VULNERABILITY OVERVIEW $ ls -1 - - PowerPoint PPT Presentation

▶

Mar 15, 2023 246 likes •380 views

VULNERABILITY OVERVIEW $ ls -1 /sys/devices/system/cpu/vulnerabilities/* /sys/devices/system/cpu/vulnerabilities/meltdown /sys/devices/system/cpu/vulnerabilities/spectre_v 1

SLIDE 1

SLIDE 2

SLIDE 3

VULNERABILITY OVERVIEW

SLIDE 4

$ ls -1 /sys/devices/system/cpu/vulnerabilities/* /sys/devices/system/cpu/vulnerabilities/meltdown /sys/devices/system/cpu/vulnerabilities/spectre_v 1 /sys/devices/system/cpu/vulnerabilities/spectre_v 2

SLIDE 5

Userspace vs. Kernelspace

Userspace ( e.g. /bin/bash) Operating System (e.g. Linux kernel)

System Call Interface

SLIDE 6

SLIDE 7

SLIDE 8

SLIDE 9

SLIDE 10

○

echo 0 > /sys/kernel/debug/x86/pti_enabled

echo 0 > /sys/kernel/debug/x86/ibrs_enabled echo 0 > /sys/kernel/debug/x86/retp_enabled

SLIDE 11

SLIDE 12

SLIDE 13