This article addresses the critical bug discovered in Google Pixel phones, which allows hackers to bypass the lock screen and gain unauthorized access. The bug impacts various Android versions, including 10, 11, 12, 12L, and 13, and it revolves around the technique of SIM swapping. By utilizing a new SIM card with a PUK code, the attacker triggers the bug and performs a hot swap to reset the PIN, thereby obtaining access to the device. Google has acknowledged the bug and rewarded the researcher who reported it. The bug has been fixed in the November 2022 security update, although users may need to manually initiate the update, which may require multiple attempts. This vulnerability emphasizes the significance of keeping security patches up to date and the necessity of regular security updates to mitigate potential cyberattacks. Users are advised to safeguard personal information, employ strong passcodes, and remain vigilant regarding potential security risks.
Key Takeaways
- The critical bug in Google Pixel phones allowed hackers to bypass the lock screen, including passcode, pattern, and PIN.
- The bug could be exploited by swapping the SIM card with a new SIM that had the PUK code, allowing the attacker to unlock the device.
- Google acknowledged the bug and rewarded the researcher who reported it with $70,000. The bug has been fixed in the November 2022 security update.
- This incident highlights the importance of constant security updates, strong passcodes, and device encryption to safeguard personal information and protect against potential security risks.
Bug Description
The bug in Google Pixel phones is considered critical as it allows hackers to bypass the lock screen, including passcode, pattern, and PIN, by exploiting the vulnerability in Android versions 10, 11, 12, 12L, and 13. This poses a significant impact on user privacy, exposing their personal data to potential unauthorized access. It highlights the importance of regular security updates to address such vulnerabilities and protect user information. This bug has been acknowledged by Google, and a reward of $70,000 was given to the researcher who reported it. It is worth noting that the bug had been previously reported but was not reproduced until now, leading to its identification and subsequent fix. Users are advised to update their devices to the November 5, 2022, Security Update to mitigate the risk posed by this bug.
SIM Swapping Technique
SIM swapping technique is a simple yet effective method used to exploit a vulnerability in certain Android devices, allowing unauthorized access to the device’s lock screen and bypassing various security measures such as passcodes and patterns. This technique involves swapping the SIM card with a new one that contains a Personal Unlocking Key (PUK) code. By performing a hot swap of the SIM card on the same SIM tray, the attacker can reset the lock screen PIN by entering the PUK code of the new SIM. This grants the attacker access to the device and the ability to change the PIN.
Measures to prevent SIM swapping attacks include regularly updating the device’s security software to the latest version, as the bug has been fixed in the November Android security updates. Additionally, turning off the phone when leaving it unattended can prevent access to encrypted user data. However, it is important to note that persistence may still be possible. Using Azure Active Directory Security and implementing strong passcodes and patterns can also help safeguard against SIM swapping attacks.
Bug Exploitation Steps
To exploit the bug, the attacker must first lock the vulnerable Pixel Phone and enter the wrong PIN three times. Once this is done, they can perform a hot swap with a new SIM on the same SIM tray. By resetting the PIN using the Personal Unlocking Key (PUK) code of the new SIM, the attacker gains access to the phone and can change the PIN. This bug highlights potential security risks, as it allows unauthorized access to locked devices. It emphasizes the importance of constant security updates to address vulnerabilities and protect user data. It is crucial for users to stay vigilant and update their devices regularly to mitigate the risk of such exploits.
Patch Advisory and Rewards
The bug report led to the identification and resolution of the security flaw, highlighting the value of coordinated efforts between researchers and technology companies to ensure the continuous improvement of device security. The bug was initially acknowledged by Google after the researcher made multiple reporting attempts. Although the bug was previously reported, it was not successfully reproduced until this specific report. As a result, the researcher was rewarded with $70,000 for their contribution to the bug discovery. This case emphasizes the importance of responsible disclosure and the need for technology companies to actively engage with researchers to address vulnerabilities promptly. Such collaboration ensures that the necessary patches and updates are implemented to protect user data and enhance the overall security of devices.
Fixing the Bug
One method to address the identified security flaw involves manually triggering the update in the device’s Settings – Security, requiring potential multiple attempts for successful installation. Updating Pixel devices is crucial in resolving the critical bug and ensuring the security of user data. It is important to prioritize cybersecurity in mobile devices, especially in light of the vulnerability exposed in the lock screen protections of Google Pixel phones. Constant security updates are necessary to mitigate the potential for unauthorized access and protect user privacy. By staying updated with the latest patches, users can safeguard their personal information and minimize the risks associated with such vulnerabilities. To effectively address the bug, users are advised to contact Google for further assistance and rely on reliable sources such as Cyber Security News for relevant information.
Frequently Asked Questions
How can the bug in Google Pixel phones be exploited by hackers?
Hackers can exploit the bug in Google Pixel phones by performing a SIM swapping technique. They need a new SIM with a PUK code, which is used to reset the PIN after entering the wrong PIN three times. This allows them to bypass the lock screen and gain unauthorized access to the device.
What is the SIM swapping technique used to trigger the bug?
The sim swapping technique is used to trigger the lock screen vulnerability in Google Pixel phones. By swapping the SIM card with a new one containing the PUK code, hackers can bypass the lock screen and gain unauthorized access to the device.
What are the steps to exploit the bug and bypass the lock screen on a vulnerable Pixel phone?
To exploit the bug and bypass the lock screen on a vulnerable Pixel phone, the attacker needs to lock the phone with a wrong PIN three times. Then, they perform a hot swap with a new SIM and enter the PUK code to reset the PIN, allowing access to the device.
What was the advisory and reward given by Google for reporting the bug?
Google acknowledged the bug and rewarded the researcher $70,000 for reporting it. The bug had been previously reported but not reproduced, and the researcher’s report led to the identification and fix of the vulnerability.
How can users fix the bug on their Google Pixel devices and what should they do if they are unable to update?
Users can fix the bug on their Google Pixel devices by manually triggering the update in Settings – Security. If they are unable to update, they should turn off the phone when leaving it unattended to prevent unauthorized access to encrypted user data.
