Verification – Verifying the Speech Recognition result and bypassing the ReCaptcha. Recognition – Converting the audio challenge audio and sending it to Google’s Speech Recognition API.Audio Challenge – Getting the correct challenge type.It seems Google is part of the problem itself.Īlso, thanks Josh for mentioning ReBreakCaptcha indirectly! 2017 ReCaptcha Bypassīack in 2017, I posted a method that bypasses Google’s ReCaptcha v2 with 93% success rate – ReBreakCaptcha. It argues that CAPTCHAs are getting harder and harder to solve by humans, but algorithms are getting better at it. We’ll try our best to avoid it and bypass it as well.Ī simple sleep of a few minutes cooldown should suffice.ģ days ago ‘The Verge’ posted an article about CAPTCHAs: Sometimes instead of an audio challenge, an error message is presented as Google has automation detection: Figure 4: Automation Detected Error Then we are presented with an audio challenge that can be easily bypassed: Figure 3: Audio Challenge To get an audio challenge we need to click the following button: Figure 2: The Audio Challenge Button When clicking the “I’m not a robot” checkbox of ReCaptcha v2, we are often presented with the following challenge type: Figure 1: Image Challenge Therefore, we need a methodology of how to get an audio challenge every time. Re-ReBreakCaptcha knows how to solve ReCaptcha v2 audio challenges, using Google’s own services! The user is requested to select those sub-images that best match the given description.Īudio Challenge – The challenge contains an audio recording, The user is requested to enter the words that are heard. Image Challenge – The challenge contains a description and an image which consists of 16 sub-images. There are two types of ReCaptcha v2 challenges: We’ll focus on the first type, as it has all the challenges. V2 has two types: “I’m not a robot” Checkbox, and Invisible reCAPTCHA badge. V3 Is not our focus in this post, as it has no user interaction at all and only results in a score without a CAPTCHA challenge. Many of us know of ReCaptcha, Google’s Human Recognition Program. TL DR A logic vulnerability working 5 years later, dubbed ReBreakCaptcha, which lets you easily bypass Google’s ReCaptcha v2 anywhere on the web.
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