#VU82448 UNIX symbolic link following in CloudBees CD - CVE-2023-46655

Vulnerability identifier: #VU82448

Vulnerability risk: Medium

CVSSv4.0: 4.9 [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]

CVE-ID: CVE-2023-46655

CWE-ID: CWE-61

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
CloudBees CD
Web applications / Modules and components for CMS

Vendor: Jenkins

Description

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.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

CloudBees CD: 1.0 - 1.1.32

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

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.