FreeBSD : tor -- traffic confirmation attack (31c09848-1829-11e4-bf04-60a44c524f57)

medium Nessus Plugin ID 76922

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Synopsis

The remote FreeBSD host is missing one or more security-related updates.

Description

The Tor Project reports :

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.

Solution

Update the affected packages.

Plugin Details

Severity: Medium

ID: 76922

File Name: freebsd_pkg_31c09848182911e4bf0460a44c524f57.nasl

Version: 1.6

Type: local

Family: FreeBSD Local Security Checks

Published: 7/31/2014

Updated: 1/6/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.2

CVSS v2

Risk Factor: Medium

Base Score: 5.8

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:N

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:tor, p-cpe:/a:freebsd:freebsd:tor-devel, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Patch Publication Date: 7/30/2014

Vulnerability Publication Date: 7/30/2014

Reference Information

CVE: CVE-2014-5117

Detections

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