Fang-Yu Rao created IMPALA-10434:
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Summary: SHOW GRANT statement should perform a check for
requesting user
Key: IMPALA-10434
URL: https://issues.apache.org/jira/browse/IMPALA-10434
Project: IMPALA
Issue Type: Bug
Components: Frontend, Security
Reporter: Fang-Yu Rao
Assignee: Fang-Yu Rao
We found that the {{SHOW GRANT}} statement does not really perform a check for
the requesting user to determine whether the requesting user is authorized to
access the result. Specifically, there is no such check in
[RangerImpaladAuthorizationManager#getPrivileges()|https://github.com/apache/impala/blob/master/fe/src/main/java/org/apache/impala/authorization/ranger/RangerImpaladAuthorizationManager.java#L340-L403].
Recall that such a check was performed when we were using Sentry as the
authorization provider. Refer to
[SentryImpaladAuthorizationManager#getPrivileges()|https://gerrit.cloudera.org/c/15833/8/fe/src/main/java/org/apache/impala/authorization/sentry/SentryImpaladAuthorizationManager.java#b203].
Such an issue is partly due to the fact that we do not have a dedicated Ranger
API to check whether a user is a Ranger administrator, which is also currently
tracked at [RANGER-3127|https://issues.apache.org/jira/browse/RANGER-3127].
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