Ensure Address space layout randomization is enabled

OrtaDüzey 1Otomatikaix

Açıklama

Address space layout randomization (ASLR) is an exploit mitigation technique which randomly arranges the address space of key data areas of a process. The recommendations here are focused on a system level rather than enterprise. The controls mention both user and administrator accounts. For the purpose of this benchmark, and account is administrator when the AIX user attribute admin is true. Audit: automated read-only check derived from the CIS audit procedure; it prints "compliant" when the control is met.

Nasıl denetlenir

Denetim yöntemi: Kabuk komutu

shell

command -v vmo >/dev/null 2>&1 || exit 1; out=$(vmo -aF 2>/dev/null) || exit 1; r=compliant; for p in '^[[:blank:]]*aslr[[:blank:]]*=[[:blank:]]*2$' '^[[:blank:]]*aslr32[[:blank:]]*=[[:blank:]]*"?0"?$' '^[[:blank:]]*aslr64[[:blank:]]*=[[:blank:]]*"?0"?$' '^[[:blank:]]*aslr32r[[:blank:]]*=[[:blank:]]*333$' '^[[:blank:]]*aslr64r[[:blank:]]*=[[:blank:]]*33333$' '^[[:blank:]]*aslr_r[[:blank:]]*=[[:blank:]]*0$'; do printf '%s\n' "$out" | grep -Eq -- "$p" || r="missing: $p"; done; echo "$r"

Beklenen çıktı: compliant

Nasıl düzeltilir

Düzeltme yöntemi: Kılavuz veya altyapı yaması

Run the following command to enable ASLR for all programs: # /usr/sbin/vmo -r -o aslr=2 -o aslr32=0 -o aslr32r=333 -o aslr64=0 -o aslr64r=33333 -o alsr_r=0 A reboot is required before this change takes effect.

Özellikler

İşletim sistemleri: Herhangi biri
Etiketler: aixhardening
Referans: CIS IBM AIX 7 Benchmark v1.2.0 - 4.9.1 Ensure Address space layout randomization is enabled

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shell

tmaegis scan --target aix