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    Obscure Bug Could Disable the %p%s%s%s%s%n Wi-Fi on Your iPhone or iPad

   Josh Centers

   [1]9to5Mac reports on a Wi-Fi bug discovered by Carl Schou: if you join
   a Wi-Fi network named '%p%s%s%s%s%n' from an iPhone or iPad, it will
   break both Wi-Fi and AirDrop. Even worse, restarting the device won't
   fix it. You'll have to reset your network settings by going to Settings
   > General > Reset > Reset Network Settings.

   The root cause seems to be Apple failing to sanitize Wi-Fi network
   names. Those characters preceded by percent signs are commonly used in
   programming to format variables into an output string. It's likely that
   the name gets directly passed into Apple's code, causing a process
   crash.

   We haven't seen reports of Wi-Fi networks with this name in the wild
   yet, but now that the word is out, you can bet that some merry
   pranksters will take advantage of it. To play it safe, avoid joining
   any Wi-Fi network with a percent sign in its name.

   [2]Read original article

References

   1. https://9to5mac.com/2021/06/19/a-specific-network-name-can-completely-disable-wi-fi-on-your-iphone/
   2. https://9to5mac.com/2021/06/19/a-specific-network-name-can-completely-disable-wi-fi-on-your-iphone/

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