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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 >> Gentoo Local Security Checks >> [GLSA-200408-04] PuTTY: Pre-authentication arbitrary code execution Vulnerability Assessment Details
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[GLSA-200408-04] PuTTY: Pre-authentication arbitrary code execution |
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PuTTY: Pre-authentication arbitrary code execution Detailed Explanation for this Vulnerability Assessment The remote host is affected by the vulnerability described in GLSA-200408-04 (PuTTY: Pre-authentication arbitrary code execution) PuTTY contains a vulnerability permiting a malicious server to execute arbitrary code on the connecting client before host key verification. Impact When connecting to a server using the SSH2 protocol a possible hacker is able to execute arbitrary code with the permissions of the user running PuTTY by sending specially crafted packets to the client during the authentication process but before host key verification. Workaround There is no known workaround at this time. All users are encouraged to upgrade to the latest available version of PuTTY. References: http://www.coresecurity.com/common/showdoc.php?idx=417&idxseccion=10 http://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html Solution: All PuTTY users should upgrade to the latest version: # emerge sync # emerge -pv ">=net-misc/putty-0.55" # emerge ">=net-misc/putty-0.55" Network Security Threat Level: Medium Networks Security ID: Vulnerability Assessment Copyright: (C) 2005 Michel Arboi |
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