ip and submit which we’ll further pass it with commix tool.īack to attacker machine i.e. So in this case, there are two POST parameters i.e. Next step is to capture all the POST parameters so that we can pass it along with Cookie value in Commix tool.īelow we are going to do a simply ping test using the web interface through which you can easily see all the POST parameters under Network Tab or you can find all these information with the help of Burp Suite too by intercepting the POST request. The purpose of the command injection attack is to inject and execute commands specified by the attacker in the vulnerable application. So in our case, the cookie ID values are: Next, you need to copy all the cookie ID values ( security,PHPSESSID) so that from the browser by pressing F12 in order to run COMMIX tool successfully. Note: Make sure that the security should set to low so that everything works smoothly.īy using this Damn Vulnerable Web Application (DVWA), it is very easy to find and exploit a command injection vulnerability in a certain vulnerable parameter or string. In first step, log into your DVWA web application with default credentials and navigate to Command Execution page as shown below: Suggested Read: From RFI To Meterpreter Shell To demonstrate this attack, we’re using DVWA which is one of the most popular vulnerable web application. The aim of DVWA is to practice some of the most common web vulnerabilities, with various levels of difficulty, with a simple straightforward interface. Command injection attacks are possible when an application passes unsafe user supplied data (forms, cookies, HTTP headers etc.) to a system shell. Command injection is an attack in which the goal is execution of arbitrary commands on the host operating system via a vulnerable application.
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