An Oracle DB user which has been granted CREATE ANY DIRECTORY can use that system privilege to grant themselves the SYSDBA system privilege by creating a DIRECTORY pointing to the password file location on the OS and then overwriting it with a previously prepared known binary password file using UTL_FILE.PUT_RAW from within the DB. This paper will show how the issue can be exploited and most importantly how to secure against it.
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© 2012 Packet Storm. All rights reserved.
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