HighOS hardeningBLWK-WIN-003

Windows Firewall is off for a network profile

What this means

The firewall is off for: ‹firewall off profiles›. On a network of that type, every listening service on this machine can be reached.

How to fix it

Turn it back on in Windows Security → Firewall & network protection, or run Set-NetFirewallProfile -All -Enabled True in an elevated PowerShell.

Check it yourself

Run a scan and look for BLWK-WIN-003 in the results:

bulwark scan

Installed the standalone CLI package instead of the app? The command is bulwarkctl.

How Bulwark decides

Bulwark reads windows_security and reports this check when:

firewall_all_on_known == true and firewall_all_on == false

If a value can't be read, Bulwark reports the check as undetermined rather than passing it. View the rule source.

References

• MITRE ATT&CK T1562.004

Related checks

• Cron entry runs a downloader piped to a shell · BLWK-ACCT-001
• Password maximum age is excessively long · BLWK-ACCT-002
• Password minimum age is zero · BLWK-ACCT-003
• Password hashing rounds are not explicitly configured · BLWK-ACCT-004
• Default UMASK is not explicitly configured · BLWK-ACCT-005
• A sensitive system file is world-writable · BLWK-FS-001