Add linpeas privilege escalation checks from: HTB: Era – IDORs, PHP ssh2.exec Wrapper RCE, and Custom-Signed Binary Privilege

linPEAS/builder/linpeas_parts/8_interesting_perms_files/16_Writable_root_execs.sh

@@ -0,0 +1,36 @@
+# Title: Interesting Permissions Files - Writable root-owned executables
+# ID: IP_Writable_root_execs
+# Author: HT Bot
+# Last Update: 29-11-2025
+# Description: Locate root-owned executables outside home folders that the current user can modify
+# License: GNU GPL
+# Version: 1.0
+# Functions Used: print_2title, print_info, echo_not_found
+# Global Variables: $DEBUG, $IAMROOT, $ROOT_FOLDER, $HOME, $writeVB
+# Initial Functions:
+# Generated Global Variables: $writable_root_execs
+# Fat linpeas: 0
+# Small linpeas: 1
+
+if ! [ "$IAMROOT" ]; then
+  print_2title "Writable root-owned executables I can modify (max 200)"
+  print_info "https://book.hacktricks.wiki/en/linux-hardening/privilege-escalation/index.html#writable-files"
+
+  writable_root_execs=$(
+    find "$ROOT_FOLDER" -type f -user root -perm -u=x \
+      \( -perm -g=w -o -perm -o=w \) \
+      ! -path "/proc/*" ! -path "/sys/*" ! -path "/run/*" ! -path "/dev/*" ! -path "/snap/*" ! -path "$HOME/*" 2>/dev/null \
+      | while IFS= read -r f; do
+          if [ -w "$f" ]; then
+            ls -l "$f" 2>/dev/null
+          fi
+        done | head -n 200
+  )
+
+  if [ "$writable_root_execs" ] || [ "$DEBUG" ]; then
+    printf "%s\n" "$writable_root_execs" | sed -${E} "s,$writeVB,${SED_RED_YELLOW},"
+  else
+    echo_not_found "Writable root-owned executables"
+  fi
+  echo ""
+fi