CVE-2020-8516

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://www.hackerfactor.com/blog/index.php?/archives/868-Deanonymizing-Tor-Circuits.html", "name": "https://www.hackerfactor.com/blog/index.php?/archives/868-Deanonymizing-Tor-Circuits.html", "tags": ["Exploit", "Mitigation", "Technical Description", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://lists.torproject.org/pipermail/tor-dev/2020-February/014147.html", "name": "https://lists.torproject.org/pipermail/tor-dev/2020-February/014147.html", "tags": ["Mailing List", "Vendor Advisory"], "refsource": "MISC"}, {"url": "https://security-tracker.debian.org/tracker/CVE-2020-8516", "name": "https://security-tracker.debian.org/tracker/CVE-2020-8516", "tags": ["Third Party Advisory"], "refsource": "MISC"}, {"url": "https://lists.torproject.org/pipermail/tor-dev/2020-February/014146.html", "name": "https://lists.torproject.org/pipermail/tor-dev/2020-February/014146.html", "tags": ["Mailing List", "Vendor Advisory"], "refsource": "MISC"}, {"url": "https://trac.torproject.org/projects/tor/ticket/33129", "name": "https://trac.torproject.org/projects/tor/ticket/33129", "tags": ["Issue Tracking", "Vendor Advisory"], "refsource": "MISC"}]}, "data_format": "MITRE", "description": {"description_data": [{"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"}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2020-8516", "ASSIGNER": "cve@mitre.org"}}, "impact": {"baseMetricV2": {"cvssV2": {"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"}, "severity": "MEDIUM", "acInsufInfo": false, "impactScore": 2.9, "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"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}}, "publishedDate": "2020-02-02T13:15Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndIncluding": "0.4.2.6", "versionStartIncluding": "0.4.2.0"}, {"cpe23Uri": "cpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndIncluding": "0.4.1.8"}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2024-08-04T10:15Z"}