Improper Input Validation Affecting org.jenkins-ci.plugins:mailer package, versions [,1.32.1)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team

    Threat Intelligence

    EPSS
    0.09% (40th percentile)

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  • Snyk ID SNYK-JAVA-ORGJENKINSCIPLUGINS-728004
  • published 17 Sep 2020
  • disclosed 17 Sep 2020
  • credit Peter Stöckli (via Github Security Lab)

How 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.

CVSS Scores

version 3.1
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Snyk

4.8 medium
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    High
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    Low
  • Integrity (I)
    Low
  • Availability (A)
    None
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NVD

4.8 medium
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Red Hat

4.8 medium