mirror of
https://github.com/carlospolop/hacktricks
synced 2025-02-18 06:58:27 +00:00
55 lines
4.1 KiB
Markdown
55 lines
4.1 KiB
Markdown
# Captcha Bypass
|
||
|
||
<details>
|
||
|
||
<summary><strong>Learn AWS hacking from zero to hero with</strong> <a href="https://training.hacktricks.xyz/courses/arte"><strong>htARTE (HackTricks AWS Red Team Expert)</strong></a><strong>!</strong></summary>
|
||
|
||
Other ways to support HackTricks:
|
||
|
||
* If you want to see your **company advertised in HackTricks** or **download HackTricks in PDF** Check the [**SUBSCRIPTION PLANS**](https://github.com/sponsors/carlospolop)!
|
||
* Get the [**official PEASS & HackTricks swag**](https://peass.creator-spring.com)
|
||
* Discover [**The PEASS Family**](https://opensea.io/collection/the-peass-family), our collection of exclusive [**NFTs**](https://opensea.io/collection/the-peass-family)
|
||
* **Join the** 💬 [**Discord group**](https://discord.gg/hRep4RUj7f) or the [**telegram group**](https://t.me/peass) or **follow** me on **Twitter** 🐦 [**@carlospolopm**](https://twitter.com/carlospolopm)**.**
|
||
* **Share your hacking tricks by submitting PRs to the** [**HackTricks**](https://github.com/carlospolop/hacktricks) and [**HackTricks Cloud**](https://github.com/carlospolop/hacktricks-cloud) github repos.
|
||
|
||
</details>
|
||
|
||
## Captcha Bypass
|
||
|
||
To **automate** the **testing** of some functions of the server that allows user input it **could** be **needed** to **bypass** a **captcha** implementation. Therefore, try to test for these things:
|
||
|
||
* **Do not send the parameter** related to the captcha.
|
||
* Change from POST to GET or other HTTP Verbs
|
||
* Change to JSON or from JSON
|
||
* Send the **captcha parameter empty**.
|
||
* Check if the value of the captcha is **in the source code** of the page.
|
||
* Check if the value is **inside a cookie.**
|
||
* Try to use an **old captcha value**
|
||
* Check if you can use the **same** captcha **value** several times with **the same or different sessionID.**
|
||
* If the captcha consists on a **mathematical operation** try to **automate** the **calculation.**
|
||
* If the captcha consists of **read characters from an image**, check manually or with code **how many images** are being used and if only a **few images are being used, detect them by MD5.**
|
||
* Use an **OCR** ([https://github.com/tesseract-ocr/tesseract](https://github.com/tesseract-ocr/tesseract)).
|
||
|
||
## Online Services to bypass captchas
|
||
|
||
### [Capsolver](https://www.capsolver.com/)
|
||
|
||
Capsolver‘s automatic captcha solver offers the **most affordable and quick captcha-solving solution**. You may rapidly combine it with your program using its simple integration option to achieve the best results in a matter of seconds.
|
||
|
||
With a success rate of 99.15%, Capsolver can **answer more than 10M captchas every minute**. This implies that your automation or scrape will have a 99.99% uptime. You may buy a captcha package if you have a large budget.
|
||
|
||
At the lowest price on the market, you may receive a variety of solutions, including reCAPTCHA V2, reCAPTCHA V3, hCaptcha, hCaptcha Click, reCaptcha click, Funcaptcha Click, FunCaptcha, datadome captcha, aws captcha, picture-to-text, binance / coinmarketcap captcha, geetest v3 / v3, and more. With this service, **0.1s is the slowest speed ever measured**.
|
||
|
||
<details>
|
||
|
||
<summary><strong>Learn AWS hacking from zero to hero with</strong> <a href="https://training.hacktricks.xyz/courses/arte"><strong>htARTE (HackTricks AWS Red Team Expert)</strong></a><strong>!</strong></summary>
|
||
|
||
Other ways to support HackTricks:
|
||
|
||
* If you want to see your **company advertised in HackTricks** or **download HackTricks in PDF** Check the [**SUBSCRIPTION PLANS**](https://github.com/sponsors/carlospolop)!
|
||
* Get the [**official PEASS & HackTricks swag**](https://peass.creator-spring.com)
|
||
* Discover [**The PEASS Family**](https://opensea.io/collection/the-peass-family), our collection of exclusive [**NFTs**](https://opensea.io/collection/the-peass-family)
|
||
* **Join the** 💬 [**Discord group**](https://discord.gg/hRep4RUj7f) or the [**telegram group**](https://t.me/peass) or **follow** me on **Twitter** 🐦 [**@carlospolopm**](https://twitter.com/carlospolopm)**.**
|
||
* **Share your hacking tricks by submitting PRs to the** [**HackTricks**](https://github.com/carlospolop/hacktricks) and [**HackTricks Cloud**](https://github.com/carlospolop/hacktricks-cloud) github repos.
|
||
|
||
</details>
|