Vulnerability identifier: #VU24767

Vulnerability risk: High

CVSSv3.1: 7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L/E:U/RL:U/RC:C]

CVE-ID: CVE-2020-2108

CWE-ID: CWE-611

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 access to sensitive information.

The vulnerability exists due to insufficient validation of user-supplied XML input. A remote user with Job/Configure permissions can pass a specially crafted war file containing a "WEB-INF/ibm-web-ext.xml" which is parsed by the plugin and view contents of arbitrary files on the system or initiate requests to external systems.

Successful exploitation of the vulnerability may allow an attacker to view contents of arbitrary file on the server or perform network scanning of internal and external infrastructure.

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

Vulnerable software versions

WebSphere Deployer: 1.1 - 1.6.1

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External links
http://www.openwall.com/lists/oss-security/2020/01/29/1
http://jenkins.io/security/advisory/2020-01-29/#SECURITY-1719

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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.