CVE-2020-24660 : What You Need to Know

An issue was discovered in LemonLDAP::NG through 2.0.8, when NGINX is used. This vulnerability allows an attacker to bypass URL-based access control to protected Virtual Hosts by submitting a non-normalized URI.

Understanding CVE-2020-24660

This CVE identifies a security flaw in LemonLDAP::NG that affects versions up to 2.0.8 when used with NGINX, as well as versions before 0.5.2 of the Lemonldap::NG handler for Node.js package.

What is CVE-2020-24660?

The vulnerability in LemonLDAP::NG allows attackers to circumvent URL-based access controls on protected Virtual Hosts by submitting a non-normalized URI.

The Impact of CVE-2020-24660

This vulnerability could potentially lead to unauthorized access to protected resources and compromise the security of the affected systems.

Technical Details of CVE-2020-24660

This section provides more in-depth technical information about the CVE.

Vulnerability Description

The issue in LemonLDAP::NG allows attackers to bypass URL-based access control mechanisms.

Affected Systems and Versions

LemonLDAP::NG versions up to 2.0.8 when used with NGINX
Versions before 0.5.2 of the Lemonldap::NG handler for Node.js package

Exploitation Mechanism

Attackers can exploit this vulnerability by submitting a non-normalized URI to bypass access controls.

Mitigation and Prevention

To address CVE-2020-24660, follow these mitigation strategies:

Immediate Steps to Take

Update LemonLDAP::NG to version 2.0.9 or later
Apply patches provided by the vendor
Monitor and restrict access to vulnerable systems

Long-Term Security Practices

Regularly update and patch software to prevent vulnerabilities
Implement strong access control mechanisms and monitoring tools

Patching and Updates

Stay informed about security advisories and updates from LemonLDAP::NG
Apply security patches promptly to mitigate risks