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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 >> Denial of Service >> MDaemon DoS Vulnerability Assessment Details
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MDaemon DoS |
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Crashes the remote MTA Detailed Explanation for this Vulnerability Assessment It was possible to crash the remote SMTP server by opening a great amount of sockets on it. This problem permits a possible hacker to make your SMTP server crash, thus preventing you from sending or receiving e-mails, which will affect your work. *** Note that due to the nature of this vulnerability, *** Nessus can not be 100% positive on the effectiveness of *** this flaw. As a result, this report might be a false positive Solution : If your SMTP server is constrained to a maximum number of processes, i.e. it's not running as root and as a ulimit 'max user processes' of 256, you may consider upping the limit with 'ulimit -u'. If your server has the ability to protect itself from SYN floods, you should turn on that features, i.e. Linux's CONFIG_SYN_COOKIES The best solution may be Cisco's 'TCP intercept' feature. Network Security Threat Level: High Networks Security ID: 8554 Vulnerability Assessment Copyright: This script is Copyright (C) 1999 Renaud Deraison |
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