Ensure address space layout randomization (ASLR) is enabled

SrednjaNivo 1Automatskabottlerocket

Opis

Address space layout randomization (ASLR) is an exploit mitigation technique which randomly arranges the address space of key data areas of a process. The audit reads /proc/sys/kernel/randomize_va_space and requires 2. Run tmaegis on the host through the admin container root shell (sudo sheltie).

Kako se proverava

Metod provere: Komanda ljuske

shell

bad=0
chk() { f=/proc/sys/$(printf %s "$1" | tr . /); v=$(cat "$f" 2>/dev/null) || { echo "$1: not readable"; bad=1; return; }; [ "$v" = "$2" ] || { echo "$1 = $v (expected $2)"; bad=1; }; }
chk kernel.randomize_va_space 2
[ "$bad" -eq 0 ] && echo compliant

Očekivani izlaz: compliant

Kako se ispravlja

Metod ispravke: Smernica ili zakrpa infrastrukture

Run the following command to set the active kernel parameter and persist the setting: # apiclient apply <<EOF [settings.kernel.sysctl] "kernel.randomize_va_space" = "2" EOF

Svojstva

Operativni sistemi: Bilo koji
Oznake: bottlerocketsystem
Referenca: CIS Bottlerocket Benchmark v1.0.0 - 1.4.2 Ensure address space layout randomization (ASLR) is enabled

Proverite ovaj računar

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

shell

tmaegis scan --target bottlerocket