Vulnerability identifier: #VU23677

Vulnerability risk: Medium

CVSSv3.1: 5 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N/E:U/RL:U/RC:C]

CVE-ID: CVE-2019-16559

CWE-ID: CWE-284

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
WebSphere Deployer
Web applications / Modules and components for CMS

Vendor: Jenkins

Description

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

The vulnerability exists due to the affected software does not perform permission checks in methods performing form validation. A remote user with Overall/Read access can perform connection tests, determine whether files with an attacker-specified path exist on the Jenkins master file system, and obtain limited information about the Jenkins and plugin configuration based on the responses.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

WebSphere Deployer: 1.1 - 1.6.1

---

External links
http://jenkins.io/security/advisory/2019-12-17/#SECURITY-1371

---

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.