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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

Shells in /cgi-bin

Vulnerability Assessment Summary
Searches for the existence of various shells in /cgi-bin

Detailed Explanation for this Vulnerability Assessment

The remote web server has one of these shells installed
in /cgi-bin :
ash, bash, csh, ksh, sh, tcsh, zsh

Leaving executable shells in the cgi-bin directory of
a web server may permit a possible hacker to execute arbitrary
commands on the target machine with the rights of the
http daemon (usually root or nobody).

Solution : Remove all the shells from /cgi-bin.

Network Security Threat Level: High

Networks Security ID:

Vulnerability Assessment Copyright: This script is Copyright (C) 1999 Renaud Deraison

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