Big linpeas update

linPEAS/builder/linpeas_parts/functions/containerCheck.sh

@@ -0,0 +1,71 @@
+# Title: Container - containerCheck
+# ID: containerCheck
+# Author: Carlos Polop
+# Last Update: 22-08-2023
+# Description: Check if we are inside a container
+# License: GNU GPL
+# Version: 1.0
+# Functions Used: echo_no
+# Global Variables: 
+# Initial Functions:
+# Generated Global Variables: $inContainer, $containerType
+# Fat linpeas: 0
+# Small linpeas: 1
+
+
+containerCheck() {
+  inContainer=""
+  containerType="$(echo_no)"
+
+  # Are we inside docker?
+  if [ -f "/.dockerenv" ] ||
+    grep "/docker/" /proc/1/cgroup -qa 2>/dev/null ||
+    grep -qai docker /proc/self/cgroup  2>/dev/null ||
+    [ "$(find / -maxdepth 3 -name '*dockerenv*' -exec ls -la {} \; 2>/dev/null)" ] ; then
+
+    inContainer="1"
+    containerType="docker\n"
+  fi
+
+  # Are we inside kubenetes?
+  if grep "/kubepod" /proc/1/cgroup -qa 2>/dev/null ||
+    grep -qai kubepods /proc/self/cgroup 2>/dev/null; then
+
+    inContainer="1"
+    if [ "$containerType" ]; then containerType="$containerType (kubernetes)\n"
+    else containerType="kubernetes\n"
+    fi
+  fi
+  
+  # Inside concourse?
+  if grep "/concourse" /proc/1/mounts -qa 2>/dev/null; then
+    inContainer="1"
+    if [ "$containerType" ]; then 
+      containerType="$containerType (concourse)\n"
+    fi
+  fi
+
+  # Are we inside LXC?
+  if env | grep "container=lxc" -qa 2>/dev/null ||
+      grep "/lxc/" /proc/1/cgroup -qa 2>/dev/null; then
+
+    inContainer="1"
+    containerType="lxc\n"
+  fi
+
+  # Are we inside podman?
+  if env | grep -qa "container=podman" 2>/dev/null ||
+      grep -qa "container=podman" /proc/1/environ 2>/dev/null; then
+
+    inContainer="1"
+    containerType="podman\n"
+  fi
+
+  # Check for other container platforms that report themselves in PID 1 env
+  if [ -z "$inContainer" ]; then
+    if grep -a 'container=' /proc/1/environ 2>/dev/null; then
+      inContainer="1"
+      containerType="$(grep -a 'container=' /proc/1/environ | cut -d= -f2)\n"
+    fi
+  fi
+}