Ensure access on /etc/ssh/sshd_config is configured

MoyenneNiveau 1Automatiséeaix

Description

The /etc/ssh/sshd_config file defines SSH server behavior. The SSH daemon reads the configuration information from this file and includes the authentication mode and cryptographic levels to use during SSH communication. Audit: compares `ls -ld` mode (this mode or more restrictive), owner and group with the CIS values; ACLs are not evaluated.

Méthode de vérification

Méthode d'audit: Commande shell

shell

r=compliant; for f in /etc/ssh/sshd_config; do if [ -e "$f" ]; then set -- $(ls -ld "$f"); s=$(printf '%s %s %s\n' "$1" "$3" "$4" | awk -v m='rw-r--r--' -v o='root' -v g='system' '{ok=1; for(i=1;i<=9;i++) if(substr(m,i,1)=="-" && substr($1,i+1,1)!="-") ok=0; if(o!="" && $2 !~ ("^(" o ")$")) ok=0; if(g!="" && $3 !~ ("^(" g ")$")) ok=0; print (ok ? "ok" : $0)}'); [ "$s" = ok ] || r="$f: $s"; else r="$f: missing"; fi; done; echo "$r"

Sortie attendue: compliant

Méthode de correction

Méthode de correction: Recommandation ou correctif d'infrastructure

Change the permissions of the /etc/ssh/sshd_config file to ensure all accounts can read the file but only the owner (root) can modify it: chown root:system /etc/ssh/sshd_config chmod u=rw,go=r /etc/ssh/sshd_config

Propriétés

Systèmes d'exploitation: Tous
Étiquettes: aixssh
Référence: CIS IBM AIX 7 Benchmark v1.2.0 - 4.1.1.9 Ensure access on /etc/ssh/sshd_config is configured

Vérifier cet hôte

Exécutez cette commande sur une machine que vous êtes autorisé à auditer. L'analyse est en lecture seule.

shell

tmaegis scan --target aix