Improper Certificate Validation in Spira Importer plugin for Jenkins



Published: 2019-12-18
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-16558
CWE-ID CWE-295
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Spira Importer
Web applications / Modules and components for CMS

Vendor Jenkins

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Improper Certificate Validation

EUVDB-ID: #VU23676

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-16558

CWE-ID: CWE-295 - Improper Certificate Validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a man-in-the-middle (MiTM) attack.

The vulnerability exists due to the affected software unconditionally disables SSL/TLS certificate validation for the entire Jenkins master JVM. A remote attacker can supply a specially crafted SSL/TLS certificate, conduct man-in-the-middle attacks and connect to a targeted system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Spira Importer: 3.2.3

External links

http://jenkins.io/security/advisory/2019-12-17/#SECURITY-1580


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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



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