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Vulnerability Assessment & Network Security Forums |
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If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important. If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery. Home >> Browse Vulnerability Assessment Database >> Gain root remotely >> OpenSSH < 2.1.1 UseLogin feature Vulnerability Assessment Details
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OpenSSH < 2.1.1 UseLogin feature |
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Checks for the remote OpenSSH version Detailed Explanation for this Vulnerability Assessment You are running a version of OpenSSH which is older than 2.1.1. If the UseLogin option is enabled, then sshd does not switch to the uid of the user logging in. Instead, sshd relies on login(1) to do the job. However, if the user specifies a command for remote execution, login(1) cannot be used and sshd fails to set the correct user id, so the command is run with the same privilege as sshd (usually root rights). *** Note that Nessus did not acertain whether the UseLogin *** option was activated or not, so this message may *** be a false alarm Solution : Upgrade to OpenSSH 2.1.1 or make sure that the option UseLogin is set to no in sshd_config Network Security Threat Level: High Networks Security ID: 1334 Vulnerability Assessment Copyright: This script is Copyright (C) 2000 Renaud Deraison |
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Security, Firewall, VPN |
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