Ensure sshd PermitUserEnvironment is disabled

OrtaDüzey 1Otomatikaix

Açıklama

The PermitUserEnvironment option allows users to present environment options to the SSH daemon. Permitting users the ability to set environment variables through the SSH daemon could potentially allow users to bypass security controls (e.g. setting an execution path that has SSH executing trojan'd programs) Audit: evaluates the effective configuration from `sshd -T` (Match blocks must be reviewed separately).

Nasıl denetlenir

Denetim yöntemi: Kabuk komutu

shell

command -v sshd >/dev/null 2>&1 || exit 1; out=$(sshd -T 2>/dev/null) || exit 1; r=compliant; for p in '^permituserenvironment[[:blank:]]+no$'; do printf '%s\n' "$out" | grep -Eiq -- "$p" || r="not matched: $p"; done; echo "$r"

Beklenen çıktı: compliant

Nasıl düzeltilir

Düzeltme yöntemi: Kılavuz veya altyapı yaması

Edit the /etc/ssh/sshd_config file to set the parameter: PermitUserEnvironment no Re-cycle the sshd daemon to pick up the configuration changes: stopsrc -s sshd startsrc -s sshd

Özellikler

İşletim sistemleri: Herhangi biri
Etiketler: aixssh
Referans: CIS IBM AIX 7 Benchmark v1.2.0 - 4.6.3.16 Ensure sshd PermitUserEnvironment is disabled

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Bunu denetleme izniniz olan bir makinede çalıştırın. Tarama salt okunurdur.

shell

tmaegis scan --target aix