What is LDAP Enumeration?

What is LDAP Enumeration?

What is LDAP Enumeration? – Lightweight Directory Access Protocol (LDAP) is an Internet Protocol for accessing distributed directory services.

Directory services may provide any organized set of records, often in a hierarchical and logical structure, such as a corporate email directory.

A client strats a LDAP session by connecting to a Directory System Agent (DSA) on TCP port 389 and then sends an Operation request to the DSA.

Information is transmitted between the client and the server using Basic Encoding Rules (BER).

Attackers queries LDAP service to gather information such as valid user names, addresses departmental details etc. that can be further used to perform attacks.

What is LDAP Enumeration?

Various protocols enable communication and manage data transfer between network resources. All of these protocols carry valuable information about network resources along with the data. An external user who is able to enumerate that information by manipulating the protocols, can break into the network and may misuse the network resources.

The Lightweight Directory Access Protocol (LDAP) is one such protocol that accesses the directory listings. This section focuses on LDAP enumeration, information, information extracted via LDAP enumeration, and LDAP enumeration tools.

What is LDAP Enumeration?

LLDAP is an Internet Protocol for accessing distributed services. LDAP accesses directory listings within an Active Directory or form other directory services. LDAP is a hierarchical or logical form of a directory, similar to a company’s org chart.

Directory services may provide any organized set records, often in a hierarchical and logical structure, such as a corporate email directory. It uses DNS for quick lookups and fast resolution of queries. A client starts an LDAP session by connecting to a Directory System Agent (DSA) typically on TCP port 389 and sends an operation request to the DSA.

Basic Encoding Rules (BER) transmits information between the client and the server.

One can anonymously query the LDAP service for sensitive information such as user names, addresses, departmental details, server names, etc. Which an attacker can use to launch attacks.

What is LDAP Enumeration?

LDAP Enumeration Tools

There are many LDAP enumeration tools that access the directory listings within Active Directory or other directory services, Using these tools, attacker can enumerate information such as valid user names, addresses, departmental details, etc. from different LDAP servers.

Softerra LDAP Administrator

Source : Softerra LDAP Tool

Softerra LDAP Administrator is an LDAP administrator tool that works with LDAP servers such as Active Directory, Novell Directory Services, Netscape/iPlanet, etc. It browses and manages LDAP directories. Additionally, it provides a wide variety of feature essential for LDAP development. deployment and administration of directories.

Features:

  • It Provides directory search facilities, bulk update operations, group membership management facilities, etc.
  • It supports LDAP-SQL, which allows managing LDAP entries using SQL- like syntax.

Some of the LDAP enumeration tools are listed below:

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