CVE-2020-2252
UNKNOWN
Published 2020-09-16T13:20:38
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No CVSS data available
Description
Jenkins Mailer Plugin 1.32 and earlier does not perform hostname validation when connecting to the configured SMTP server.
Available Exploits
No exploits available for this CVE.
Related News
No news articles found for this CVE.
Affected Products
Affected Versions:
GitHub Security Advisories
Community-driven vulnerability intelligence from GitHub
✓ GitHub Reviewed
MODERATE
Improper Validation of Certificate with Host Mismatch in Jenkins Mailer Plugin
GHSA-6fr3-286q-q3crAdvisory Details
Jenkins Mailer Plugin prior to 1.32.1, 1.31.1, and 1.29.1 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, 1.31.1, and 1.29.1 validates the SMTP hostname when connecting via TLS by default. In Mailer Plugin 1.32 and earlier, administrators can set the Java system property mail.smtp.ssl.checkserveridentity to true on startup to enable this protection.
In case of problems, this protection can be disabled again by setting the Java system property mail.smtp.ssl.checkserveridentity to false on startup.
Affected Packages
Maven
org.jenkins-ci.plugins:mailer
ECOSYSTEM:
≥1.32
<1.32.1
Maven
org.jenkins-ci.plugins:mailer
ECOSYSTEM:
≥1.30
<1.31.1
Maven
org.jenkins-ci.plugins:mailer
ECOSYSTEM:
≥0
<1.29.1
CVSS Scoring
CVSS Score
5.0
CVSS Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
References
Advisory provided by GitHub Security Advisory Database. Published: May 24, 2022, Modified: May 23, 2023
References
Published: 2020-09-16T13:20:38
Last Modified: 2024-08-04T07:01:41.144Z
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