[jira] [Created] (NIFI-10674) Sensitive parameter reveal in evaluateELString

["Gogolev Sergey (Jira)" <ji...@apache.org>]

Gogolev Sergey created NIFI-10674:
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             Summary: Sensitive parameter reveal in evaluateELString
                 Key: NIFI-10674
                 URL: https://issues.apache.org/jira/browse/NIFI-10674
             Project: Apache NiFi
          Issue Type: Bug
          Components: Security, Variable Registry
    Affects Versions: 1.18.0
            Reporter: Gogolev Sergey
         Attachments: image-2022-10-20-00-06-19-498.png, image-2022-10-20-00-07-20-476.png, image-2022-10-20-00-08-52-510.png, image-2022-10-20-00-09-57-913.png

Not sure it's bug, but security breach. With expression language i can view content of sensitive parameter from parameter context. For example:
 # Create parameter context with sensitive parameter
!image-2022-10-20-00-06-19-498.png!
 # Create variable with name of this sensitive parameter #\{sample}
!image-2022-10-20-00-07-20-476.png!
 # Create simple flow with EL expression: ${secret:evaluateELString()}
!image-2022-10-20-00-08-52-510.png!
 # Content of this flowfile will contain sensitive value from parameter
!image-2022-10-20-00-09-57-913.png!

I suppose evaluateELString shouldn't access to sensitive parameters.



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