National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2011-2768 Detail

Description

Tor before 0.2.2.34, when configured as a client or bridge, sends a TLS certificate chain as part of an outgoing OR connection, which allows remote relays to bypass intended anonymity properties by reading this chain and then determining the set of entry guards that the client or bridge had selected.

Source:  MITRE
Description Last Modified:  12/22/2011

Impact

CVSS v2.0 Severity and Metrics:

Base Score: 5.8 MEDIUM
Vector: (AV:N/AC:M/Au:N/C:P/I:P/A:N) (V2 legend)
Impact Subscore: 4.9
Exploitability Subscore: 8.6


Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): Partial
Availability (A): None
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.debian.org/security/2011/dsa-2331
https://blog.torproject.org/blog/tor-02234-released-security-patches Patch Vendor Advisory

Technical Details

Vulnerability Type (View All)

  • Permissions, Privileges, and Access Control (CWE-264)

Vulnerable software and versions Switch to CPE 2.2

Configuration 1
OR
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:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.0.9.1:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.0.9.2:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.0.9.3:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.0.9.4:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.0.9.5:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.0.9.6:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.0.9.7:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.0.9.8:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.0.9.9:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.0.9.10:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.0.1:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.0.2:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.0.3:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.0.4:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.0.5:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.0.6:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.0.7:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.0.8:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.0.9:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.0.10:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.0.11:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.0.12:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.0.13:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.0.14:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.0.15:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.0.16:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.0.17:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.0.18:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.0.19:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.1:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.1.1:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.1.1:alpha:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.1.2:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.1.2:alpha:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.1.3:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.1.3:alpha:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.1.4:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.1.4:alpha:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.1.5:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.1.5:alpha:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.1.6:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.1.6:alpha:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.1.7:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.1.7:alpha:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.1.8:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.1.8:alpha:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.1.9:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.1.9:alpha:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.1.10:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.1.10:alpha:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.1.11:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.1.12:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.1.13:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.1.14:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.1.15:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.1.16:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.1.17:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.1.18:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.1.19:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.1.20:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.1.21:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.1.22:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.1.23:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.1.25:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.1.26:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.2.1:alpha:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.2.1:alpha-cvs:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.2.2:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.2.3:alpha:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.2.4:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.2.5:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.2.5:alpha:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.2.6:alpha:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.2.7:alpha:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.2.8:beta:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.2.9:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.2.10:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.2.11:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.2.12:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.2.13:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.2.14:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.2.15:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.2.16:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.2.17:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.2.18:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.2.19:*:*:*:*:*:*:*
cpe:2.3:a:tor:tor:0.1.2.30:*:*:*:*:*:*:*
Showing 100 of 229 CPEs, view all CPEs here.

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Change History

1 change record found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2011-2768
NVD Published Date:
12/22/2011
NVD Last Modified:
01/18/2012