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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 >> Ubuntu Local Security Checks >> USN34-1 : openssh information leakage Vulnerability Assessment Details
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USN34-1 : openssh information leakage |
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openssh information leakage Detailed Explanation for this Vulnerability Assessment Summary : These remote packages are missing security patches : - openssh-client - openssh-server - ssh - ssh-askpass-gnome Description : @Mediaservice.net discovered two information leaks in the OpenSSH server. When using password authentication, a possible hacker could test whether a login name exists by measuring the time between failed login attempts, i. e. the time after which the "password:" prompt appears again. A similar issue affects systems which do not permit root logins over ssh ("PermitRootLogin no"). By measuring the time between login attempts a possible hacker could check whether a given root password is correct. This permited determining weak root passwords using a brute force attack. Solution : Upgrade to : - openssh-client-3.8.1p1-11ubuntu3.1 (Ubuntu 4.10) - openssh-server-3.8.1p1-11ubuntu3.1 (Ubuntu 4.10) - ssh-3.8.1p1-11ubuntu3.1 (Ubuntu 4.10) - ssh-askpass-gnome-3.8.1p1-11ubuntu3.1 (Ubuntu 4.10) Network Security Threat Level: High Networks Security ID: Vulnerability Assessment Copyright: Ubuntu Security Notice (C) 2005 Canonical, Inc. / NASL script (C) 2005 Michel Arboi |
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