OPEN REDIRECT VULNERABILITIES: ESCALATING TO XSS
This article was originally published at BePractical
A lot of bug bounty hunters usually just reports the vulnerability that they found directly to the program without understanding the impact of it. Although this is completely fine, but sometimes it restricts you to get the bounty you deserve. For example, If you have identified open redirect vulnerabilities in a web application and you report it directly then you will get around a minimum of $100. That’s great, but what if i told you that you can get 5 times more bounty of the same vulnerability? Well, it can actually happen if you know the impact. If you have found open redirection vulnerability in OAuth functionality then you may even get around $1000! Therefore, it is very important for bug hunters to identify the impact of vulnerabilities that they have found. To increase the impact of any vulnerability, Escalation plays an important role. For example, open redirect vulnerabilities escalated to cross site scripting can give you much more bounty compared to open redirection alone.
Hey everyone, In the last article, we have discussed about open redirect vulnerabilities and how to find them in depth. Now, Let’s discuss how we can escalate open redirection into cross site scripting vulnerability to increase the security impact and increase overall bounty on the program.
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WHAT IS OPEN REDIRECT VULNERABILITIES?
In simple terms, It is a vulnerability that allows an attacker to redirect users to their websites. Attackers usually perform phishing attacks via open redirection. You can read more about it here
HOW TO ESCALATE OPEN REDIRECT TO XSS?
To escalate open redirection into cross site scripting, follow these simple steps:
Identify: Identify the parameter responsible for redirection. After that, Make sure to confirm that you are able to perform open redirection vulnerability.
Verify: After that, confirm whether you are able to see 1 getting popped up. If yes, then you just escalated your privilege to cross site scripting.
Video Demonstration of Open Redirect Vulnerabilities:
I hope you understood how to escalate open redirection into cross site scripting vulnerability. Please note that the method described above may not work in certain web application that are more secure. In that case, you have to identify where you have found open redirection. If there is open redirection vulnerability in login functionality then you may not get that much bounty but if you have identified the same on some Oauth functionality where you can steal sensitive tokens of authentication then your bounty will automatically get increased.
Please understand that the more you analyse the application, the more you will be able to break into it. With that said, If you have any doubts or issues related to bug bounties then feel free to comment down below.
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OPEN REDIRECTION TO XSS REPORTS
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