Ensure sshd MaxAuthTries is configured

SrednjaNivo 1Automatskaaix

Opis

The MaxAuthTries parameter specifies the maximum number of authentication attempts permitted per connection. When the login failure count reaches half the number, error messages will be written to the syslog file detailing the login failure. Setting the MaxAuthTries parameter to a low number will minimize the risk of successful brute force attacks to the SSH server. While the recommended setting is 4, set the number based on site policy. Audit: evaluates the effective configuration from `sshd -T` (Match blocks must be reviewed separately).

Kako se proverava

Metod provere: Komanda ljuske

shell

command -v sshd >/dev/null 2>&1 || exit 1; out=$(sshd -T 2>/dev/null) || exit 1; r=compliant; for p in '^maxauthtries[[:blank:]]+[1-4]$'; do printf '%s\n' "$out" | grep -Eiq -- "$p" || r="not matched: $p"; done; echo "$r"

Očekivani izlaz: compliant

Kako se ispravlja

Metod ispravke: Smernica ili zakrpa infrastrukture

Edit the/etc/ssh/sshd_config file to set the parameter as follows:: MaxAuthTries 4 Re-cycle the sshd daemon to pick up the configuration changes: stopsrc -s sshd startsrc -s sshd

Svojstva

Operativni sistemi: Bilo koji
Oznake: aixssh
Referenca: CIS IBM AIX 7 Benchmark v1.2.0 - 4.6.3.12 Ensure sshd MaxAuthTries is configured

Proverite ovaj računar

Pokrenite ovo na računaru za koji imate dozvolu za proveru. Skeniranje radi u režimu samo za čitanje.

shell

tmaegis scan --target aix