iPhone hotspot vulnerability breaks your potential to make use of Wi-Fi

An illustration showing iPhone hotspot being connected to via Mac

An iPhone hotspot vulnerability that Apple hasn’t fastened but breaks your potential to hook up with wi-fi networks, requiring a manufacturing facility reset to revive Wi-Fi performance.


  • Sure malformed hotspot names can break iPhone’s Wi-Fi
  • A community settings reset restores Wi-Fi connectivity
  • Apple has but to repair this bug in iOS and iPadOS
  • Android isn’t hit by the identical downside

Why some hotspot names break iPhone’s Wi-Fi

As found by safety researcher Carl Schou, iOS and iPadOS seem to endure from an odd wi-fi community naming difficulty which might disable your potential to hook up with Wi-Fi networks to the purpose the place a community settings reset is the one method to re-enable Wi-Fi performance.

After becoming a member of my private WiFi with the SSID “%ppercentspercentspercentspercentspercentn”, my iPhone completely disabled it’s WiFi performance. Neither rebooting nor altering SSID fixes it :~) https://t.co/2eue90JFu3

For that cause, iDB advises towards connecting to unfamiliar wi-fi entry factors that carry uncommon symbols of their title, like the share signal adopted by the characters S and P.

BleepingComputer has found that altering a hotspot’s SSID doesn’t repair the problem.

As talked about, the one method to re-enable Wi-Fi performance after encountering this bug entails resetting your community settings (which can erase passwords for all saved Wi-Fi networks on the machine) by selecting Settings → Normal → Reset → Reset Community Settings.

Apple didn’t repair the problem on the time of writing.

You possibly can completely disable any iOS machine’s WiFI by internet hosting a public WiFi named %secretclubpercentpower
Resetting community settings shouldn’t be assured to revive performance.
#infosec #0day

In a single case involving a malformed SSID, resetting community settings wouldn’t re-enable Wi-Fi. In accordance with Schou, he needed to edit an iPhone backup file and take away any malicious entries from the identified networks checklist to revive Wi-Fi performance.

Because of @pieceofsummer and @wr3nchsr I now have WiFi once more. To revive WiFi performance, you must manually edit an iPhone backup and take away malicious entries from the identified networks .plist

As is its wont, Apple hasn’t even publicly acknowledged this software program vulnerability. At any charge, the bug appears to be particularly associated to iOS as a result of Android at this level doesn’t exhibit the identical community naming difficulty.

→ How you can share entry to your Wi-Fi community with out revealing the password

It’s unclear if malicious actors may be capable to additional exploit the bug. Apple is thought for responding to vital vulnerabilities in a well timed method so right here’s hoping it fixes this bug earlier than exploits have an opportunity to occur.

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