Ensure sshd ReKeyLimit is configured

СредњаНиво 1Аутоматскаaix

Опис

This variable specifies the maximum amount of data that may be transmitted before the session key is renegotiated, optionally followed by a maximum amount of time that may pass before the session key is renegotiated. This recommendation is based on the guidelines outlined in Chapter 9 in [RFC4253], i.e. the recommendation is to release/renew Session keys after one hour or after the transfer of one gigabyte (depending on whichever comes first). Audit: evaluates the effective configuration from `sshd -T` (Match blocks must be reviewed separately).

Како се проверава

Метод провере: Команда љуске

shell

command -v sshd >/dev/null 2>&1 || exit 1; out=$(sshd -T 2>/dev/null) || exit 1; r=compliant; for p in '^rekeylimit[[:blank:]]+1073741824[[:blank:]]+3600$'; do printf '%s\n' "$out" | grep -Eiq -- "$p" || r="not matched: $p"; done; echo "$r"

Очекивани излаз: compliant

Како се исправља

Метод исправке: Смерница или закрпа инфраструктуре

Edit the /etc/ssh/sshd_config file to set the parameter as follows: RekeyLimit 1G 3600

Својства

Оперативни системи: Било који
Ознаке: aixssh
Референца: CIS IBM AIX 7 Benchmark v1.2.0 - 4.6.3.17 Ensure sshd ReKeyLimit is configured

Проверите овај рачунар

Покрените ово на рачунару за који имате дозволу за проверу. Скенирање ради у режиму само за читање.

shell

tmaegis scan --target aix