National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2014-5117 Detail

Description

Tor before 0.2.4.23 and 0.2.5 before 0.2.5.6-alpha maintains a circuit after an inbound RELAY_EARLY cell is received by a client, which makes it easier for remote attackers to conduct traffic-confirmation attacks by using the pattern of RELAY and RELAY_EARLY cells as a means of communicating information about hidden service names.

Source:  MITRE
Description Last Modified:  07/30/2014

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://secunia.com/advisories/60084
http://secunia.com/advisories/60647
https://blog.torproject.org/blog/tor-security-advisory-relay-early-traffic-confirmation-attack
https://lists.torproject.org/pipermail/tor-announce/2014-July/000093.html
https://lists.torproject.org/pipermail/tor-announce/2014-July/000094.html Vendor Advisory
https://lists.torproject.org/pipermail/tor-talk/2014-July/034180.html
https://trac.torproject.org/projects/tor/ticket/1038

Technical Details

Vulnerability Type (View All)

Vulnerable software and versions Switch to CPE 2.2

Configuration 1
OR
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Showing 100 of 124 CPEs, view all CPEs here.

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Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2014-5117
NVD Published Date:
07/30/2014
NVD Last Modified:
01/06/2017