SB2024081207 - Multiple vulnerabilities in Jenkins and Jenkins LTS

Description

This security bulletin contains information about 2 vulnerabilities.

1) Improper access control (CVE-ID: CVE-2024-43044)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions within the "ClassLoaderProxy#fetchJar" method in the Remoting library. A remote attacker can read arbitrary files on the Jenkins controller file system, leading to arbitrary code execution.

2) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2024-43045)

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists due to application does not perform a permission check in an HTTP endpoint. A remote user can access or change other users' "My Views".

Remediation

Install update from vendor's website.

References

• https://www.jenkins.io/security/advisory/2024-08-07/#SECURITY-3430
• https://www.jenkins.io/security/advisory/2024-08-07/#SECURITY-3349