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https://issues.apache.org/jira/browse/SOLR-15525?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17378153#comment-17378153
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Timothy Potter commented on SOLR-15525:
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As a really simple hack, we could alter the
{{VMParamsSingleSetCredentialsDigestZkCredentialsProvider}} and
{{VMParamsAllAndReadonlyDigestZkACLProvider}} to support a syntax like:
{{env:PASSWORD_IN_ENV_VAR}} to allow loading the passwords from an environment
variable instead of a system property ...
> Provide zkCredentialsProvider and zkACLProvider that loads credentials from a
> file or env vars instead of sys props
> -------------------------------------------------------------------------------------------------------------------
>
> Key: SOLR-15525
> URL: https://issues.apache.org/jira/browse/SOLR-15525
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Components: security
> Reporter: Timothy Potter
> Assignee: Timothy Potter
> Priority: Major
>
> Currently, the {{VMParamsSingleSetCredentialsDigestZkCredentialsProvider}}
> and {{VMParamsAllAndReadonlyDigestZkACLProvider}} load ZK credentials from
> Java system properties. Solr should provide an alternative impl to load this
> information from a file (and maybe env vars too). This avoids leaking the
> credentials in the JVM system properties that get logged as well as shown in
> the UI.
> It would also be nice if this file could store the credentials encrypted, as
> suggested by SOLR-11655, however that requires a global encryption password
> (such as http://www.jasypt.org/) so is merely security through obscurity b/c
> anyone with shell access could track down this encryption password and
> decrypt the ZK credentials in the file. Of course every Solr node has its own
> private key for the PKI auth frmk, but that's not helpful for this problem
> because the encryption key needs to be shared among all the nodes so they can
> decrypt the ZK creds. So I'm going to skip that part for now and just
> implement loading the plain-text creds from a file.
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