From IBM DB2 V10.5 LUW Security Technical Implementation Guide
Part of SRG-APP-000380-DB-000360
Associated with: CCI-001813
Failure to provide logical access restrictions associated with changes to configuration may have significant effects on the overall security of the system.
The base installation directory of the database server software and instance home directory location is configurable at the time of installation. Run the db2level command to find the installation directory of DB2 server software: $db2level If any user other than the sysadmin and root users has write permission on these directories and subsequent subdirectories under this directory, this is a finding. On Linux and UNIX operating systems, the instance directory is located in the $INSTHOME/sqllib directory, where $INSTHOME is the home directory of the instance owner. On Windows operating systems, the instance directory is located under the /sqllib directory where the DB2 database product was installed. If any user other than the instance owner and the root user has write permission to instance home directory and subsequent subdirectories under it, this is a finding.
Remove the write permission from non-root/non-sysadmin users on the DB2 installation base directory and instance home directory.
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