CVE-2020-8516

{"id": "CVE-2020-8516", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 5.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "NONE", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 1.4, "exploitabilityScore": 3.9}]}, "published": "2020-02-02T13:15:10.903", "references": [{"url": "https://lists.torproject.org/pipermail/tor-dev/2020-February/014146.html", "tags": ["Mailing List", "Vendor Advisory"], "source": "cve@mitre.org"}, {"url": "https://lists.torproject.org/pipermail/tor-dev/2020-February/014147.html", "tags": ["Mailing List", "Vendor Advisory"], "source": "cve@mitre.org"}, {"url": "https://security-tracker.debian.org/tracker/CVE-2020-8516", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://trac.torproject.org/projects/tor/ticket/33129", "tags": ["Issue Tracking", "Vendor Advisory"], "source": "cve@mitre.org"}, {"url": "https://www.hackerfactor.com/blog/index.php?/archives/868-Deanonymizing-Tor-Circuits.html", "tags": ["Exploit", "Mitigation", "Technical Description", "Third Party Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "The daemon in Tor through 0.4.1.8 and 0.4.2.x through 0.4.2.6 does not verify that a rendezvous node is known before attempting to connect to it, which might make it easier for remote attackers to discover circuit information. NOTE: The network team of Tor claims this is an intended behavior and not a vulnerability"}, {"lang": "es", "value": "** EN DISPUTA ** El demonio en Tor hasta la versi\u00f3n 0.4.1.8 y versiones 0.4.2.x hasta la versi\u00f3n 0.4.2.6, no comprueba que un nodo rendezvous sea conocido antes de intentar conectarse a \u00e9l, lo que podr\u00eda facilitar a atacantes remotos descubrir informaci\u00f3n del circuito. NOTA: El equipo de red de Tor afirma que este es un comportamiento previsto y no una vulnerabilidad."}], "lastModified": "2024-04-11T01:09:29.520", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A433651E-DAE8-44B3-AB2F-069776068357", "versionEndIncluding": "0.4.1.8"}, {"criteria": "cpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2DE290F9-C6B7-4D2C-B7E5-CAB1E9D3A7E6", "versionEndIncluding": "0.4.2.6", "versionStartIncluding": "0.4.2.0"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}