Vulnerability identifier: #VU25287

Vulnerability risk: Medium

CVSSv3.1: 6.2 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-2117

CWE-ID: CWE-284

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Pipeline GitHub Notify Step
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 on a method implementing form validation. A remote user with Overall/Read access can connect to an attacker-specified URL using attacker-specified credentials IDs obtained through another method, capturing credentials stored in Jenkins.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Pipeline GitHub Notify Step: 1.0.0 - 1.0.4

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External links
http://www.openwall.com/lists/oss-security/2020/02/12/3
http://jenkins.io/security/advisory/2020-02-12/#SECURITY-812%20(1)

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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.