CVE-2023-50777: 
Java vulnerability analysis and mitigation

Jenkins PaaSLane Estimate Plugin version 1.0.4 and earlier contains a security vulnerability (CVE-2023-50777) related to insufficient protection of authentication tokens. The vulnerability was disclosed on December 13, 2023, affecting the job configuration form functionality of the plugin (Jenkins Advisory, OSS Security).

The vulnerability is classified as Medium severity with a CVSS v3.1 base score of 4.3 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N). The issue stems from the plugin's failure to mask PaaSLane authentication tokens that are displayed on the job configuration form. This security weakness is tracked under CWE-312 (Cleartext Storage of Sensitive Information) (NVD).

The vulnerability increases the potential for attackers to observe and capture authentication tokens displayed in the job configuration form. Users with access to the Jenkins interface could potentially view and collect these exposed tokens, which could lead to unauthorized access to PaaSLane resources (Jenkins Advisory).

As of the advisory's publication date (December 13, 2023), there is no fix available for this vulnerability. Users should implement additional security controls to restrict access to job configurations and monitor for unauthorized access attempts (Jenkins Advisory).

The vulnerability was discovered and reported by Andrea Chiera from CloudBees, Inc., highlighting the ongoing security research efforts within the Jenkins ecosystem (Jenkins Advisory).