I think I found a new exploit to enter guest mode on a chromebook that has it blocked.

[no-name-6655]

As the title says I think I found one. The only requirement is a WiFi network with a captive login portal. I don't know if this is the right place to share it or is there someone I message? I am not very familiar with GitHub.
Also, the exploit is useful because entering guest mode removes all extensions and policies, so no site blocking and you can easily get around network filters with the network settings. But you cannot download extensions, use any bookmarks, or download any apps.

[Balistic123]

can you provide?

[no-name-6655]

Step 1: Powerwash the chromebook
Step 2: During setup select a wifi network that opens a captive portal
Step 3: The chromebook usually gets stuck on a loading screen for a few seconds up to 5 mins. Just wait
Step 4: Wait for a captive portal popup that has a URL bar at the top. It has to be the one with the URL bar.
Step 5: Click the URL once to highlight it, then right click it once. This should make the screen turn black for a few seconds (I have no idea why?)
Step 6: Close the portal and on the network list there should be a little link that will open guest mode

If publishing makes it so that google will patch this (do they watch this repo?). then I ask that you don't publish it.
Works on all versions I'm mostly certain

[Sam-hacks1]

ima try it

[Sam-hacks1]

it works but you can't easily go back

[Ryler4]

smart :)