In 2025, the disk group is still the easiest privilege escalation vector on Linux — and most sysadmins forget it exists.
💥 Real-world abuse paths:
• Steal root’s SSH key via debugfs
• Persist with a SUID shell
• Escape Docker with --device=/dev/sda
• Even read /etc/shadow from a container
📉 Firewalls don’t help. Zero-trust doesn’t help. ls -l /dev/sda tells all.
👉 Learn how to defend your systems today:
https://levelup.gitconnected.com/linux-security-playbook-2025-disk-group-dangers-exposed-068a764f4771
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