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CVE-2021-39246

Published: Sep 24, 2021Updated: Nov 21, 2024 Sources: CVE List NVDCWE-532
6.1MEDIUM
NVD MITRE
EPSS Score
0.5%
Top 63.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

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).

No summary for this CVE yet.

CVSS Vector Breakdown

AV:PAC:LPR:NUI:NS:UC:HI:HA:N
Exploitability
AV:PAttack Vector
Physical
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:NAvailability
None
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Weaknesses

CWE-532

Affected Products

torproject
oss-project·USaka tor
tor browserMixed
Security Products / secure-gateway-vpn
and 1 more affected products View all →

Exploitability

Official Patch Available

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

1 technique
Credential Access
View detailed technique mapping

References

https://github.com/sickcodes/security/blob/master/advisories/SICK-2021-111.md
github.com
https://sick.codes/sick-2021-111
sick.codes
https://www.privacyaffairs.com/cve-2021-39246-tor-vulnerability
privacyaffairs.com
and 2 more references View all →
News mentions
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