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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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Vulnerability Assessment Details

OpenSSL password interception

Vulnerability Assessment Summary
Checks for version of OpenSSL

Detailed Explanation for this Vulnerability Assessment

The remote host is using a version of OpenSSL which is
older than 0.9.6j or 0.9.7b

This version is vulnerable to a timing based attack which may
permit a possible hacker to guess the content of fixed data blocks and
may eventually be able to guess the value of the private RSA key
of the server.

A possible hacker may use this implementation flaw to sniff the
data going to this host and decrypt some parts of it, as well
as impersonate your server and perform man in the middle attacks.

*** Nessus solely relied on the banner of the remote host
*** to issue this warning

See also : http://www.openssl.org/news/secadv_20030219.txt
http://lasecwww.epfl.ch/memo_ssl.shtml
http://eprint.iacr.org/2003/052/

Solution : Upgrade to version 0.9.6j (0.9.7b) or newer
Network Security Threat Level: Medium

Networks Security ID: 6884, 7148

Vulnerability Assessment Copyright: This script is Copyright (C) 2003 Renaud Deraison

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