Secure Permissions for Default Database File Path (DFTDBPATH)

How it is checked

Audit method: Shell command

out=$(db2 get dbm cfg 2>/dev/null) || exit 1; p=$(printf '%s\n' "$out" | sed -n 's/.*(DFTDBPATH) *= *//p' | sed 's/[[:space:]]*$//'); [ -n "$p" ] || { echo compliant; exit 0; }; [ -e "$p" ] || { echo "noncompliant: $p does not exist"; exit 0; }; w=$(find "$p" -prune \( -perm -020 -o -perm -002 \) -print); [ -z "$w" ] && echo compliant || echo "noncompliant: $p is group/world writable"

Expected output

compliant

How it is fixed

Fix method: Guidance or infrastructure patch

For Windows and Linux: 1. Attach to the Db2 instance. db2 => attach to <db2instance> 2. Run the following command to change the default file path, if necessary: db2 => update database manager configuration using dftdbpath <valid directory> Additional steps for Windows: 1. Connect to the Db2 host 2. Right-click over the directory used as the default file path 3. Choose Properties 4. Select the Security tab 5. Assign ownership of the directory to the Db2 Administrator 6. Grant all Db2 administrator accounts the Full Control authority 7. Grant only read and execute privileges to all other users (revoke all other privileges) Additional steps for Linux: 1. Connect to the Db2 host 2. Change to the directory used as the default file path 3. Assign the Db2 Administrator to be the owner of the directory using the chown command 4. Change the permissions for the directory $ chmod -R 755

Check this host

Run this on a machine you are allowed to audit. The scan is read-only.

tmaegis scan --target db2