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Home >> Browse Vulnerability Assessment Database >> Gain a shell remotely >> OpenSSH Client Unauthorized Remote Forwarding


Vulnerability Assessment Details

OpenSSH Client Unauthorized Remote Forwarding

Vulnerability Assessment Summary
Checks for the remote SSH version

Detailed Explanation for this Vulnerability Assessment

Summary :

The remote SSH client does not disable X11 forwarding.

Description :

The remote host is running a version of the OpenSSH client older than or
as old as version 2.3.0.

This version does not properly disable X11 or agent forwarding,
which could permit a malicious SSH server to gain access to the X11
display and sniff X11 events, or gain access to the ssh-agent.

Solution :

Install the newest version of OpenSSH, available at http://www.openssh.com

Network Security Threat Level:

Low / CVSS Base Score : 3
(AV:R/AC:H/Au:NR/C:P/A:N/I:N/B:C)

Networks Security ID: 1949

Vulnerability Assessment Copyright: This script is Copyright (C) 2003 Xue Yong Zhi

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