SB2023102612 - Multiple vulnerabilities in Jenkins CloudBees CD plugin

Description

This security bulletin contains information about 2 vulnerabilities.

1) UNIX symbolic link following (CVE-ID: CVE-2023-46654)

CWE-ID: CWE-61 - UNIX Symbolic Link (Symlink) Following

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

The vulnerability allows a remote attacker to delete arbitrary files.

The vulnerability exists due to a symlink following issue during this cleanup process. A remote user can delete arbitrary files on the Jenkins controller file system.

2) UNIX symbolic link following (CVE-ID: CVE-2023-46655)

CWE-ID: CWE-61 - UNIX Symbolic Link (Symlink) Following

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

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to a symlink following issue when collecting the list of files to publish. A remote user can publish arbitrary files from the Jenkins controller file system to the previously configured CloudBees CD server.

Remediation

Install update from vendor's website.

References

• http://www.openwall.com/lists/oss-security/2023/10/25/2
• https://www.jenkins.io/security/advisory/2023-10-25/#SECURITY-3237
• https://www.jenkins.io/security/advisory/2023-10-25/#SECURITY-3238