Cleartext transmission of sensitive information in Jenkins Logstash Plugin

1) Cleartext transmission of sensitive information

EUVDB-ID: #VU26013

Risk: Low

CVSSv3.1: 2.7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-2143

CWE-ID: CWE-319 - Cleartext Transmission of Sensitive Information

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to software uses insecure communication channel to transmit sensitive information. A remote attacker with ability to intercept network traffic can gain access to sensitive data.

Note: The affected plugin stores credentials in its global configuration file "jenkins.plugins.logstash.LogstashConfiguration.xml" on the Jenkins master as part of its configuration.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Logstash: 0.7 - 2.3.1

External links

http://www.openwall.com/lists/oss-security/2020/03/09/1
http://jenkins.io/security/advisory/2020-03-09/#SECURITY-1516

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.