CVE-2023-41900 : What You Need to Know

This article provides detailed information about CVE-2023-41900, a vulnerability in Jetty's OpenId Revoked authentication that allows one request.

Understanding CVE-2023-41900

Jetty's OpenId Revoked authentication vulnerability impacts the security of Java-based web servers and servlet engines. It affects specific versions of the Jetty project, allowing bypass of authentication mechanisms.

What is CVE-2023-41900?

The CVE-2023-41900 vulnerability in Jetty's OpenId Revoked authentication arises due to weak authentication implementation in certain versions of the Jetty project. It allows an authenticated user to bypass subsequent authentication checks, compromising system security.

The Impact of CVE-2023-41900

The impact of CVE-2023-41900 is significant, as it enables unauthorized access in affected versions of the Jetty project. Attackers can exploit this vulnerability to gain access to sensitive data or perform malicious activities without proper authentication.

Technical Details of CVE-2023-41900

Jetty's OpenId Revoked authentication vulnerability is characterized by weak authentication practices and a specific scenario where authenticated users can bypass further authentication checks.

Vulnerability Description

Jetty versions 9.4.21 through 9.4.51, 10.0.15, and 11.0.15 contain the vulnerability, allowing authorized users to bypass authentication after being rejected by the system. Versions 9.4.52, 10.0.16, and 11.0.16 have patches available to address this issue.

Affected Systems and Versions

The vulnerability affects specific versions of the Jetty project, including 9.4.21 through 9.4.51, 10.0.0 through 10.0.15, and 11.0.0 through 11.0.15. Users of these versions are at risk of unauthorized access.

Exploitation Mechanism

By exploiting the weakness in Jetty's OpenId Revoked authentication, attackers can manipulate the authentication process to bypass security checks and gain unauthorized access to the system.

Mitigation and Prevention

To mitigate the risks associated with CVE-2023-41900, immediate steps should be taken to address the vulnerability and prevent unauthorized access.

Immediate Steps to Take

Users of affected Jetty versions should apply the available patches provided by the project to secure their systems. Additionally, reviewing authentication configurations and monitoring user authentication processes are essential steps to prevent exploitation.

Long-Term Security Practices

In the long term, organizations should prioritize regular security updates, conduct security assessments and audits, and implement robust authentication mechanisms to enhance system security.

Patching and Updates

It is crucial to stay informed about security patches and updates released by the Jetty project. Timely application of patches is necessary to protect systems from known vulnerabilities.