gsd-2021-39246
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
Tor Browser through 10.5.6 and 11.x through 11.0a4 allows a correlation attack that can compromise the privacy of visits to v2 onion addresses. Exact timestamps of these onion-service visits are logged locally, and an attacker might be able to compare them to timestamp data collected by the destination server (or collected by a rogue site within the Tor network).
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2021-39246",
"description": "Tor Browser through 10.5.6 and 11.x through 11.0a4 allows a correlation attack that can compromise the privacy of visits to v2 onion addresses. Exact timestamps of these onion-service visits are logged locally, and an attacker might be able to compare them to timestamp data collected by the destination server (or collected by a rogue site within the Tor network).",
"id": "GSD-2021-39246",
"references": [
"https://www.suse.com/security/cve/CVE-2021-39246.html"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2021-39246"
],
"details": "Tor Browser through 10.5.6 and 11.x through 11.0a4 allows a correlation attack that can compromise the privacy of visits to v2 onion addresses. Exact timestamps of these onion-service visits are logged locally, and an attacker might be able to compare them to timestamp data collected by the destination server (or collected by a rogue site within the Tor network).",
"id": "GSD-2021-39246",
"modified": "2023-12-13T01:23:15.250201Z",
"schema_version": "1.4.0"
}
},
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"affects": {
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"product_data": [
{
"product_name": "n/a",
"version": {
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"version_value": "n/a"
}
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}
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"value": "Tor Browser through 10.5.6 and 11.x through 11.0a4 allows a correlation attack that can compromise the privacy of visits to v2 onion addresses. Exact timestamps of these onion-service visits are logged locally, and an attacker might be able to compare them to timestamp data collected by the destination server (or collected by a rogue site within the Tor network)."
}
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"name": "https://github.com/sickcodes/security/blob/master/advisories/SICK-2021-111.md",
"refsource": "MISC",
"url": "https://github.com/sickcodes/security/blob/master/advisories/SICK-2021-111.md"
},
{
"name": "https://sick.codes/sick-2021-111",
"refsource": "MISC",
"url": "https://sick.codes/sick-2021-111"
},
{
"name": "https://www.privacyaffairs.com/cve-2021-39246-tor-vulnerability",
"refsource": "MISC",
"url": "https://www.privacyaffairs.com/cve-2021-39246-tor-vulnerability"
},
{
"name": "https://gitlab.torproject.org/tpo/core/tor/-/commit/80c404c4b79f3bcba3fc4585d4c62a62a04f3ed9",
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"url": "https://gitlab.torproject.org/tpo/core/tor/-/commit/80c404c4b79f3bcba3fc4585d4c62a62a04f3ed9"
},
{
"name": "https://gitlab.torproject.org/tpo/core/tor/-/merge_requests/434",
"refsource": "MISC",
"url": "https://gitlab.torproject.org/tpo/core/tor/-/merge_requests/434"
}
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}
},
"nvd.nist.gov": {
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"nodes": [
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"versionEndIncluding": "10.5.6",
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{
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"cpe23Uri": "cpe:2.3:a:torproject:tor_browser:11.0:alpha4:*:*:*:*:*:*",
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}
]
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"references": {
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{
"name": "https://www.privacyaffairs.com/cve-2021-39246-tor-vulnerability",
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"Third Party Advisory"
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"url": "https://www.privacyaffairs.com/cve-2021-39246-tor-vulnerability"
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"url": "https://github.com/sickcodes/security/blob/master/advisories/SICK-2021-111.md"
}
]
}
},
"impact": {
"baseMetricV2": {
"acInsufInfo": false,
"cvssV2": {
"accessComplexity": "LOW",
"accessVector": "LOCAL",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 3.6,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:N",
"version": "2.0"
},
"exploitabilityScore": 3.9,
"impactScore": 4.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "LOW",
"userInteractionRequired": false
},
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "LOW",
"attackVector": "PHYSICAL",
"availabilityImpact": "NONE",
"baseScore": 6.1,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
"version": "3.1"
},
"exploitabilityScore": 0.9,
"impactScore": 5.2
}
},
"lastModifiedDate": "2021-10-01T13:00Z",
"publishedDate": "2021-09-24T19:15Z"
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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