CVE-2019-1003043

Description

Jenkins Slack Notification Plugin did not perform permission checks on a method implementing form validation. This allowed users with Overall/Read access to Jenkins to connect to an attacker-specified URL using attacker-specified credentials IDs obtained through another method, capturing credentials stored in Jenkins. Additionally, this form validation method did not require POST requests, resulting in a cross-site request forgery vulnerability. This form validation method now requires POST requests and Overall/Administer (for global configuration) or Item/Configure permissions (for job configuration).

How to fix CVE-2019-1003043

To remediate CVE-2019-1003043, upgrade the affected package to a fixed version below.

• —upgrade to 2.20 or later

Is CVE-2019-1003043 being exploited?

Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.

Affected packages (1)

• from 0, < 2.20

CVSS scores

References (6)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2019-1003043
• PATCHgithub.com/jenkinsci/slack-plugin
• WEBgithub.com/jenkinsci/slack-plugin/commit/0268bbefdcc283effd27be5318770f7e75c6f102
• WEBjenkins.io/security/advisory/2019-03-25/#SECURITY-976