Set "mesg n" as Default for All Users

NiedrigStufe 1Automatisiertsolaris

Beschreibung

The "mesg n" command blocks attempts to use the write or talk commands to contact users at their terminals, but has the side effect of slightly strengthening permissions on the user's tty device. Since write and talk are no longer widely used at most sites, the incremental security increase is worth the loss of functionality. Audit: automated read-only check derived from the CIS audit procedure; it prints "compliant" when the control is met.

So wird geprüft

Prüfmethode: Shell-Befehl

shell

r=compliant; grep -q "^mesg n" /etc/.login 2>/dev/null || r="mesg n missing in /etc/.login"; grep -q "^mesg n" /etc/profile 2>/dev/null || r="mesg n missing in /etc/profile"; echo "$r"

Erwartete Ausgabe: compliant

So wird behoben

Behebungsmethode: Anleitung oder Infrastruktur-Patch

Perform the following to implement the recommended state: # cd /etc # for file in profile .login ; do if [ "`grep mesg $file`" ]; then awk '$1 == "mesg" { $2 = "n" } { print }' $file > $file.CIS mv $file.CIS $file else echo mesg n >> $file fi done

Eigenschaften

Betriebssysteme: Beliebig
Tags: solarisaccounts
Referenz: CIS Oracle Solaris 11.4 Benchmark v1.1.0 - 7.5 Set "mesg n" as Default for All Users

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shell

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