Ensure Address space layout randomization is enabled

SedangLevel 1Otomatisaix

Deskripsi

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.

Cara pemeriksaan

Metode audit: Perintah shell

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"

Output yang diharapkan: compliant

Cara perbaikan

Metode perbaikan: Panduan atau patch infrastruktur

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.

Properti

Sistem operasi: Apa saja
Tag: aixhardening
Referensi: CIS IBM AIX 7 Benchmark v1.2.0 - 4.9.1 Ensure Address space layout randomization is enabled

Periksa host ini

Jalankan ini pada mesin yang diizinkan untuk Anda audit. Pemindaian bersifat hanya baca.

shell

tmaegis scan --target aix