module

Apache mod_cgi Bash Environment Variable Injection (Shellshock) Scanner

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Disclosed
09/24/2014
Created
05/30/2018

Description

This module scans for the Shellshock vulnerability, a flaw in how the Bash shell
handles external environment variables. This module targets CGI scripts in the
Apache web server by setting the HTTP_USER_AGENT environment variable to a
malicious function definition.

PROTIP: Use exploit/multi/handler with a PAYLOAD appropriate to your
CMD, set ExitOnSession false, run -j, and then run this module to create
sessions on vulnerable hosts.

Note that this is not the recommended method for obtaining shells.
If you require sessions, please use the apache_mod_cgi_bash_env_exec
exploit module instead.

Authors

Stephane Chazelaswvu lcamtuf

References

Module Options

To display the available options, load the module within the Metasploit console and run the commands ‘show options’ or ‘show advanced’:

    msf > use auxiliary/scanner/http/apache_mod_cgi_bash_env
    msf /(v) > show actions
        ...actions...
    msf /(v) > set ACTION < action-name >
    msf /(v) > show options
        ...show and set options...
    msf /(v) > run
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