned to an instance of a custom class named User. After stepping through ...
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1answer
142 views

LDAP and anonymous bind for PCI compliance

We have to setup a central auth for PCI compliance and I'm wondering if it's ok to allow anonymous bind or should I create a user to do the bind for the services needing ldap?
4
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3answers
2k views

Safe to expose Active Directory via LDAPS externally?

We currently access Active Directory via LDAPS internally for authentication and user data retrieval. Is it common, or safe, to expose this publicly over LDAPs? Addendum 1: Our business case, ...
0
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1answer
119 views

SSL Auth to proxy using Certificate on Client-side

The question may need to be reworded. The server-side is set up with Squid3 acting as an Authenticating proxy by way of LDAP. I did this for testing purposes to make sure everything was working. I ...
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6answers
1k views

How can I best manage root passwords for many servers?

Lets say I have two racks with about 40 nix servers in them. I don't want to set all of the root user passwords all the same do I? If not how do you manage and keep up with all of the passwords? Is ...
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2answers
354 views

OpenLDAP version 2.4.24 at risk? Site to check for known vulnerabilities with version used?

We use OpenLDAP version 2.4.24 $ /usr/local/libexec/slapd -VV @(#) $OpenLDAP: slapd 2.4.24 (Mar 5 2011 06:36:43) $ steve@sunblade2500:/bigdisk/SOURCES/S10/openldap-2.4.24/servers/slapd ...
2
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2answers
391 views

Vuln Web App which includes LDAP Injection?

I want to check several techniques for LDAP injection, but I cannot find a vulnerable application (like Webgoat, Hacme etc.) which uses LDAP injection. Do you know of any vulnerable web application ...
3
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2answers
737 views

SASL Authentication Protocol with No Cleartext passwords

As you know, LDAP supports three authentication mechanisms: anonymous, simple and SASL. The first one is only suitable for particular cases, and therefore I'm not going to talk about that. The ...
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2answers
1k views

How do I sanitize LDAP input and prevent injection attacks? What LDAP injection scenarios are possible?

In the following C# example I'm querying AD's configuration container for Exchange overrides. If the domain name in unsanitised the end user could get LDAP to read a different object then intended. ...
3
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1answer
178 views

Complex Consumer Matching Queries with PGP Universal

For group membership I am using LDAP for performing the consumer matching. I can pretty clearly see how to do simple matches with ORs or ANDs, but I would like to match in a more complicated fashion. ...
2
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1answer
902 views

What information is exposed in AD's Service Connection Points (SCP)

Active Directory offers a feature called Service Connection Points to publish information to applications so they can discover the relevant server; however the documentation is sparse and I have ...
8
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1answer
208 views

What practical uses are there for the AD feature of “Confidential Attributes”

Are any applications (off the shelf, or internal) leveraging Active Directory's Confidential Attributes? Would you store sensitive information here such as a private key, or a salt here? I'm ...
3
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2answers
1k views

LDAP Security problems?

I have installed many Active Directory (AD) based networks and have applied various standard security templates based on best practices, however I have never really looked at LDAP on a deeper level ...
5
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2answers
321 views

Oracle Internet Directory (OID) hardening

What are best practices, recommendations, required reading for securing/hardening an Oracle internet directory? note: OID is compatible with LDAP version 3.
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2answers
3k views

LDAP vs MySQL for Usernames and Passwords

I understand the LDAP databases are more secure, but is it always necessary to use LDAP instead of MySQL for usernames and passwords?