LDAP Server Default Login Scanner
This scanner detects the use of LDAP Server in digital assets. It identifies instances where the LDAP server permits anonymous access, posing a security risk by exposing unsecured endpoints.
Short Info
Level
Medium
Single Scan
Single Scan
Can be used by
Asset Owner
Estimated Time
10 seconds
Time Interval
20 days 12 hours
Scan only one
Domain, IPv4, Subdomain
Toolbox
-
The LDAP Server is a critical component in IT environments, providing the backbone for authentication services. Used widely by businesses, educational institutions, and governmental bodies, LDAP Servers enable the centralized management of directories and user data. They facilitate secure user access, resource management, and authorization protocol across various digital platforms. The use of LDAP is integral for maintaining organizational IT infrastructures, helping automate directory management and enhancing security protocols. However, misconfigurations or default setups can lead to vulnerabilities. Ensuring robust setup and routine security checks helps mitigate such risks.
The vulnerability in this context arises from LDAP Server's potential to allow anonymous access through a null bind, essentially enabling unauthorized users to connect to the directory without proper authentication. This can be exploited to gather information or potentially compromise sensitive data. By not requiring credentials, these LDAP servers grant access privileges that could be misused by attackers to explore network resources or obtain confidential information. Such misconfigurations undermine network security, making it imperative to address these weaknesses promptly.
Technically, the vulnerability results from incorrect or default configurations in the LDAP Server, allowing anonymous bind requests. When a NULL BIND is accepted, it can be used to list directory contents unauthorizedly. The vulnerable endpoint usually exists at the network TCP port 389, where LDAP services are accessed. The vulnerability can also extend to different services if they are interconnected via the LDAP protocol. It's crucial to understand how this exposure may affect network infrastructure and data security.
If exploited by malicious individuals, this vulnerability can lead to unauthorized disclosure of information from the LDAP directory, which may include sensitive personnel data or infrastructure details. It can serve as a precursor to more severe attacks, such as privilege escalation or network mapping for persistent threats. This kind of exposure poses significant security risks, potentially leading to data breaches or further exploitation.
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