CVE-2020-2253
First published: Wed Sep 16 2020(Updated: )
Jenkins Email Extension Plugin 2.75 and earlier does not perform hostname validation when connecting to the configured SMTP server.
Credit: jenkinsci-cert@googlegroups.com jenkinsci-cert@googlegroups.com jenkinsci-cert@googlegroups.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Jenkins Email Extension | <=2.75 | |
| maven/org.jenkins-ci.plugins:email-ext | <=2.75 | 2.76 |
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Reference Links
- http://www.openwall.com/lists/oss-security/2020/09/16/3
- https://www.jenkins.io/security/advisory/2020-09-16/#SECURITY-1851
- https://nvd.nist.gov/vuln/detail/CVE-2020-2253
- https://github.com/jenkinsci/email-ext-plugin/commit/ac039ba581f5946975a327709ff201b459900caa
- https://github.com/advisories/GHSA-4qrj-99r6-jfrh (Advisory)
Frequently Asked Questions
What is CVE-2020-2253?
CVE-2020-2253 is a vulnerability in Jenkins Email Extension Plugin 2.75 and earlier versions that allows man-in-the-middle attacks.
What is the severity of CVE-2020-2253?
CVE-2020-2253 has a severity rating of medium.
Which software versions are affected by CVE-2020-2253?
Jenkins Email Extension Plugin versions 2.75 and earlier versions are affected by CVE-2020-2253.
How can CVE-2020-2253 be exploited?
CVE-2020-2253 can be exploited by performing a man-in-the-middle attack to intercept the connections.
Is there a fix for CVE-2020-2253?
Yes, the fix for CVE-2020-2253 is available in Email Extension Plugin version 2.76.
- collector/nvd-index
- collector/nvd-api
- collector/nvd-cve
- collector/github-advisory-latest
- alias/GHSA-4qrj-99r6-jfrh
- alias/CVE-2020-2253
- collector/github-advisory
- vendor/jenkins
- canonical/jenkins email extension
- version/jenkins email extension/2.75
- package-manager/maven