module

Apache mod_cgi Bash Environment Variable Code Injection (Shellshock)

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

Description

This module exploits 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.

Authors

Stephane Chazelas
wvu wvu@metasploit.com
juan vazquez juan.vazquez@metasploit.com
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 exploit/multi/http/apache_mod_cgi_bash_env_exec
    msf exploit(apache_mod_cgi_bash_env_exec) > show targets
        ...targets...
    msf exploit(apache_mod_cgi_bash_env_exec) > set TARGET < target-id >
    msf exploit(apache_mod_cgi_bash_env_exec) > show options
        ...show and set options...
    msf exploit(apache_mod_cgi_bash_env_exec) > exploit
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