detecting-container-escape-attempts

# Detecting Container Escape Attempts ## Overview Container escape is a critical attack technique where an adversary breaks out of container isolation to access the host system or other containers. Detection involves monitoring for escape indicators such as namespace manipulation, capability abuse, kernel exploits, mounted sensitive paths, and anomalous syscall patterns using runtime security tools like Falco, Sysdig, and custom seccomp/audit rules. ## When to Use - When investigating security incidents that require detecting container escape attempts - When building detection rules or threat hunting queries for this domain - When SOC analysts need structured procedures for this analysis type - When validating security monitoring coverage for related attack techniques ## Prerequisites - Linux host with kernel 5.10+ (eBPF support) - Falco 0.37+ installed (kernel module or eBPF probe) - Docker Engine or containerd runtime - auditd configured - Root access for eBPF/kernel module loading ## Core Concepts ### Common Container Escape Vectors | Vector | Technique | MITRE ID | |--------|-----------|----------| | Privileged containers | Mount host filesystem, load kernel modules | T1611 | | Docker socket mount | Create privileged container from within | T1610 | | Kernel exploits | CVE-2022-0185 (fsconfig), Dirty Pipe, runc CVEs | T1068 | | Capability abuse | CAP_SYS_ADMIN, CAP_SYS_PTRACE, CAP_NET_ADMIN | T1548 | | Sensitive mounts | /proc/sysrq-trigger, /proc/kcore, cgroup r...