Ensure Only the Necessary SELinux Booleans are Enabled

NiedrigStufe 2Automatisiertbind

Beschreibung

SELinux booleans allow or disallow specific behaviors. There are two boolean variables specific to the ISC BIND DNS server: ; named_tcp_bind_http_port - Allow named to tcp bind http port ; named_write_master_zones - Allow named to write master zones The named_tcp_bind_http_port would allow enabling the BIND statistics http channel which is not recommended. The audit runs getsebool named_tcp_bind_http_port and requires off (named_write_master_zones is not audited).

So wird geprüft

Prüfmethode: Shell-Befehl

shell

v=$(getsebool named_tcp_bind_http_port 2>/dev/null) || exit 1
case "$v" in *'--> off') echo compliant ;; *) echo "$v" ;; esac

Erwartete Ausgabe: compliant

So wird behoben

Behebungsmethode: Anleitung oder Infrastruktur-Patch

Perform the following to implement the recommended state: Disable the SELinux boolean using the setsebool command as shown below with the -P option to make the change persistent. # setsebool -P named_tcp_bind_http_port off

Eigenschaften

Betriebssysteme: Beliebig
Tags: binddnsselinux
Referenz: CIS ISC BIND DNS Server 9.11 Benchmark v1.0.0 - 10.4 Ensure Only the Necessary SELinux Booleans are Enabled

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shell

tmaegis scan --target bind --level 2