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

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CVE-2009-0654

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
20/02/2009
Last modified:
09/04/2025

Description

Tor 0.2.0.28, and probably 0.2.0.34 and earlier, allows remote attackers, with control of an entry router and an exit router, to confirm that a sender and receiver are communicating via vectors involving (1) replaying, (2) modifying, (3) inserting, or (4) deleting a single cell, and then observing cell recognition errors at the exit router. NOTE: the vendor disputes the significance of this issue, noting that the product's design "accepted end-to-end correlation as an attack that is too expensive to solve."

Impact

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

Base Score: 5.10 MEDIUM
Vector: AV:N/AC:H/Au:N/C:P/I:P/A:P

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

Base Score 2.0
5.10
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:tor:tor:*:alpha:*:*:*:*:*:* 0.2.0.34 (including)
cpe:2.3:a:tor:tor:0.2.0.1:alpha:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.2.0.2:alpha:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.2.0.3:alpha:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.2.0.4:alpha:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.2.0.5:alpha:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.2.0.6:alpha:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.2.0.7:alpha:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.2.0.8:alpha:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.2.0.9:alpha:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.2.0.10:alpha:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.2.0.11:alpha:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.2.0.12:alpha:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.2.0.13:alpha:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.2.0.14:alpha:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools