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Ethical Hacking Academy · Lesson

Kernel Exploits

Escalation via kernel.

Escalation via the Kernel

When configuration is locked down, the kernel itself may be the weak point. A bug in kernel code — reachable from an unprivileged process — can be exploited to execute code in ring 0 and gain root.

Identifying the Kernel

Everything starts with the exact kernel version and distro. A specific build maps to specific public CVEs and exploits.

uname -r
uname -a
cat /proc/version
cat /etc/os-release

All lessons in this course

  1. Enumeration
  2. SUID and Sudo Abuse
  3. Cron Jobs and PATH
  4. Kernel Exploits
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