The DBCPConnectionPool and HikariCPConnectionPool Controller Services in Apache NiFi 0.0.2 through 1.21.0 allow an authenticated and authorized user to configure a Database URL with the H2 driver that enables custom code execution. This exploit will result in several shells (5-7). Successfully tested against Apache nifi 1.17.0 through 1.21.0.
Unix
cmd
To display the available options, load the module within the Metasploit console and run the commands 'show options' or 'show advanced':
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