Improper Input Validation Affecting org.jenkins-ci.plugins:mailer package, versions [,1.32.1)
Snyk CVSS
Attack Complexity
High
Threat Intelligence
EPSS
0.09% (38th
percentile)
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Test your applications- Snyk ID SNYK-JAVA-ORGJENKINSCIPLUGINS-728004
- published 17 Sep 2020
- disclosed 17 Sep 2020
- credit Peter Stöckli (via Github Security Lab)
Introduced: 17 Sep 2020
CVE-2020-2252 Open this link in a new tabHow to fix?
Upgrade org.jenkins-ci.plugins:mailer to version 1.32.1 or higher.
Overview
Affected versions of this package are vulnerable to Improper Input Validation. It does not perform hostname validation when connecting to the configured SMTP server. This lack of validation could be abused using a man-in-the-middle attack to intercept these connections.Mailer Plugin 1.32.1 validates the SMTP hostname when connecting via TLS by default.