Apple Releases Emergency Security Updates for iOS and iPadOS to Patch Critical Vulnerability

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2025-02-11

Apple has recently rolled out emergency security updates for iOS and iPadOS to address a critical vulnerability identified as CVE-2025-24200. This flaw, actively exploited in the wild, could enable attackers to bypass USB Restricted Mode on locked devices, potentially compromising user data and device security. Users are strongly advised to update their devices immediately to mitigate this risk.

Steps to Update Your iOS/iPadOS Device:

1. Check for Updates:

  • Open the Settings app on your device.
  • Navigate to General > Software Update.
  • If an update is available, tap Download and Install.

2. Enable Automatic Updates (Recommended):

  • Go to Settings > General > Software Update > Automatic Updates.
  • Toggle on Download iOS/iPadOS Updates and Install iOS/iPadOS Updates.

3. Verify Update Installation:

  • After updating, go to Settings > General > About.
  • Check the Software Version to ensure it matches the latest release.

Additional Security Measures:

  • Enable USB Restricted Mode:
  • Go to Settings > Face ID & Passcode (or Touch ID & Passcode).
  • Scroll down and ensure USB Accessories is set to “Allow Access When Unlocked.”

  • Monitor Device Activity:

  • Use commands like `log show –predicate ‘eventMessage contains “USB”‘ –info` in macOS Terminal to check USB-related logs on paired devices.

What Undercode Say:

The recent emergency update from Apple underscores the importance of timely software updates in maintaining device security. The vulnerability, CVE-2025-24200, highlights the risks associated with USB Restricted Mode bypass, a feature designed to prevent unauthorized access to locked devices. This incident serves as a reminder to always keep your devices updated and to enable additional security features like USB Restricted Mode.

For Linux users, similar security practices can be applied. For instance, you can monitor USB device connections using commands like `lsusb` or `dmesg | grep usb` to detect unauthorized devices. Additionally, tools like `udev` rules can be configured to restrict USB access on Linux systems. For example:


<h1>Create a udev rule to block specific USB devices</h1>

echo 'SUBSYSTEM=="usb", ATTR{idVendor}=="xxxx", ATTR{idProduct}=="yyyy", ACTION=="add", ENV{ID_USB_INTERFACES}=="*", RUN+="/bin/sh -c 'echo 0 > /sys/bus/usb/devices/%k/authorized'"' | sudo tee /etc/udev/rules.d/99-block-usb.rules

Replace `xxxx` and `yyyy` with the vendor and product IDs of the USB device you want to block. Reload udev rules with sudo udevadm control --reload-rules.

For further reading on securing Linux systems, visit:

In conclusion, staying vigilant and proactive in applying security updates and configurations is crucial in today’s threat landscape. Whether you’re using Apple devices or Linux systems, understanding and implementing these practices can significantly reduce the risk of exploitation. Always remember: security is a continuous process, not a one-time task.

References:

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