Tor before 0.2.2.34, when configured as a bridge, uses direct DirPort access instead of a Tor TLS connection for a directory fetch, which makes it easier for remote attackers to enumerate bridges by observing DirPort connections.
Published 2011-12-23 03:59:22
Updated 2011-12-23 05:00:00
Source MITRE
View at NVD,   CVE.org
Vulnerability category: Information leak

Exploit prediction scoring system (EPSS) score for CVE-2011-4894

Probability of exploitation activity in the next 30 days: 0.18%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 54 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2011-4894

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source
4.3
MEDIUM AV:N/AC:M/Au:N/C:P/I:N/A:N
8.6
2.9
NIST

CWE ids for CVE-2011-4894

References for CVE-2011-4894

Products affected by CVE-2011-4894

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