TMA-BIND-4.2
Include Cryptographic Key Files
Açıklama
Do not place keys directly in the BIND named.conf, but use separate configuration files for the keys and include them into the named.conf file, in order to protect the keys from unintentional disclosure. The audit requires the main named.conf (/etc/named.conf, /etc/bind/named.conf or the chroot copy) to contain no secret statements; keys belong in separate included key files.
Nasıl denetlenir
Denetim yöntemi: Kabuk komutu
bad=''
for f in /etc/named.conf /etc/bind/named.conf /var/named/chroot/etc/named.conf; do [ -f "$f" ] || continue; grep -Eq '^[^#/]*secret[[:space:]]+"' "$f" && bad="$bad $f"; done
[ -z "$bad" ] && echo compliant || echo "secret keys embedded in:$bad"- Beklenen çıktı
compliant
Nasıl düzeltilir
Düzeltme yöntemi: Kılavuz veya altyapı yaması
Move each key definition statement from the named.conf file into its own key file. It is recommended to name both the key and the key file after the two hosts that will be sharing the secret key, in order to avoid confusion. Then include the key files with include statements in the named.conf. An example is shown below with the key definition statement moved to a separate key file, however it is also accepted for only the secret statement to be moved to another file. # grep -C 1 include /etc/named.conf // Include the key file used for the host1 and host2 TSIG comms include "/etc/private/host1-host2.cisecurity.org.key"
Özellikler
- İşletim sistemleri
- Herhangi biri
- Etiketler
- binddnstsig
- Referans
- CIS ISC BIND DNS Server 9.11 Benchmark v1.0.0 - 4.2 Include Cryptographic Key Files
Bu ana makineyi denetle
Bunu denetleme izniniz olan bir makinede çalıştırın. Tarama salt okunurdur.
tmaegis scan --target bind