CVE-2020-2120: Improper Restriction of XML External Entity Reference

February 12, 2020 (updated February 14, 2020)

Jenkins FitNesse Plugin does not configure the XML parser to prevent XML external entity (XXE) attacks. This allows a user able to control the input files for its post-build step to have Jenkins parse a crafted file that uses external entities for extraction of secrets from the Jenkins master, server-side request forgery, or denial-of-service attacks.

References

jenkins.io/security/advisory/2020-02-12/
nvd.nist.gov/vuln/detail/CVE-2020-2120

Code Behaviors & Features

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