From 4436a86be02c54ea2ca4dab6cf51af3e8b11c35b Mon Sep 17 00:00:00 2001
From: Mehdi <pentest.co@gmail.com>
Date: Mon, 18 Sep 2023 12:10:21 +0330
Subject: [PATCH] Create Rate Limit Bypass.md

---
 Rate Limit Bypass.md | 137 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 137 insertions(+)
 create mode 100644 Rate Limit Bypass.md

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+# Rate Limit Bypass
+## Using similar endpoints
+* If you are attacking the `/api/v3/sign-up` endpoint try to perform bruteforce to `/Sing-up`, `/SignUp`, `/singup`...
+* Also try appending to the original endpoint bytes like `%00`, `%0d%0a`, `%0d`, `%0a`, `%09`, `%0C`, `%20`
+
+## Blank chars in code/params
+Try adding some blank byte like:
+* `%00`
+* `%0d%0a`
+* `%0d`
+* `%0a`
+* `%09`
+* `%0C`
+* `%20`
+
+to the code and/or params.
+
+For example `code=1234%0a` or if you are requesting a code for an email and you only have 5 tries, use the 5 tries for `example@email.com`, then for `example@email.com%0a`, then for `example@email.com%0a%0a`, and continue...
+
+## Changing IP origin using headers
+```bash
+X-Originating-IP: 127.0.0.1
+X-Forwarded-For: 127.0.0.1
+X-Remote-IP: 127.0.0.1
+X-Remote-Addr: 127.0.0.1
+X-Client-IP: 127.0.0.1
+X-Host: 127.0.0.1
+X-Forwared-Host: 127.0.0.1
+
+
+# OR use double X-Forwared-For header
+X-Forwarded-For:
+X-Forwarded-For: 127.0.0.1
+```
+> If they are limiting to 10 tries per IP, every 10 tries change the IP inside the header.
+
+## Change other headers
+Try changing the `user-agent`, the `cookies`... anything that could be able to identify you.
+
+## Adding extra params to the path
+If the limit in the path `/resetpwd`, try BFing that path, and once the rate limit is reached try `/resetpwd?someparam=1`
+
+## Login in your account before each attempt
+Maybe if you login into your account before each attempt (or each set of X tries), the rate limit is restarted. If you are attacking a login functionality, you can do this in burp using a Pitchfork attack in setting your credentials every X tries (and marking follow redirects).
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