CVE-2021-39246

Опубликовано: 24 сент. 2021

Источник: nvd

CVSS3: 6.1

CVSS2: 3.6

EPSS Низкий

Описание

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).

Ссылки

https://github.com/sickcodes/security/blob/master/advisories/SICK-2021-111.md
Exploit
Third Party Advisory
https://gitlab.torproject.org/tpo/core/tor/-/commit/80c404c4b79f3bcba3fc4585d4c62a62a04f3ed9
Patch
Vendor Advisory
https://gitlab.torproject.org/tpo/core/tor/-/merge_requests/434
Vendor Advisory
https://sick.codes/sick-2021-111
Exploit
Third Party Advisory
https://www.privacyaffairs.com/cve-2021-39246-tor-vulnerability
Third Party Advisory
https://github.com/sickcodes/security/blob/master/advisories/SICK-2021-111.md
Exploit
Third Party Advisory
https://gitlab.torproject.org/tpo/core/tor/-/commit/80c404c4b79f3bcba3fc4585d4c62a62a04f3ed9
Patch
Vendor Advisory
https://gitlab.torproject.org/tpo/core/tor/-/merge_requests/434
Vendor Advisory
https://sick.codes/sick-2021-111
Exploit
Third Party Advisory
https://www.privacyaffairs.com/cve-2021-39246-tor-vulnerability
Third Party Advisory

Уязвимые конфигурации

Конфигурация 1

Одновременно

Одно из

cpe:2.3:a:torproject:tor_browser:*:*:*:*:*:*:*:*

Версия до 10.5.6 (включая)

cpe:2.3:a:torproject:tor_browser:11.0:alpha2:*:*:*:*:*:*

cpe:2.3:a:torproject:tor_browser:11.0:alpha4:*:*:*:*:*:*

Одно из

cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*

cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*

cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*

EPSS

Процентиль: 29%

0.00108

Низкий

6.1 Medium

CVSS3

3.6 Low

CVSS2

Дефекты

CWE-532

Связанные уязвимости

GHSA-mqmf-5457-4f39

github

больше 3 лет назад

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. If --log or --verbose is used, 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).