Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2011-4897

Severity CVSS v4.0:
Pending analysis
Type:
CWE-200 Information Leak / Disclosure
Publication date:
23/12/2011
Last modified:
11/04/2025

Description

Tor before 0.2.2.25-alpha, when configured as a relay without the Nickname configuration option, uses the local hostname as the Nickname value, which allows remote attackers to obtain potentially sensitive information by reading this value.

Impact

Vector 2.0
AV:N/AC:M/Au:N/C:P/I:N/A:N CVSS v2.0 Severity and Metrics:

Base Score: 4.30 MEDIUM
Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): None
Availability (A): None

Base Score 2.0
4.30
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:tor:tor:*:alpha:*:*:*:*:*:* 0.2.2.24 (including)
cpe:2.3:a:tor:tor:0.0.2:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.0.3:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.0.4:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.0.5:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.0.6:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.0.6.1:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.0.6.2:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.0.7:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.0.7.1:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.0.7.2:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.0.7.3:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.0.8:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.0.8.1:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.0.9:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools