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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 >> SMTP problems >> Sendmail ETRN command DOS

Vulnerability Assessment Details

Sendmail ETRN command DOS

Vulnerability Assessment Summary
Checks the version number

Detailed Explanation for this Vulnerability Assessment

The remote sendmail server, according to its version number,
permits remote attackers to cause a denial of service by
sending a series of ETRN commands then disconnecting from
the server, while Sendmail continues to process the commands
after the connection has been terminated.

Solution : Install sendmail version 8.10.1 and higher, or
install a vendor supplied patch.

Network Security Threat Level: Medium

Networks Security ID: 904

Vulnerability Assessment Copyright: This script is Copyright (C) 2003 Xue Yong Zhi

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