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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.

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Portable OpenSSH PAM timing attack

Vulnerability Assessment Summary Checks the timing of the remote SSH server Detailed Explanation for this Vulnerability Assessment The remote host seem to be running an SSH server which can permit a possible hacker to acertain the existence of a given login by comparing the time the remote sshd daemon takes to refuse a bad password for a non-existent login compared to the time it takes to refuse a bad password for a valid login. A possible hacker may use this flaw to set up a brute force attack against the remote host. Solution : Disable PAM support if you do not use it, upgrade to the newest version of OpenSSH Network Security Threat Level: Low Networks Security ID: 7342, 7467, 7482, 11781 Vulnerability Assessment Copyright: This script is Copyright (C) 2004-2006 Tenable Network Security

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